@muneebahmad487 if you are trying to interact with LinkedIn from laravel via its api, all you’ll be doing is making post requests with the relevant payload and then relating the response back to other parts of your application.
You don’t need anything special in laravel for this - just use Laravel’s HTTP client which is a wrapper around Guzzle, See https://laravel.com/docs/8.x/http-client
For specific api details for LinkedIn check https://docs.microsoft.com/en-gb/linkedin/