Reviewed by Aditya Kumar ¡ Last reviewed 2026-03-24
Why: APIs are common sources (SaaS, internal services); Airflow needs reliable, observable integration. Architectural logic: HttpOperator/SimpleHttpOperator for simple GET/POSTâlow code. Custom PythonOperator with requests/httpx for pagination, retries, OAuth. Why retries: APIs...
Red Flag: Hardcoded API keys or no retry logic. Pro-Move: 'We use Connections for OAuth, exponential backoff for 429sâreduced API-triggered failures by 90%.'
Why: APIs are common sources (SaaS, internal services); Airflow needs reliable, observable integration. Architectural logic: HttpOperator/SimpleHttpOperator for simple GET/POSTâlow code. Custom PythonOperator with requests/httpx for pagination, retries, OAuth. Why retries: APIs fail transiently; exponential backoff reduces 429/503 impact. Credentials in Connectionsânever hardcode; enables rotation. XCom for passing data between tasksâbeware size limits (48KB default). Scalability: Avoid polling in a loop; use sensor + async patterns. Cost: Rate limitsâbatching and backoff prevent ban; pagination prevents memory bloat. Production: Log response status; idempotency for writes; handle partial failures.
Red Flag: Hardcoded API keys or no retry logic. Pro-Move: 'We use Connections for OAuth, exponential backoff for 429sâreduced API-triggered failures by 90%.'
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