Linkedin API access token generation error

Question

i am trying to generate access token to collect linkedin data. I followed the instructions provided in the linkedin API documentaion. I created an app in developers page and got

Answer 1

I had the same problem, in my case I was using different redirect_uri for authorization and for access token. I had "proxy": "localhost:3001" in my package.json, and it overriden my request_uri.

So my suggestion: make sure the hosts and redirect_uri are all the same for two requests (both backend and server side).