How to access LinkedIn data using spring-social

Table of Contents

How to access LinkedIn data using spring-social and spring boot

How to access LinkedIn data using spring-social and spring boot

Introduction

Spring Social provides the capability which enables our application to interact with LinkedIn Rest API and get user data. Considering how popular social logins have become recently, it is a nice feature to have on your website.

Getting started

I would suggest you to first clone the Access Facebook Data Tutorial as it does have required page structure and dependencies

Add Maven Dependencies

Add the spring-social-google dependency


			org.springframework.social
			spring-social-linkedin
			1.0.0.RELEASE

org.springframework.social

spring-social-linkedin

1.0.0.RELEASE

Update the application.properties

Now update the application.properties with your secret and client key


spring.social.linkedin.app-id=771mrzk94hye1w
spring.social.linkedin.app-secret=iIJFgBf9lCb18zYe

spring.social.linkedin.app-id=771mrzk94hye1w

spring.social.linkedin.app-secret=iIJFgBf9lCb18zYe

Don’t miss : Step by Step tutorial on authorising user using Spring Social (Google, FaceBook and LinkedIn) and Spring Security

Add the HTML for LinkedIn

Under src/main/resources/templates/connect you should have facebookConnect.html and facebookConnected.html, if you have cloned/downloaded the spring tutorial properly.
Again replace facebook with linkedin in HTML and save them as linkedinConnected.html and linkedinConnect.html or copy them as shown below. Make sure the scope is properly defined in your request.


<input type="hidden" name="scope" value="r_basicprofile,r_emailaddress" />

linkedinConnect.html


<html>
	<head>
		<title>Hello LinkedIn</title>
	</head>
	<body>
		<h3>Connect to Linkedin</h3>
		
		<form action="/connect/linkedin" method="POST">
			<input type="hidden" name="scope" value="r_basicprofile,r_emailaddress" />
			<div class="formInfo">
				<p>You aren't connected to LinkedIn yet. Click the button to connect this application with your  account.</p>
			</div>
			<p><button type="submit">Connect to LinkedIn</button></p>
		</form>
	</body>
</html>

<html>

<head>

<title>Hello LinkedIn</title>

</head>

<body>

<h3>Connect to Linkedin</h3>

<p>You aren't connected to LinkedIn yet. Click the button to connect this application with your account.</p>

</div>

<p><button type="submit">Connect to LinkedIn</button></p>

</form>

</body>

</html>

linkedinConnected.html


<html>
	<head>
		<title>Hello Facebook</title>
	</head>
	<body>
		<h3>Connected to LinkedIn</h3>
		
		<p>
			You are now connected to your LinkedIn account.
			Click <a href="/linkedin">here</a> to see some entries from your LinkedIn feed.
		</p>		
	</body>
</html>

<html>

<head>

<title>Hello Facebook</title>

</head>

<body>

<h3>Connected to LinkedIn</h3>

<p>

You are now connected to your LinkedIn account.

Click <a href="/linkedin">here</a> to see some entries from your LinkedIn feed.

</p>

</body>

</html>

Add a @Controller for LinkedIn

We need to add a rest controller so it can handle LinkedIn authorization requests


@Controller
@RequestMapping("/linkedin")
public class LinkedInController {

    private LinkedIn linkedIn;
    private ConnectionRepository connectionRepository;

    public LinkedInController(LinkedIn linkedIn, ConnectionRepository connectionRepository) {
        this.linkedIn = linkedIn;
   
        this.connectionRepository = connectionRepository;
    }
    

    @GetMapping
    public String helloFacebook(Model model) {
        if (connectionRepository.findPrimaryConnection(LinkedIn.class) == null) {
            return "redirect:/connect/linkedin";
            
        }
        ProfileOperations user = linkedIn.profileOperations();
        System.out.println(user);
        model.addAttribute("linkedInProfile",linkedIn.profileOperations().getUserProfileFull());
        
    
        
        return "linkedin";
    } 
}

@Controller

@RequestMapping("/linkedin")

public class LinkedInController {

private LinkedIn linkedIn;

private ConnectionRepository connectionRepository;

public LinkedInController(LinkedIn linkedIn, ConnectionRepository connectionRepository) {

this.linkedIn = linkedIn;

this.connectionRepository = connectionRepository;

}

@GetMapping

public String helloFacebook(Model model) {

if (connectionRepository.findPrimaryConnection(LinkedIn.class) == null) {

return "redirect:/connect/linkedin";

}

ProfileOperations user = linkedIn.profileOperations();

System.out.println(user);

model.addAttribute("linkedInProfile",linkedIn.profileOperations().getUserProfileFull());

return "linkedin";

}

@RequestMapping(“/linkedin”), your application should run on localhost:port/linkedin to test this example

Add HTML to show user details

In src/main/resources add a file called “linkedin.html” at same level as “hello.html”


<html>
	<head>
		<title>Hello Facebook</title>
	</head>
	<body>
		<h3>Hello, <span th:text="${linkedInProfile.firstName}"></span><span th:text="${linkedInProfile.lastName}"></span></h3>
		
		<h4><span th:text="${linkedInProfile.emailAddress}"></span></h4>
		<h4><span th:text="${linkedInProfile.id}"></span></h4>
		<h4><span th:text="${linkedInProfile.location.country}"></span></h4>
		
	</body>
</html>