I have been implementing the Google web server OAuth flow, but when I attempted to exchange the authorization code with access token, it always complains "invalid_code".
Here is the issue:
Step 1:
Redirect one of our pages to 'https://accounts.google.com/o/oauth2/auth?scope=email&redirect_uri=https%3A%2F%2Fmyurl.com%2Fcallback&response_type=code&client_id=some_client_id'
Step 2:
The redirection happens and google would redirect to our url
https://myurl.com/callback?code=somecode
Step 3:
curl -X POST –data "code=somecode&client_id=some_client_id&some_client_secret=some_client_secret&redirect_uri=https://myurl.com/callback&grant_type=authorization_code" https://accounts.google.com/o/oauth2/token -v –trace-ascii /dev/stout
The response comes back:
HTTP 400 Bad request
{
"error" : "invalid_grant",
"error_description" : "Invalid code."
}
Can someone help me with this issue? Thanks!
Best Answer
The life span of authorization code is only 10 mins,and can only be used one time. So do these checks: