{"componentChunkName":"component---src-templates-tag-js","path":"/tags/passport-js/","result":{"data":{"site":{"siteMetadata":{"title":"LoginRadius Blog"}},"allMarkdownRemark":{"totalCount":2,"edges":[{"node":{"fields":{"slug":"/engineering/linkedin-login-using-node-passport/"},"html":"<p>This blog article will guide you to add \"log in with LinkedIn\"\nfunctionality in your application. Here we will be implementing <strong>Linkedin Login</strong>  using NodeJS and <a href=\"http://www.passportjs.org/\">Passport</a>. </p>\n<p>Passport is an authentication middleware for Node, which authenticates requests and delegates all other functionality to the application. Considering the unique application requirements, Passport has stuck to authentication mechanisms known as strategies. In the blog, we will be implementing a similar strategy for Login with Linkedin.</p>\n<h2 id=\"pre--requisites\" style=\"position:relative;\"><a href=\"#pre--requisites\" aria-label=\"pre  requisites permalink\" class=\"anchor before\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path fill-rule=\"evenodd\" d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>Pre -Requisites:</h2>\n<ol>\n<li>Basic Knowledge of NodeJS </li>\n<li>Node JS should be installed on your system. </li>\n</ol>\n<h2 id=\"steps-to-configure\" style=\"position:relative;\"><a href=\"#steps-to-configure\" aria-label=\"steps to configure permalink\" class=\"anchor before\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path fill-rule=\"evenodd\" d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>Steps to configure</h2>\n<ol>\n<li>Creating Linkedin <code>APP_ID</code> and <code>APP_SECRET</code></li>\n<li>Go to <a href=\"https://www.linkedin.com/developers/\">Developer Linkedin</a> and login with your Linkedin account. </li>\n<li>Once you have registered, click on the <code>create app</code> link and add the required details to create an app</li>\n</ol>\n<p><img src=\"/75132ca3ed5b7cd02270d0e280055008/create-app.webp\" alt=\"Create Linkedin APP\" title=\"Create Linkedin APP\"></p>\n<p>Provide basic details about your app:</p>\n<ul>\n<li>App name</li>\n<li>Company</li>\n<li>Privacy policy URL</li>\n<li>Business email</li>\n<li>\n<p>App logo</p>\n<ul>\n<li>After creating apps go to the <code>auth</code> tab in the navigation bar as shown below. You can now copy your secret and ID from here </li>\n</ul>\n<p><img src=\"/a78c4aa6cfc27a4af94c9233d52f3538/app-credentials.webp\" alt=\"App ID and Secret\" title=\"App ID and Sceret\"></p>\n</li>\n<li>\n<p>Now enough, let's move to code, First of all, create a directory named <code>Linkedin-node-authentication</code></p>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"0\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">mkdir Linkedin-node-authentication</span></code></pre>\n</li>\n<li>Move to the directory <code>Linkedin-node-authentication/</code></li>\n</ul>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"1\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">  cd Linkedin-node-authentication</span></code></pre>\n<ol start=\"4\">\n<li>In the root create a file <code>package.json</code> and copy the following code </li>\n</ol>\n<p>The dependencies, we are going to use in the projects are </p>\n<ul>\n<li><code>express</code> : Node web framework</li>\n<li><code>express-session</code> Session managment of express</li>\n<li><code>passport</code> Authentication middleware for Node.js </li>\n<li><code>passport-linkedin-oauth2</code> A simple passport strategy for LinkedIn OAuth2 <a href=\"http://www.passportjs.org/packages/passport-linkedin-oauth2/\">passport linkedin oauth2</a></li>\n<li><code>ejs</code> - Templating engine</li>\n</ul>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"json\" data-index=\"2\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk1\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;name&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;linkedin-login-node&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;version&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;1.0.0&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;description&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;Basic application for setting up Linkedin login using node and passport&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;main&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;index.js&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;scripts&quot;</span><span class=\"mtk1\">: {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;test&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;echo </span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\">Error: no test specified</span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\"> && exit 1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;start&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;node server.js&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  },</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;author&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;LoginRadius&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;license&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;ISC&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;dependencies&quot;</span><span class=\"mtk1\">: {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;ejs&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^3.1.2&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;express&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^4.17.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;express-session&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^1.17.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;passport&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^0.4.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;passport-linkedin-oauth2&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^2.0.0&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span></code></pre>\n<ol start=\"5\">\n<li>\n<p>After this run the following command in the terminal</p>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"3\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">npm install</span></code></pre>\n</li>\n<li>Now create a file named <code>server.js</code> and paste the following code  </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"javascript\" data-index=\"4\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">express</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">app</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">express</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">session</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express-session&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">passport</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">LinkedInStrategy</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport-linkedin-oauth2&#39;</span><span class=\"mtk1\">).