400 Error when attempting to retrieve authenticated user data

Question

I am attempting to use the /me API to retrieve an authenticated user's details but I am receiving a 400 error.

I am able to complete the OAuth2 dance and have been able to capture the access token and expire value, but when I then go on to send my request to https://api.stackexchange.com/2.0/me?site=stackoverflow (including access token) it gives me a 400 error.

Here is what I am logging if it's of any use:

GET request for "https://api.stackexchange.com/2.0/me?site=stackoverflow" resulted in 400 (Bad Request); invoking error handler
HttpClientErrorException while completing connection: 400 Bad Request
Response body: ?

Is there anything I am missing? other than just sending the access token to the above URL is there anything else I need to do?

Answer 1

You need to pass your request key as well.

I'm not sure what you're using that isn't giving you the error message back, but if you had captured it you would have seen it said something like:

{
  "error_id":405,
  "error_name":"key_required","
  error_message":"`key` is required when `access_token` is passed."
}