createIntegration
Creates a new integration with an external source provider. Repeating an identical request with the same clientToken returns the original integrationId, integrationArn, and createdAt. Token records are retained for eight hours after success or terminal failure, including after the integration is deleted; replaying a deleted integration's token does not recreate it. An identical request with a retained terminal failure returns the recorded error. Reusing a token with different parameters returns ValidationException. A fresh token starts a new create attempt; if the name is already owned by another integration, ConflictException includes that integration's identifier. An attempt still in progress may return ThrottlingException with retryAfterSeconds set to 1; retry with the same token and identical parameters. GitHub authorization codes are single use. Retry an unresolved attempt with its original token and unchanged parameters first. If the service reports a terminal failure, an expired attempt, or a successful token exchange whose integration could not be saved, restart GitHub authorization with a fresh token and authorization code. The service does not checkpoint provider results for recovery by another request.