</span><span class=\"mtk12\">Strategy</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">routes</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;./routes.js&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;./config&#39;</span><span class=\"mtk1\">)</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">set</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;view engine&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk8\">&#39;ejs&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk11\">session</span><span class=\"mtk1\">({</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">resave:</span><span class=\"mtk1\"> </span><span class=\"mtk4\">false</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">saveUninitialized:</span><span class=\"mtk1\"> </span><span class=\"mtk4\">true</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">secret:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;SECRET&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">initialize</span><span class=\"mtk1\">());</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">session</span><span class=\"mtk1\">());</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">serializeUser</span><span class=\"mtk1\">(</span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">user</span><span class=\"mtk1\">, </span><span class=\"mtk12\">cb</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk11\">cb</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">user</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">deserializeUser</span><span class=\"mtk1\">(</span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">obj</span><span class=\"mtk1\">, </span><span class=\"mtk12\">cb</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk11\">cb</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">obj</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk4\">new</span><span class=\"mtk1\"> </span><span class=\"mtk10\">LinkedInStrategy</span><span class=\"mtk1\">({</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">clientID:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">linkedinAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">clientID</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">clientSecret:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">linkedinAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">clientSecret</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">callbackURL:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">linkedinAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">callbackURL</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">scope:</span><span class=\"mtk1\"> [</span><span class=\"mtk8\">&#39;r_emailaddress&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk8\">&#39;r_liteprofile&#39;</span><span class=\"mtk1\">],</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">token</span><span class=\"mtk1\">, </span><span class=\"mtk12\">tokenSecret</span><span class=\"mtk1\">, </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">, </span><span class=\"mtk12\">done</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk15\">return</span><span class=\"mtk1\"> </span><span class=\"mtk11\">done</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">routes</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">port</span><span class=\"mtk1\"> = </span><span class=\"mtk7\">3000</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">listen</span><span class=\"mtk1\">(</span><span class=\"mtk12\">port</span><span class=\"mtk1\">, () </span><span class=\"mtk4\">=&gt;</span><span class=\"mtk1\"> {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk10\">console</span><span class=\"mtk1\">.</span><span class=\"mtk11\">log</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;App listening on port &#39;</span><span class=\"mtk1\"> + </span><span class=\"mtk12\">port</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span></code></pre>\n<ol start=\"7\">\n<li>Now create a file named <code>routes.js</code> in the root directory and paste the following code </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"javascript\" data-index=\"5\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">passport</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">express</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">var</span><span class=\"mtk1\"> </span><span class=\"mtk12\">router</span><span class=\"mtk1\"> = </span><span class=\"mtk12\">express</span><span class=\"mtk1\">.</span><span class=\"mtk11\">Router</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">render</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;pages/index.ejs&#39;</span><span class=\"mtk1\">); </span><span class=\"mtk3\">// load the index.ejs file</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/profile&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">isLoggedIn</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">render</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;pages/profile.ejs&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">user:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk12\">user</span><span class=\"mtk1\"> </span><span class=\"mtk3\">// get the user out of session and pass to template</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  });</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/auth/linkedin&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">authenticate</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;linkedin&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">scope:</span><span class=\"mtk1\"> [</span><span class=\"mtk8\">&#39;r_emailaddress&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk8\">&#39;r_liteprofile&#39;</span><span class=\"mtk1\">],</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/auth/linkedin/callback&#39;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">authenticate</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;linkedin&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">successRedirect:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;/profile&#39;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">failureRedirect:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;/login&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/logout&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk11\">logout</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">redirect</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">function</span><span class=\"mtk1\"> </span><span class=\"mtk11\">isLoggedIn</span><span class=\"mtk1\">(</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">, </span><span class=\"mtk12\">next</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk15\">if</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk11\">isAuthenticated</span><span class=\"mtk1\">())</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk15\">return</span><span class=\"mtk1\"> </span><span class=\"mtk11\">next</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">redirect</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk10\">module</span><span class=\"mtk1\">.</span><span class=\"mtk10\">exports</span><span class=\"mtk1\"> = </span><span class=\"mtk12\">router</span><span class=\"mtk1\">;</span></span></code></pre>\n<ol start=\"7\">\n<li>Create a directory <code>views</code> and under this create a directory named <code>pages</code>. Under this folder create two pages named <code>profile.ejs</code> and <code>index.ejs</code></li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"html\" data-index=\"6\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk3\">// index.ejs</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!