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Dev.to
7/19/2026
The original title is "Building a Self-Healing GitHub Trending API in One Day"

The original title is "Building a Self-Healing GitHub Trending API in One Day"

Original: Building a Self-Healing GitHub Trending API in One Day

Short summary

The author built Hydra, a self-healing GitHub Trending API that aggregates data from four sources to avoid single points of failure. It stores 15-minute snapshots in Postgres via Celery, enabling historical analytics endpoints the official GitHub page doesn't offer. The article covers architecture decisions, a debugging lesson about lru_cache and Pydantic incompatibility, and deployment on a single 6GB VPS.

  • Hydra is a multi-source GitHub Trending API designed for resilience against outages
  • Stores 15-minute snapshots in Postgres for historical analytics
  • Includes a practical debugging lesson on lru_cache vs Pydantic hashability

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