I am using signpost to create event in google calendar. After crossing all oAuth flow and trying to add event i am getting follow error.
"error": {
"errors": [
{
"domain": "global",
"reason": "authError",
"message": "Invalid Credentials"
"locationType": "header",
"location": "Authorization"
}
],
"code": 401,
"message": "Invalid Credentials"
}
What could be the issue?