</span><span class=\"mtk12\">doctype</span><span class=\"mtk1\"> </span><span class=\"mtk12\">html</span><span class=\"mtk1\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Linkedin Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://fonts.googleapis.com/icon?family=Material+Icons&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">type</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;text/css&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.5/css/materialize.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .linkedin </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">background</span><span class=\"mtk1\">-</span><span class=\"mtk12\">color</span><span class=\"mtk1\">: #0073</span><span class=\"mtk12\">b1</span><span class=\"mtk1\"> !</span><span class=\"mtk12\">important</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">color</span><span class=\"mtk1\">: #</span><span class=\"mtk12\">fff</span><span class=\"mtk1\"> !</span><span class=\"mtk12\">important</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .fa-linkedin-f:before,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .fa-linkedin:before </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">content</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;</span><span class=\"mtk6\">\\f</span><span class=\"mtk8\">0e1&quot;</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">nav</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;light-blue lighten-1&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">role</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;navigation&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;nav-wrapper container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;logo-container&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;#&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;brand-logo&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">nav</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;section no-pad-bot&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;index-banner&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;row center&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;col s6 offset-s3&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-content&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">span</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-title&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Linkedin Login using Node and passport</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">span</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-action&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;/auth/linkedin&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;waves-effect waves-light btn social linkedin&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">                </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">i</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;fa fa-linkedin&quot;</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">i</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\"> Sign in with Linkedin</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span></code></pre>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"html\" data-index=\"7\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!- </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">.</span><span class=\"mtk12\">ejs</span><span class=\"mtk1\">-&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!</span><span class=\"mtk12\">doctype</span><span class=\"mtk1\"> </span><span class=\"mtk12\">html</span><span class=\"mtk1\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">  </span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">LinkedIn Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://fonts.googleapis.com/icon?family=Material+Icons&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">type</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;text/css&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.5/css/materialize.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .card:hover </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">box</span><span class=\"mtk1\">-</span><span class=\"mtk12\">shadow</span><span class=\"mtk1\">: </span><span class=\"mtk7\">0</span><span class=\"mtk1\"> 10</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> 20</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> </span><span class=\"mtk11\">rgba</span><span class=\"mtk1\">(</span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0.19</span><span class=\"mtk1\">), </span><span class=\"mtk7\">0</span><span class=\"mtk1\"> 6</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> 6</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> </span><span class=\"mtk11\">rgba</span><span class=\"mtk1\">(</span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0.23</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">margin</span><span class=\"mtk1\">-</span><span class=\"mtk12\">bottom</span><span class=\"mtk1\">: 54</span><span class=\"mtk12\">px</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">nav</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;light-blue lighten-1&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">role</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;navigation&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;nav-wrapper container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;logo-container&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;#&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;brand-logo&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;/logout&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;right&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Logout</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">nav</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;section no-pad-bot&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;index-banner&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;row center&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;col s12&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-content blue lighten-3&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">span</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-title white-text&quot;</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">i</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;large material-icons&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">person</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">i</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">                </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">span</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-action&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">h5</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">b</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">&lt;%= user.displayName %&gt;</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">b</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">h5</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">p</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Linkedin id</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">: &lt;%= user.id %&gt;</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">p</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span></code></pre>\n<ol start=\"8\">\n<li>Finally, when you are done with the above code you can now write all your app details gathered in <em>step 1</em> to <code>config.js</code> file created in the root directory </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"js\" data-index=\"8\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk10\">module</span><span class=\"mtk1\">.