Why am I getting authorization code is not in a recognised format? - oauth

Question

Hello everyone I need help please. This is about Seatgeek Oauth request.
In Postman, entered the required fields to get access token.However I am getting this error below.
{
"status": 400,
"message": "Oauth code invalid",
"errors": [
{
"message": "Oauth code invalid",
"short_message": "Code invalid",
"verbose_message": "The authorization code provided was not in a recognized format.",
"hint_message": "Switch code verifier",
"category": null,
"parameter": null,
"code": 40322
}
],
"meta": {
"status": 400
}
}
Now let me add the endpoints I used
Base endpoint: https://api.seatgeek.com/2/oauth/access_token
Params: client_id = xxxxxxxxx
Params: scope = offline_access,read-user-first-name,read-user-email,read-user-phone,view-soundersfc-crm-id
Params:grant_type = authorization_code
Body:x-www-form-urlencoded:
client_secret = xxxxxxxxxxx
code = “ ”
The full url will be something like this : https://api.seatgeek.com/2/oauth/access_token?client_id=xxxxxxxxx&scope=offline_access,read-user-first-name,read-user-email,read-user-phone,view-soundersfc-crm-id&grant_type=authorization_code
Please help me identify this code error. Any help will be highly appreciated
here is the Seatgeek Oauth documentation.
https://partners.seatgeek.com/enterprise-client-integration/oauth

Answer 1

SeatGeek API OAuth documentation not accuracy. you need a little change a scope.
(just use offline_access)
#1 Using this URL from Browser
https://seatgeek.com/oauth2?scope=offline_access&client_id=MzA...zcy
#2 You can get the code in URL address of browser
It will return your registered redirect URL and code
Copy that code and call POST to get token by curl
#3 Get token
curl -X "POST" "https://api.seatgeek.com/2/oauth/access_token" \
-H 'Content-Type: application/x-www-form-urlencoded; charset=utf-8' \
--data-urlencode "code={received_code_from_#2}" \
--data-urlencode "client_id={your_client_id}" \
--data-urlencode "client_secret={your_client_secret}" \
--data-urlencode "grant_type=authorization_code"
Note #1
you can get the client id /secret from developer portal
Note #2
code is JWT format. The payload is this content.
I decoded from jwt.io