Linkedin OAuth2 authorization code error

Question

I´m trying to connect via Linkedin Auth2 from a java web application:

1. Added my own app in linkedin.
2. Generate the authorization URL: https://www.linkedin.c

Answer 1

I too got bugged with this issue for long time. Please keep few things in mind which I did and eventually sorted it out.

1. Hit the api to get authorization code by using get request.
2. The authorization code has a life span of about 20 seconds, so its difficult to manually copy the code from the url and make a request for token access. You should do it pro-grammatically.
3. Make a post request for getting access token.
4. Most Important: Old linkedin applications that I had created was not working and giving the above error. Create a new linkedin application and try. Doing this worked for me.

I assume that all the other parameters like client_id, secret, redirect_uri are correct.

please try and let us know.

Thanks.

Answer 2

If You Are Sending a Request For Access Token it must be POST Request

Refer the OAuth Documentation

I actually Copied the Whole URL From My Eclipse Console To URL It is Still Valid

In Your Case The Problem is with URL Encoding As HanZ said . You Have to Encode Your URL For Post Request.

Answer 3

The value of your redirect_uri parameter must be URL-encoded, so at 6. do:

 https://www.linkedin.com/uas/oauth2/accessToken?grant_type=authorization_code&code=YYY&redirect_uri=http%3A%2F%2Flocalhost%3A9090%2FSpringMVC%2Ftoken.htm&client_id=XXX&client_secret=ZZZ

and it need not be sent as a POST but as a GET.