post https://api.operto.com/access_token
Authentication through the use of OAuth 2.0 Client Credentials Grant. API-Key is the client_id and API-Secret is the client_secret. Scope is external-partner-api and the grant_type is client_credentials. Upon successful request you will receive a JWT Bearer token to be used in subsequent API endpoint calls, the token has an expiry of 3600 minutes / 1 hour.