I tried to generate the access token with Postman, and I'm running into issues.
Here's what I wrote in Postman:
URL: https://platform.ringcentral.com/restapi/oauth/token
Headers
Content-Type: application/x-www-form-urlencoded
Body
grant_type: urn:ietf:params:oauth:grant-type:jwt-bearer
assertion: JWT token generated in the console for all apps under my Organization
client-id: WaOUXvk0oXtdlR79ZvmEZt
client-secret: c7Hp7saR............
{
"error": "invalid_client",
"error_description": "Client authentication is required",
"errors": [
{
"errorCode": "OAU-123",
"message": "Client authentication is required"
}
]
}
Solved, I was missing the Authorization header ….
Authorization: Basic client_id:client_secret #encoded in Base64 format
I hope this helps someone!
