all configuration can can be found .env. for simplicity, I only configure csv db wit connection string but the services can be extract to more db ( need to add username password etc to config ) the connection string in the .env is set for running in docker if one want to run the services without docker container need to change the connection string tio full path of the cvs db now locate here

can go build and go run main just need to change the db connection string to full path

or

can run

# Build the service

docker-compose build
# Run the service
docker-compose up web

the Dockerfile is multi-stage Dockerfile and can be run directly by docker commend

unit test can be run

# By docker / docker-compose
docker-compose up test

# locally 
go test ./... -v

Because of time constraints I only did unit test for one package in this service :(

working query with ip that persist on this small db v1/find-country?ip=1.0.0.255