External Ticket System Integration
Async integration layer for airport, route, and availability data
A scalable asynchronous API integration for airports, routes, flight schedules, and availability data, designed with reusable extractors, transformers, typed schemas, and reliable external API handling.
Technology stack
Problem
The product needed live schedule and availability data from an external ticketing provider, but the upstream API was slow, inconsistently shaped, and not resilient to failure on its own.
Solution
Built a typed integration layer with dedicated extractor and transformer stages, so upstream responses are normalized into stable internal schemas regardless of provider quirks.
Technical contribution
Designed the async client architecture, the Pydantic schema contracts between extraction and transformation stages, and the retry and error-handling strategy for upstream failures.
Architecture
Async httpx clients feed a pipeline of extractors and transformers, with Pydantic models enforcing typed contracts at every stage before data reaches the application layer.
Performance considerations
Concurrent async requests and connection pooling reduce end-to-end fetch time for multi-route queries compared to sequential calls.
Security considerations
Upstream credentials are isolated to the integration service, with strict timeouts and circuit-breaking to prevent upstream failures from cascading.
Deployment model
Runs as a containerized service with independent scaling from the main application, deployed via Docker.
Outcome
Reliable, normalized flight and availability data delivered to downstream services, with resilient handling of upstream instability.