API Access Token error - invalid_grant

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Dan Belknap

June 29, 2016 21:07

I am trying to generate an access token to use the API. I have what seems to be a valid JWT, but the token request returns an error.

Header:

{
  "typ": "JWT",
  "alg": "HS256"
}

Payload:

{
  "iss": "<my client key>",
  "aud": "https://app.iformbuilder.com/exzact/api/oauth/token",
  "iat": 1467226280,
  "exp": 1467226310
}

The signature and overall token checked out using the jwt.io debugger.

I've also tried url-encoding and base64 encoding the grant_type value with no luck.

The response is status 400, {"error":"invalid_grant"}

I'm working from php using curl if that helps with suggestions.

0

• 

  Mitchell Maling July 05, 2016 19:37

  Try re-generating your IAT and EXP. Your EXP is set to expire 30 seconds after IAT. Instead bump that time up to 5 minutes and it should work.

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