</span><span class=\"mtk10\">exports</span><span class=\"mtk1\"> = {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk8\">&#39;linkedinAuth&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\"> {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk8\">&#39;clientID&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;&lt;CLIENT_ID&gt;&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk3\">// your App ID</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk8\">&#39;clientSecret&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;&lt;CLIENT_SECRET&gt;&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk3\">// your App Secret</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk8\">&#39;callbackURL&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;http://127.0.0.1:3000/auth/linkedin/callback&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span></code></pre>\n<ol start=\"9\">\n<li>Let's have a final check with the repository, aftre follwoing all the steps in the same pordr the directory structure of your code will look like below:  </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"9\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">// Final directory structure</span>\n<span class=\"grvsc-line\">Linkedin-node-authentication/</span>\n<span class=\"grvsc-line\">  --|node_modules</span>\n<span class=\"grvsc-line\">  --|views/</span>\n<span class=\"grvsc-line\">    |--|pages/</span>\n<span class=\"grvsc-line\">    |----|error.ejs</span>\n<span class=\"grvsc-line\">    |----|profile.ejs</span>\n<span class=\"grvsc-line\">    |----|index.ejs</span>\n<span class=\"grvsc-line\">  --|config.js</span>\n<span class=\"grvsc-line\">  --|package.json</span>\n<span class=\"grvsc-line\">  --|package-lock.json</span>\n<span class=\"grvsc-line\">  --|routes.js</span>\n<span class=\"grvsc-line\">  --|server.js</span></code></pre>\n<ol start=\"10\">\n<li>Now run the server by executing below command in the directory <code>Linkedin-node-authentication/</code></li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"10\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">npm start</span></code></pre>\n<ol start=\"8\">\n<li>Visit the browser with the URL <code>http://localhost:3000</code></li>\n</ol>\n<p>  <img src=\"/bfd29e4b03283c3a5cfe67a43e18f3f5/linkedin-login-page.webp\" alt=\"Linkedin login home page\" title=\"Linkedin login home page\"></p>\n<p>  Click on the sign in button, and you will be asked to login through Linkedin. Once logged in you will be redirected to profile page as below:</p>\n<p>  <img src=\"/2c95500cf554892bb994a1e8d7cc90f8/linkedin-profile-page.webp\" alt=\"Linkedin login profile page\" title=\"Linkedin login profile page\"></p>\n<p>  The complete sample code for the above tutorial can be found <a href=\"https://github.com/LoginRadius/engineering-blog-samples/tree/master/NodeJs/LinkedinLoginPassport\">here</a></p>\n<style class=\"grvsc-styles\">\n  .grvsc-container {\n    overflow: auto;\n    -webkit-overflow-scrolling: touch;\n    padding-top: 1rem;\n    padding-top: var(--grvsc-padding-top, var(--grvsc-padding-v, 1rem));\n    padding-bottom: 1rem;\n    padding-bottom: var(--grvsc-padding-bottom, var(--grvsc-padding-v, 1rem));\n    border-radius: 8px;\n    border-radius: var(--grvsc-border-radius, 8px);\n    font-feature-settings: normal;\n  }\n  \n  .grvsc-code {\n    display: inline-block;\n    min-width: 100%;\n  }\n  \n  .grvsc-line {\n    display: inline-block;\n    box-sizing: border-box;\n    width: 100%;\n    padding-left: 1.5rem;\n    padding-left: var(--grvsc-padding-left, var(--grvsc-padding-h, 1.5rem));\n    padding-right: 1.5rem;\n    padding-right: var(--grvsc-padding-right, var(--grvsc-padding-h, 1.5rem));\n  }\n  \n  .grvsc-line-highlighted {\n    background-color: var(--grvsc-line-highlighted-background-color, transparent);\n    box-shadow: inset var(--grvsc-line-highlighted-border-width, 4px) 0 0 0 var(--grvsc-line-highlighted-border-color, transparent);\n  }\n  \n  .dark-default-dark {\n    background-color: #1E1E1E;\n    color: #D4D4D4;\n  }\n  .dark-default-dark .mtk1 { color: #D4D4D4; }\n  .dark-default-dark .mtk12 { color: #9CDCFE; }\n  .dark-default-dark .mtk8 { color: #CE9178; }\n  .dark-default-dark .mtk6 { color: #D7BA7D; }\n  .dark-default-dark .mtk4 { color: #569CD6; }\n  .dark-default-dark .mtk11 { color: #DCDCAA; }\n  .dark-default-dark .mtk10 { color: #4EC9B0; }\n  .dark-default-dark .mtk15 { color: #C586C0; }\n  .dark-default-dark .mtk7 { color: #B5CEA8; }\n  .dark-default-dark .mtk3 { color: #6A9955; }\n  .dark-default-dark .mtk17 { color: #808080; }\n</style>","frontmatter":{"date":"June 10, 2020","updated_date":null,"title":"LinkedIn Login using Node JS and passport","tags":["LinkedIn","Login","NodeJs","PassportJS"],"coverImage":{"childImageSharp":{"fluid":{"aspectRatio":1.7699115044247788,"src":"/static/717d9ce34aacf1736c240b0fa8d67551/58556/linkedin_login_node.webp","srcSet":"/static/717d9ce34aacf1736c240b0fa8d67551/61e93/linkedin_login_node.webp 200w,\n/static/717d9ce34aacf1736c240b0fa8d67551/1f5c5/linkedin_login_node.webp 400w,\n/static/717d9ce34aacf1736c240b0fa8d67551/58556/linkedin_login_node.webp 800w,\n/static/717d9ce34aacf1736c240b0fa8d67551/99238/linkedin_login_node.webp 1200w,\n/static/717d9ce34aacf1736c240b0fa8d67551/135cd/linkedin_login_node.webp 1280w","sizes":"(max-width: 800px) 100vw, 800px"}}},"author":{"id":"Aman Agrawal","github":"aman-agrwl","avatar":null}}}},{"node":{"fields":{"slug":"/engineering/facebook-authentication-using-node-and-passport/"},"html":"<p>Social login is the need for simplifying your registration process and increasing the conversion rates. Here we will be implementing <strong>Facebook Login</strong>  using NodeJS and <a href=\"http://www.passportjs.org/\">Passport</a>. </p>\n<p>Passport is authentication middleware for Node, which authenticates requests and delegates all other functionality to the application. Considering the unique application requirements, passport has stuck to authentication mechanisms known as strategies. In the blog, we will be implementing a similar strategy for Login with Facebook.