FIWARE-Lab KeyRock Access Token Request error

Question

I'm testing the Authorization Code Grant protocol on the instance of KeyRock GE at FIWARE-Lab using DHC web client.

So far I have succeeded on implementing the Authorization Request, and I obtain the code to be used on the Access Token Request. The URL for the Authorization Request is the following (although not executed on DHC, but on a regular browser so I can introduce my user and password):

https://account.lab.fiware.org/oauth2/authorize/?response_type=code&client_id=2122&redirect_uri=http%3A%2F%2Flocalhost%2FCallback

I have checked that the client_id and the redirect_uri are both correct against the values related with my application at my account at FIWARE-Lab.

Executing the following request (can't post images, so I'll describe)

POST
https:// account.lab.fiware.org/oauth2/token?grant_type=authorization_code&code=<code>&redirect_uri=http%3A%2F%2Flocalhost%2FCallback -- <code> is the code obtained on the Auth. Request
Authorization: Basic <XXXX> --- <XXXX> is the result of base64(client_id+":"+client_secret)
Content-Type: application/x-www-form-urlencoded

...I get the following error message:

{
"error":{
"message": "create_access_token() takes exactly 3 arguments (2 given)",
"code": 400,
"title": "Bad Request"
}
}

I've checked the authorization is correct (Basic using the OAuth credentials from my application), and I'm using the same redirect_uri used at the previous Authorization Request, and the code obtained from it.

¿What is wrong?

P.S.: If I remove any or all of the query parameters, I still get the same error

Tania Petsouka Tania Petsouka · Accepted Answer · 2015-08-11T14:41:43

Don't pass the parameters in the url. Instead, add them to request's body as query string:

POST /oauth2/token HTTP/1.1
Host: account.lab.fiware.org
Content-Type: application/x-www-form-urlencoded
Authorization: Basic <XXXX> --- <XXXX>
Cache-Control: no-cache
Content-Type: application/x-www-form-urlencoded

grant_type=authorization_code&code=1234&redirect_uri=http%3A%2F%2Flocalhost%3A9000%2Fcodecallback.html

FIWARE-Lab KeyRock Access Token Request error

2 Answers