Exchange Scrapper

The goal for this project is to expose the Average/Min/Max of every BTC/EUR trades in the last hour using the Bitfinex API to fetch the data.

A periodic timer job was created to make sure the data is fetched every 10 seconds (even though this is configurable).

The application is ready to support multiple collectors besides Bitfinex. An example was made with Kraken API to illustrate it.

Running locally using dotnet cli

Requires C# .NET 7.0.

run dotnet run --project ExchangeScrapper

Running locally using Docker

Requires docker.

• Builder docker image: run docker build -t exchange-scrapper:local -f Dockerfile .
• Spin up container: run docker compose -f .\docker-compose-local.yml up

Testing the service

run dotnet test

Implementation

For the trade summary use case, execution flow is as follows:

sequenceDiagram
  participant application as Application
  participant bitfinex as Bitfinex
  participant kraken as Kraken
  participant frontend as Console
  
  application->>bitfinex: API Request
  bitfinex->>application: API Response
  application->>kraken: API Request (if feature enabled)
  kraken->>application: API Response
  application->>frontend: Display

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