</p>\n<h2 id=\"pre--requisites\" style=\"position:relative;\"><a href=\"#pre--requisites\" aria-label=\"pre  requisites permalink\" class=\"anchor before\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path fill-rule=\"evenodd\" d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>Pre -Requisites:</h2>\n<ol>\n<li>Basic Knowledge of NodeJS </li>\n<li>Node JS should be installed on your system. </li>\n</ol>\n<h2 id=\"steps-to-configure\" style=\"position:relative;\"><a href=\"#steps-to-configure\" aria-label=\"steps to configure permalink\" class=\"anchor before\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"16\" version=\"1.1\" viewBox=\"0 0 16 16\" width=\"16\"><path fill-rule=\"evenodd\" d=\"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"></path></svg></a>Steps to configure</h2>\n<ol>\n<li>Creating Facebook <code>APP_ID</code> and <code>APP_SECRET</code></li>\n<li>Go to <a href=\"http://developers.facebook.com\">Facebook</a> and login with your Facebook account. </li>\n<li>Once you have registered, click on the <code>create app</code> link and you will need to enter the details in the following pop-up</li>\n</ol>\n<p><img src=\"/41ad5abd8263297d343e6408d2c90ebc/create-facebook-app.webp\" alt=\"Create Facebook APP\" title=\"Create Facebook APP\"></p>\n<ul>\n<li>After creating an app you need to add the product of Facebook, here we are going to use <strong>Facebook Login</strong> </li>\n</ul>\n<p><img src=\"/4ca38e0f8bb5f195c3de332002ac5f63/add-product.webp\" alt=\"Add a Facebook product\" title=\"Add a Facebook product\"></p>\n<ul>\n<li>After adding up the product you can now choose to have 'web' and while setting up the URL, you can simply write <code>http://localhost:3000</code></li>\n<li>After this go to tab 'MyApps' and select the <strong>App name</strong>. Select the 'Basic` from <em>settings</em> options in the sidebar as shown below. You can now copy your secret and ID from here</li>\n</ul>\n<p>  <img src=\"/a2c7d54fb8d728ccf59c4d5823234555/app-id-secret.webp\" alt=\"App ID and Secret\" title=\"App ID and Sceret\"></p>\n<ol start=\"2\">\n<li>\n<p>Now enough, let's move to code, First of all, create a directory named <code>facebook-node-authentication</code></p>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"0\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">mkdir facebook-node-authentication</span></code></pre>\n</li>\n<li>Move to the directory <code>facebook-node-authentication/</code></li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"1\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">  cd facebook-node-authentication</span></code></pre>\n<ol start=\"4\">\n<li>In the root create a file <code>package.json</code> and copy the following code </li>\n</ol>\n<p>The dependencies, we are going to use in the projects are </p>\n<ul>\n<li><code>express</code> : Node web framework</li>\n<li><code>express-session</code> Session managment of express</li>\n<li><code>passport</code> Authentication middleware for NodeJS </li>\n<li><code>passport-facebook</code> Facebook Plugin for passport</li>\n<li><code>ejs</code> - Templating engine</li>\n</ul>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"json\" data-index=\"2\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk1\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;name&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;facebook_login_node&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;version&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;1.0.0&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;description&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;</span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\">Basic application for setting up Facebook logij using node and passport</span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\">&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;main&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;index.js&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;scripts&quot;</span><span class=\"mtk1\">: {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;test&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;echo </span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\">Error: no test specified</span><span class=\"mtk6\">\\&quot;</span><span class=\"mtk8\"> && exit 1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;start&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;node server.js&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  },</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;author&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;license&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;ISC&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">&quot;dependencies&quot;</span><span class=\"mtk1\">: {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;ejs&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^3.1.2&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;express&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^4.17.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;express-session&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^1.17.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;passport&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^0.4.1&quot;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">&quot;passport-facebook&quot;</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;^3.0.0&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span></code></pre>\n<ol start=\"5\">\n<li>\n<p>After this run the following command in the terminal</p>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"3\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">npm install</span></code></pre>\n</li>\n<li>Now create a file named <code>server.js</code> and paste the following code  </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"javascript\" data-index=\"4\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">express</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">app</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">express</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">session</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express-session&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">passport</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">FacebookStrategy</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport-facebook&#39;</span><span class=\"mtk1\">).</span><span class=\"mtk12\">Strategy</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">routes</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;./routes.js&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;./config&#39;</span><span class=\"mtk1\">)</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">set</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;view engine&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk8\">&#39;ejs&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk11\">session</span><span class=\"mtk1\">({</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">resave:</span><span class=\"mtk1\"> </span><span class=\"mtk4\">false</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">saveUninitialized:</span><span class=\"mtk1\"> </span><span class=\"mtk4\">true</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">secret:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;SECRET&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">initialize</span><span class=\"mtk1\">());</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">session</span><span class=\"mtk1\">());</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">serializeUser</span><span class=\"mtk1\">(</span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">user</span><span class=\"mtk1\">, </span><span class=\"mtk12\">cb</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk11\">cb</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">user</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">deserializeUser</span><span class=\"mtk1\">(</span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">obj</span><span class=\"mtk1\">, </span><span class=\"mtk12\">cb</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk11\">cb</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">obj</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk4\">new</span><span class=\"mtk1\"> </span><span class=\"mtk10\">FacebookStrategy</span><span class=\"mtk1\">({</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">clientID:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">facebookAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">clientID</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">clientSecret:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">facebookAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">clientSecret</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">callbackURL:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">config</span><span class=\"mtk1\">.