iyhunko/hash-generator-app

How to play with this app?

1. Run make build command
2. Start a worker to refresh token every interval: ./bin/refresh_hash_worker
   • interval = 5 seconds by default. Provide HASH_GENERATION_INTERVAL env variable to change the value( example: HASH_GENERATION_INTERVAL=5m ./bin/refresh_hash_worker )
   • we use a file to save cache(just for PoC, better storage should be used in real project)
3. Start HTTP API server: ./bin/http_api
   • default port is 8001
   • see possible env variables to configure HTTP server here: internal/config/config.go
4. Hit http://localhost:8001/hash URL to test response.
   • response example: {"hash":"11cdc662-38b6-40b7-b79c-17d6d0bb1749","generated_at":"2023-03-20T13:50:24.503731+02:00"}
5. Start GRPC API server: ./bin/grcp_api
   • default port is 8002
   • see possible env variables to configure GRPC server here: internal/config/config.go
6. Run GRPC client: ./bin/grcp_client
   • You will see next logs with info about success connection/response {"level":"info","timestamp":"2023-03-20T14:13:18.303726+02:00","message":"Starting GRPC api client"} {"level":"info","timestamp":"2023-03-20T14:13:18.321008+02:00","message":"Uuid: f88e70cb-493a-486f-bba8-be7c63522360, Time: 2023-03-20 14:13:14.324162 +0200 EET"}
   • see GRPC client details here: cmd/grpc_client/main.go
7. Check Makefile to see available commands(code test, checks, build, proto etc)

Mocking

Make sure you have "Gomock" installed:

`go get -u github.com/golang/mock/gomock`
`go install github.com/golang/mock/[email protected]`

Example of command to generate mock file:

`mockgen -source=./pkg/logger/logger.go -destination=./pkg/mock/logger.go -package=mock`