microservices-with-golang

A simple microservice in go with postgres as database

Pre-requisites (for mac OS ventura)

• Install httpie (https://httpie.org/) for testing the API
  • brew install httpie
• Install docker (https://docs.docker.com/docker-for-mac/install/)
  • brew cask install docker
• VScode with Go extension (https://code.visualstudio.com/docs/languages/go)
  • brew cask install visual-studio-code
• Install golang (https://golang.org/doc/install)
  • brew install go

Use getting started for creating postgres container

• Create a dir in your home folder called data-postgres-go under docker-vols
  • mkdir -p ~/docker-vols/data-postgres-go
• Create a postgres container

  docker run -d --rm \
      --name local-pg \
      -e POSTGRES_PASSWORD=postgres \
      -p 5432:5432 \
      -e PGDATA=/var/lib/postgresql/data/pgdata \
      -v /Users/<user-name>/docker-vols/data-postgres-go:/var/lib/postgresql/data \
  postgres
  

• Login via psql
  • docker exec -it local-pg psql -U postgres
• Create database schema via schema.sql
  • psql -U postgres -f schema.sql
• Insert data to the database via data.sql
  • psql -U postgres -f data.sql

Run the microservice

• To start the server
  • go run main.go
• To check everything is working fine
  • http :8080/readiness
  • http :8080/liveness
• Expected output

  HTTP/1.1 200 OK
  Content-Length: 16
  Content-Type: application/json; charset=UTF-8
  Date: Tue, 22 Aug 2023 11:30:52 GMT
  
  {
      "status": "OK"
  }