Basic Docker with Golang (iris web framework)

docker-compose.yml

version: "3"

services: 
  go-dev:
    container_name: go-dev
    build: ./
    volumes: 
      - ./src:/usr/src/myapp
    stdin_open: true
    tty: true

Dockerfile

FROM golang:latest

RUN apt-get update && apt-get install -y vim

WORKDIR /usr/src/myapp

ENV GOPATH=/usr
ENV GO111MODULE=on

main.go

package main

import (
	"github.com/kataras/iris"
	"github.com/thoas/go-funk"
)

type AccountRequest struct {
	id    int
	FName string
	LName string
}

var accountList = []AccountRequest{}

func main() {

	app := iris.Default()
	app.Get("/users", GetAllUser)
	app.Get("/user/{id:int}", GetUserByID)
	app.Post("/user", CreateUser)
	app.Run(iris.Addr(":8080"))
}

func GetAllUser(ctx iris.Context) {
	ctx.JSON(iris.Map{"data": accountList})
}

func GetUserByID(ctx iris.Context) {
	id := ctx.Params().GetIntDefault("id", 0)
	user := funk.Find(accountList, func(a AccountRequest) bool {
		return id == a.id
	})
	if user == nil {
		ctx.JSON(iris.Map{"error": "user not found!"})
		return
	}
	ctx.JSON(user)
}

func CreateUser(ctx iris.Context) {
	var userInput AccountRequest
	ctx.ReadJSON(&userInput)
	userInput.id = len(accountList) + 1
	accountList = append(accountList, userInput)
	user := accountList[len(accountList)-1]
	ctx.JSON(iris.Map{
		"status": "success",
		"ID":     user.id,
	})
}