</span><span class=\"mtk12\">facebookAuth</span><span class=\"mtk1\">.</span><span class=\"mtk12\">callbackURL</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">accessToken</span><span class=\"mtk1\">, </span><span class=\"mtk12\">refreshToken</span><span class=\"mtk1\">, </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">, </span><span class=\"mtk12\">done</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk15\">return</span><span class=\"mtk1\"> </span><span class=\"mtk11\">done</span><span class=\"mtk1\">(</span><span class=\"mtk4\">null</span><span class=\"mtk1\">, </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">use</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">routes</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">port</span><span class=\"mtk1\"> = </span><span class=\"mtk7\">3000</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">app</span><span class=\"mtk1\">.</span><span class=\"mtk11\">listen</span><span class=\"mtk1\">(</span><span class=\"mtk12\">port</span><span class=\"mtk1\">, () </span><span class=\"mtk4\">=&gt;</span><span class=\"mtk1\"> {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk10\">console</span><span class=\"mtk1\">.</span><span class=\"mtk11\">log</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;App listening on port &#39;</span><span class=\"mtk1\"> + </span><span class=\"mtk12\">port</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span></code></pre>\n<ol start=\"7\">\n<li>Now create a file named <code>route.js</code> in the root directory and paste the following code </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"javascript\" data-index=\"5\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">passport</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;passport&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">const</span><span class=\"mtk1\"> </span><span class=\"mtk12\">express</span><span class=\"mtk1\"> = </span><span class=\"mtk11\">require</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;express&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">var</span><span class=\"mtk1\"> </span><span class=\"mtk12\">router</span><span class=\"mtk1\"> = </span><span class=\"mtk12\">express</span><span class=\"mtk1\">.</span><span class=\"mtk11\">Router</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">render</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;pages/index.ejs&#39;</span><span class=\"mtk1\">); </span><span class=\"mtk3\">// load the index.ejs file</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/profile&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">isLoggedIn</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">render</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;pages/profile.ejs&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">user:</span><span class=\"mtk1\"> </span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk12\">user</span><span class=\"mtk1\"> </span><span class=\"mtk3\">// get the user out of session and pass to template</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  });</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/error&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">isLoggedIn</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">render</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;pages/error.ejs&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/auth/facebook&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">authenticate</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;facebook&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">scope:</span><span class=\"mtk1\"> [</span><span class=\"mtk8\">&#39;public_profile&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk8\">&#39;email&#39;</span><span class=\"mtk1\">]</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/auth/facebook/callback&#39;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">passport</span><span class=\"mtk1\">.</span><span class=\"mtk11\">authenticate</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;facebook&#39;</span><span class=\"mtk1\">, {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">successRedirect:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;/profile&#39;</span><span class=\"mtk1\">,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">failureRedirect:</span><span class=\"mtk1\"> </span><span class=\"mtk8\">&#39;/error&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  }));</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk12\">router</span><span class=\"mtk1\">.</span><span class=\"mtk11\">get</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/logout&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk4\">function</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk11\">logout</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">redirect</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">});</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk4\">function</span><span class=\"mtk1\"> </span><span class=\"mtk11\">isLoggedIn</span><span class=\"mtk1\">(</span><span class=\"mtk12\">req</span><span class=\"mtk1\">, </span><span class=\"mtk12\">res</span><span class=\"mtk1\">, </span><span class=\"mtk12\">next</span><span class=\"mtk1\">) {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk15\">if</span><span class=\"mtk1\"> (</span><span class=\"mtk12\">req</span><span class=\"mtk1\">.</span><span class=\"mtk11\">isAuthenticated</span><span class=\"mtk1\">())</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk15\">return</span><span class=\"mtk1\"> </span><span class=\"mtk11\">next</span><span class=\"mtk1\">();</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk12\">res</span><span class=\"mtk1\">.</span><span class=\"mtk11\">redirect</span><span class=\"mtk1\">(</span><span class=\"mtk8\">&#39;/&#39;</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk10\">module</span><span class=\"mtk1\">.</span><span class=\"mtk10\">exports</span><span class=\"mtk1\"> = </span><span class=\"mtk12\">router</span><span class=\"mtk1\">;</span></span></code></pre>\n<ol start=\"7\">\n<li>Create a directory <code>views</code> and under this create a directory named <code>pages</code>. Under this folder create two pages named <code>profile.ejs</code> and <code>index.ejs</code></li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"html\" data-index=\"6\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk3\">// index.ejs</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!