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Example code of globules-io/linkedin-php-sdk

Informations about the package linkedin-php-sdk

LinkedIn PHP SDK

Installation

You will need at least PHP 7.4. Compatible with PHP 8.x

Use composer package manager to install the lastest version of the package:

Or add this package as dependency to composer.json.

Get Started

Before you will get started, play visit to LinkedIn API Documentation. This will save you a lot of time and prevent some silly questions. To start working with LinkedIn API, you will need to get application client id and secret.

Go to LinkedIn Developers portal and create new application in section My Apps. Once your app has been approved, you will get a ClientId and ClientSecret, that you will use later.

LinkedIn Restrictions

The scopes or permissions aren't available right away when you register an application with LinkedIn. When you first create your app in the developer portal, you only have access to the w_member_social scope. You can start developing but the token you obtain at this stage will have no refresh information. Then you need to request access to the Marketing Developer Platform which will give you 2 additionals scopes, r_emailaddress, r_liteprofile Once your request has been approved, you will get access to all the remaining scopes and your token will have refresh information.

Bootstrapping autoloader and instantiating a client

Getting local redirect URL

To start linking process you have to setup redirect url. You can set your own or use current one. SDK provides you a getRedirectUrl() helper for your convenience:

We recommend you to have it stored during the linking session because you will need to use it when you will be getting access token.

Setting local redirect URL

Set a custom redirect url use:

Getting LinkedIn redirect URL

In order of performing OAUTH 2.0 flow, you should get LinkedIn login URL. During this procedure you have to define scope of requested permissions.

You can read more about Linkedin Api scopes here.

Use Scope enum class to get scope names. To get redirect url to LinkedIn, use the following approach:

Now you can take user to LinkedIn. You can use link or rely on Location HTTP header.

Getting Access Token

To get access token use (don't forget to set redirect url)

This method returns object of LinkedIn\AccessToken class. You can store this token in the file like this:

This way of storing tokens is not recommended due to security concerns and used for demonstration purpose. Please, ensure that tokens are stored securely.

Setting Access Token

You can use method setAccessToken() for the LinkedIn\Client class to set token stored as string. You have to pass instance of LinkedIn\AccessToken to this method.

Renewing Tokens

LinkedIn tokens expire after 60 days but you can renew your access token by using the refresh token. Tokens can be then refreshed for 365 days, after which the end-user must re-auth.

Performing API calls

All API calls can be called through simple method:

There are 3 helper methods:

Examples

Perform api call to get profile information
List companies where you are an admin
Get Company page profile
Setup custom API request headers

Change different headers sent to LinkedIn API.

Change default API root

Some private API access there.

All versions of linkedin-php-sdk with dependencies

PHP Build Version
Package Version
Requires php Version ^7.4 || ^8.0
ext-curl Version *
guzzlehttp/guzzle Version ^7.4.2
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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