Get user profile using Oauth 2.0 from LinkedIn API

Question

I want to implement "sign up using LinkedIn" functionality ,I followed this document and stuck at point b with this error instead of getting access token. https://developer.linkedin.com/documents/authentication

{
    "error": "invalid_request",
    "error_description": "missing required parameters, includes an invalid parameter value, parameter more then once. : client_id"
}

I want to fill user basic information in registration form e.g. firstname,lastname,email etc. I dont want to use javascript API,and need to go with REST API of linkedIn ,

Could you share what your request looks like? What are the parameters that you pass? — divyanshm
to fetch user login prompt of linked in;this will give me code value that will be used to get access token : linkedin.com/uas/oauth2/… — Hardik Bhalani
No, i was talking about your HTTP request that you sent. It is possible that you might have constructed your http request incorrectly which is causing this error. — divyanshm
not getting you by HTTP request,I had only sent these two requests, 1st request is simple redirect and second one i executed with postman client for testing service using chrome — Hardik Bhalani

user3099761 user3099761 · Accepted Answer · 2015-08-11T18:35:31

This return a json file with the user info: https://api.linkedin.com/v1/people/~?oauth2_access_token=value&format=json

For a specify value: https://api.linkedin.com/v1/people/~:(firstName,lastName,picture-url)?oauth2_access_token=value&format=json

Get user profile using Oauth 2.0 from LinkedIn API

2 Answers