GoLeague

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This is a project with main purpose of learning Golang, gRPC, Redis, Docker and other technologies.

The application will be a complete Back-End for a web app with League Of Legends Data.

At first, only the API and Fetcher will be developed, but later a web app or mobile app can be developed.

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Services

• Fetcher

  • Queue for fetching data at a constant rate from the Riot API and filling the database, handling multiple constraints and cases to guarantee data integrity.
  • Logging to files that will be sent to a bucket.
  • gRPC endpoint for getting data needed on demand (For example, a player match list and it's data)
  • Shared Rate Limit between the On Demand and the Queue, with priority for the On Demand requests, creating a optimized use of the rate limits.

• API

  • Receives requests from a FrontEnd and get the data from the Database or the Fetcher.
  • gRPC client for force fetching requests on the Fetcher.
  • Multiple endpoints for data fetching.
  • InMemory cache for data that doesn't change often (Tierlists)

• Scheduler

  • Simple scheduler that runs on background, revalidating cache keys and recalculating matches average ratings.

• Redis

  • Shared cache for holding champion and item assets.
  • Cache layer for matches previews and tierlist data.

• PostgreSQL

  • Shared database.