</span><span class=\"mtk12\">doctype</span><span class=\"mtk1\"> </span><span class=\"mtk12\">html</span><span class=\"mtk1\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Facebook Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://fonts.googleapis.com/icon?family=Material+Icons&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">type</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;text/css&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.5/css/materialize.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .facebook </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">background</span><span class=\"mtk1\">-</span><span class=\"mtk12\">color</span><span class=\"mtk1\">: #3</span><span class=\"mtk12\">b5998</span><span class=\"mtk1\"> !</span><span class=\"mtk12\">important</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">color</span><span class=\"mtk1\">: #</span><span class=\"mtk12\">fff</span><span class=\"mtk1\"> !</span><span class=\"mtk12\">important</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .fa-facebook-f:before,</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .fa-facebook:before </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">content</span><span class=\"mtk1\">: </span><span class=\"mtk8\">&quot;</span><span class=\"mtk6\">\\f</span><span class=\"mtk8\">09a&quot;</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">nav</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;light-blue lighten-1&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">role</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;navigation&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;nav-wrapper container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;logo-container&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;#&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;brand-logo&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">nav</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;section no-pad-bot&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;index-banner&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;row center&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;col s6 offset-s3&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-content&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">span</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-title&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Facebook Login using Node and passport</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">span</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-action&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;/auth/facebook&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;waves-effect waves-light btn social facebook&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">                </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">i</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;fa fa-facebook&quot;</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">i</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\"> Sign in with facebook</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span></code></pre>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"html\" data-index=\"7\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!- </span><span class=\"mtk12\">profile</span><span class=\"mtk1\">.</span><span class=\"mtk12\">ejs</span><span class=\"mtk1\">-&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">&lt;!</span><span class=\"mtk12\">doctype</span><span class=\"mtk1\"> </span><span class=\"mtk12\">html</span><span class=\"mtk1\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">  </span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Facebook Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">title</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://fonts.googleapis.com/icon?family=Material+Icons&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">link</span><span class=\"mtk1\"> </span><span class=\"mtk12\">rel</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;stylesheet&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">type</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;text/css&quot;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.5/css/materialize.min.css&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    .card:hover </span><span class=\"mtk4\">{</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">box</span><span class=\"mtk1\">-</span><span class=\"mtk12\">shadow</span><span class=\"mtk1\">: </span><span class=\"mtk7\">0</span><span class=\"mtk1\"> 10</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> 20</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> </span><span class=\"mtk11\">rgba</span><span class=\"mtk1\">(</span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0.19</span><span class=\"mtk1\">), </span><span class=\"mtk7\">0</span><span class=\"mtk1\"> 6</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> 6</span><span class=\"mtk12\">px</span><span class=\"mtk1\"> </span><span class=\"mtk11\">rgba</span><span class=\"mtk1\">(</span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0</span><span class=\"mtk1\">, </span><span class=\"mtk7\">0.23</span><span class=\"mtk1\">);</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk12\">margin</span><span class=\"mtk1\">-</span><span class=\"mtk12\">bottom</span><span class=\"mtk1\">: 54</span><span class=\"mtk12\">px</span><span class=\"mtk1\">;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk4\">}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">style</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">head</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">nav</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;light-blue lighten-1&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">role</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;navigation&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;nav-wrapper container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;logo-container&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;#&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;brand-logo&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Node Authentication</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">a</span><span class=\"mtk1\"> </span><span class=\"mtk12\">href</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;/logout&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;right&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Logout</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">a</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">nav</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;section no-pad-bot&quot;</span><span class=\"mtk1\"> </span><span class=\"mtk12\">id</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;index-banner&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;container&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">br</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;row center&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;col s12&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-content blue