Public APIs

Accessing LinkedIn using LinkedIn REST API

LinkedIn provides access to its data with the help of their REST API. LinkedIn REST API is an interface that helps developers to get access to the LinkedIn data from within their own applications.

The LinkedIn REST API allows you to interact with your network data, companies, groups, and more. It also provides you with a way to access your own LinkedIn profile data.

To access LinkedIn REST API first, you need to create an app on the LinkedIn developer portal. You can then use the API key and API secret provided by LinkedIn to authenticate your requests to the LinkedIn server.

Setting Up the LinkedIn App

Go to the LinkedIn Developer Portal
Sign in with your LinkedIn credentials
Select "Create App" from the dropdown menu on the top right corner
Fill out the necessary information about the app and agree to the terms and conditions to proceed
Once you have created the app, you will be provided with an API key and API secret. Keep them secure, as you will need them to authenticate your requests to the LinkedIn server.

Accessing LinkedIn REST API using JavaScript

Now that you have the API key and API secret, you can use the JavaScript language to access LinkedIn REST API. Here are some examples of how you can use the LinkedIn REST API using JavaScript:

Example 1: Retrieving Your Own Profile Information

const apiKey = '[API KEY]';
const secretKey = '[SECRET KEY]';

const url = `https://api.linkedin.com/v2/me?projection=(id,firstName,lastName,profilePicture(displayImage~:playableStreams))`;

const xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.setRequestHeader('Authorization', `Bearer ${access_token}`);
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    const response = JSON.parse(xhr.responseText);
    console.log(response);
  }
}
xhr.send();

Example 2: Retrieving a Company's Information

const apiKey = '[API KEY]';
const secretKey = '[SECRET KEY]';

const companyId = '[COMPANY ID]';

const url = `https://api.linkedin.com/v2/companies/${companyId}?projection=(id,name,logoV2(original~:url))`;

const xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.setRequestHeader('Authorization', `Bearer ${access_token}`);
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    const response = JSON.parse(xhr.responseText);
    console.log(response);
  }
}
xhr.send();

Example 3: Searching for People on LinkedIn

const apiKey = '[API KEY]';
const secretKey = '[SECRET KEY]';

const keywords = 'developer';
const count = 10;

const url = `https://api.linkedin.com/v2/search?q=title:${keywords}&facetCurrentCompany=3263&facetGeoRegion=us%3A0&facetNetwork=%5BF%5D&count=${count}&start=0&qp=context&projection=(id,firstName,lastName,vanityName,profilePicture(displayImage~:playableStreams),headline,positions)`;

const xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.setRequestHeader('Authorization', `Bearer ${access_token}`);
xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    const response = JSON.parse(xhr.responseText);
    console.log(response);
  }
}
xhr.send();

LinkedIn REST API provides a lot of functionality to get rich, professional user data, company information, messaging API, and more. These were just a few examples to get you started. Please visit the LinkedIn Developer Portal for more information about the LinkedIn REST API.

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