Google Api, Node.js - invalid_grant Malformed auth code

Question

I\'m trying to use the google api on node.js, but I always have the following error:

invalid_grant
Malformed auth code

By searching on the

Answer 1

Here is my case:

The authorization code in the url hash fragment is being encoded by encodeURIComponent API, so if you pass this code to request the access token. It will throw an error:

{ "error": "invalid_grant", "error_description": "Malformed auth code." }

So I use decodeURIComponent to decode the authorization code.

decodeURIComponent('4%2F_QCXwy-PG5Ub_JTiL7ULaCVb6K-Jsv45c7TPqPsG2-sCPYMTseEtqHWcU_ynqWQJB3Vuw5Ad1etoWqNPBaGvGHY')

After decode, the authorization code is:

"4/_QCXwy-PG5Ub_JTiL7ULaCVb6K-Jsv45c7TPqPsG2-sCPYMTseEtqHWcU_ynqWQJB3Vuw5Ad1etoWqNPBaGvGHY"