lighten-3&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">span</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-title white-text&quot;</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">i</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;large material-icons&quot;</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">person</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">i</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">                </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">span</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">div</span><span class=\"mtk1\"> </span><span class=\"mtk12\">class</span><span class=\"mtk1\">=</span><span class=\"mtk8\">&quot;card-action&quot;</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">h5</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">b</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">&lt;%= user.displayName %&gt;</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">b</span><span class=\"mtk17\">&gt;&lt;/</span><span class=\"mtk4\">h5</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">              </span><span class=\"mtk17\">&lt;</span><span class=\"mtk4\">p</span><span class=\"mtk17\">&gt;&lt;</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">Facebook id</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">strong</span><span class=\"mtk17\">&gt;</span><span class=\"mtk1\">: &lt;%= user.id %&gt;</span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">p</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">            </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">          </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">        </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">      </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">    </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">  </span><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">div</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">body</span><span class=\"mtk17\">&gt;</span></span>\n<span class=\"grvsc-line\"></span>\n<span class=\"grvsc-line\"><span class=\"mtk17\">&lt;/</span><span class=\"mtk4\">html</span><span class=\"mtk17\">&gt;</span></span></code></pre>\n<ol start=\"8\">\n<li>Finally, when you are done with the above code you can now write all your app details gathered in <em>step 1</em> to <code>config.js</code> file created in the root directory</li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"js\" data-index=\"8\"><code class=\"grvsc-code\"><span class=\"grvsc-line\"><span class=\"mtk10\">module</span><span class=\"mtk1\">.</span><span class=\"mtk10\">exports</span><span class=\"mtk1\"> = {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">\t</span><span class=\"mtk8\">&#39;facebookAuth&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\"> {</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">\t\t</span><span class=\"mtk8\">&#39;clientID&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\">  </span><span class=\"mtk8\">&#39;&lt;APP_ID&gt;&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk3\">// your App ID</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">\t\t</span><span class=\"mtk8\">&#39;clientSecret&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\">  </span><span class=\"mtk8\">&#39;&lt;APP_SECRET&gt;&#39;</span><span class=\"mtk1\">, </span><span class=\"mtk3\">// your App Secret</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">\t\t</span><span class=\"mtk8\">&#39;callbackURL&#39;</span><span class=\"mtk12\">:</span><span class=\"mtk1\">  </span><span class=\"mtk8\">&#39;http://localhost:3000/auth/facebook/callback&#39;</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">\t}</span></span>\n<span class=\"grvsc-line\"><span class=\"mtk1\">}</span></span></code></pre>\n<ol start=\"9\">\n<li>Let's have a final check with the repository, aftre follwoing all the steps in the same pordr the directory structure of your code will look like below:  </li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"9\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">// Final directory structure</span>\n<span class=\"grvsc-line\">facebook-node-authentication/</span>\n<span class=\"grvsc-line\">  --|node_modules</span>\n<span class=\"grvsc-line\">  --|views/</span>\n<span class=\"grvsc-line\">    |--|pages/</span>\n<span class=\"grvsc-line\">    |----|error.ejs</span>\n<span class=\"grvsc-line\">    |----|profile.ejs</span>\n<span class=\"grvsc-line\">    |----|index.ejs</span>\n<span class=\"grvsc-line\">  --|config.js</span>\n<span class=\"grvsc-line\">  --|package.json</span>\n<span class=\"grvsc-line\">  --|package-lock.json</span>\n<span class=\"grvsc-line\">  --|routes.js</span>\n<span class=\"grvsc-line\">  --|server.js</span></code></pre>\n<ol start=\"10\">\n<li>Now run the server by executing below command in the directory <code>facebook-node-authentication/</code></li>\n</ol>\n<pre class=\"grvsc-container dark-default-dark\" data-language=\"\" data-index=\"10\"><code class=\"grvsc-code\"><span class=\"grvsc-line\">npm start</span></code></pre>\n<ol start=\"8\">\n<li>Visit the browser with the URL <code>http://localhost:3000</code></li>\n</ol>\n<p>  <img src=\"/d141c6d362dba8db785c2ac77ed5e09d/facebook-login-home-page.webp\" alt=\"Facebook login home page\" title=\"Facebook login home page\"></p>\n<p>  <img src=\"/213fc3c7c63044e2a4e1b21859ea828a/Profile-page-facebook-login.webp\" alt=\"Facebook login profile page\" title=\"Facebook login profile page\"></p>\n<p> You can found the complete code used in this tutorial on our <a href=\"https://github.com/LoginRadius/engineering-blog-samples/tree/master/NodeJs/FacebookAuthenticationPassport\">Github Repo</a></p>\n<style class=\"grvsc-styles\">\n  .grvsc-container {\n    overflow: auto;\n    -webkit-overflow-scrolling: touch;\n    padding-top: 1rem;\n    padding-top: var(--grvsc-padding-top, var(--grvsc-padding-v, 1rem));\n    padding-bottom: 1rem;\n    padding-bottom: var(--grvsc-padding-bottom, var(--grvsc-padding-v, 1rem));\n    border-radius: 8px;\n    border-radius: var(--grvsc-border-radius, 8px);\n    font-feature-settings: normal;\n  }\n  \n  .grvsc-code {\n    display: inline-block;\n    min-width: 100%;\n  }\n  \n  .grvsc-line {\n    display: inline-block;\n    box-sizing: border-box;\n    width: 100%;\n    padding-left: 1.5rem;\n    padding-left: var(--grvsc-padding-left, var(--grvsc-padding-h, 1.5rem));\n    padding-right: 1.5rem;\n    padding-right: var(--grvsc-padding-right, var(--grvsc-padding-h, 1.5rem));\n  }\n  \n  .grvsc-line-highlighted {\n    background-color: var(--grvsc-line-highlighted-background-color, transparent);\n    box-shadow: inset var(--grvsc-line-highlighted-border-width, 4px) 0 0 0 var(--grvsc-line-highlighted-border-color, transparent);\n  }\n  \n  .dark-default-dark {\n    background-color: #1E1E1E;\n    color: #D4D4D4;\n  }\n  .dark-default-dark .mtk1 { color: #D4D4D4; }\n  .dark-default-dark .mtk12 { color: #9CDCFE; }\n  .dark-default-dark .mtk8 { color: #CE9178; }\n  .dark-default-dark .mtk6 { color: #D7BA7D; }\n  .dark-default-dark .mtk4 { color: #569CD6; }\n  .dark-default-dark .mtk11 { color: #DCDCAA; }\n  .dark-default-dark .mtk10 { color: #4EC9B0; }\n  .dark-default-dark .mtk15 { color: #C586C0; }\n  .dark-default-dark 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