linkedin-oauth-helper

This is a helper script to handle LinkedIn OAuth. For a detailed, step-by-step guide, please refer to this article I wrote. If you found this repository useful, please consider giving it a star ⭐ on GitHub. This helps to promote the project and show your support.

How it works

The script check if there's a valid access token in a local json file. If it exists, it uses it to do an API call to get the corresponding user ID. If the API call is successful, it prints both: the user access token & ID &. If it fails, it starts the OAuth process by executing the following steps:

It builds the authorization url
It launches the default user's browser and redirect it to the previously built authorization url to handle the authorization process.
The user will have to log in &/or proceed by allowing access.
Once user proceeds, the script will handle the callback where authorization code is sent (using a minimalist express server).
Once the script gets the authorization code, it uses it to do 2 API requests: get an access token and the corresponding user ID. Once finished, it saves the access token to a local file, and prints the result to the browser & the console.

Requirements

Before using this script, make sure to copy the env.example file to .env. Once you've done that, you need to create a LinkedIn app and get the client id and secret, and then update the .env file with these variables. You can do it here: https://www.linkedin.com/developer/apps

Note: please make sure to have the same REDIRECT_URI value configured in both LinkedIn app's page and this script

Installation

Execute the following command to install the required dependencies: npm install

Usage

Simply execute the following command: node index.js

Output

Once the script is finished, you should see the following output:

Console:

{
linkedInId: '***.....',
linkedInAccessToken: '*************************.....'
}

Browser:

Your can now close this window. :-)
linkedInId	linkedInAccessToken
***.....  	*************************.....

Customization:

You can customize the redirect url in the .env file
You can customize the file where the access token is saved in the .env file

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