github.com/moosecanswim/go-contacts

Golang contacs development

Prerequisites

1. Docker

Tutorial

Based on tutorial located here https://medium.com/@adigunhammedolalekan/build-and-deploy-a-secure-rest-api-with-go-postgresql-jwt-and-gorm-6fadf3da505b

Basic (static development) server

To run the basic server defined run defined in main.go use the following command:

go run main.go

Go to http://localhost:10000/ You will see the following:

<p> W </>lcome to the HomePage </p>

That means its up and running on port 10000. This is defined in main.go'shomePage() function.

Dynamic Development

While in the same directory:

- To start this use `docker-compose up`. That will show the logs/ output from println. To run in backgrount append `-d` to the above command.

- To STOP run `docker-compose down`

To make this a dynamic development process i used go-watcher and docker-compose to create an isolated environment.

services:
  contacts:
    image: canthefason/go-watcher:latest
    container_name: 'contacts'
    ports:
      - '8080:10000'
    environment:
      STAGE: 'docker-compose-land'
    volumes:
      - ~/go/src/github.com/moosecanswim/go-contacts:/go/src/github.com/moosecanswim/go-contacts
    command: watcher -run github.com/moosecanswim/go-contacts --config github.com/moosecanswim/go-contacts/settings.toml --watch github.com/moosecanswim/go-contacts

This docker-compose definition uses the canthefason/go-watcher image and volume mounts the directory that can change. This means that any changes located in $PWD/go-contacts directory will result in the docker container being rebuilt.

To use this environment run docker-compose up. This will spin up the containers defined in docker-compose.yaml. Check that it is working at localhostt:8080.

You might be wondering why this has a different port than in the Basic Development section. Well, in the contacts service we map the 8080 port on the host (your computers) port to the containers 10000 port.

Define the Contacts strut and gloval variable

Self explanatory

// Define struct of contacts
type Contact struct {
	First string `json:"first"`
	Last  string `json:"last'`
	Email string `"json: email"`
}

// Declare global Contacts array (simulation database)
var Contacts []Contact

To create an entry follow this (node the capitalized parts) : Contact{First: "Test FirstName:", Last: "Test LastName:", Email: "Test Email:"},

Update the main.go main() do define two struct entries: kyle and dan