Exchange authorization code, client credentials, or refresh token for access token
OAuth 2.0 grant type
client_credentials, authorization_code, refresh_token Space-separated list of requested scopes (for client_credentials)
"admin"
Authorization code (for authorization_code flow)
Redirect URI (for authorization_code flow)
PKCE code verifier (for authorization_code flow)
Refresh token (for refresh_token flow)
OAuth client ID (if not using HTTP Basic auth)
OAuth client secret (if not using HTTP Basic auth)