Simple Go Rest App

main.go

package main

import (
	"fmt"
	"encoding/json"
	"github.com/gorilla/mux"
	"log"
	"net/http"
)

// The person Type (more like an object)
type Person struct {
	Id        string   `json:"id,omitempty"`
	FirstName string   `json:"firstName,omitempty"`
	LastName  string   `json:"lastName,omitempty"`
	Address   *Address `json:"address,omitempty"`
}
type Address struct {
	City  string `json:"city,omitempty"`
	State string `json:"state,omitempty"`
}

var people []Person

// Display all from the people var
func GetPeople(w http.ResponseWriter, r *http.Request) {
	json.NewEncoder(w).Encode(people)
}

// Display a single data
func GetPerson(w http.ResponseWriter, r *http.Request) {
	params := mux.Vars(r)
	for _, item := range people {
		if item.Id == params["id"] {
			json.NewEncoder(w).Encode(item)
			return
		}
	}
	json.NewEncoder(w).Encode(&Person{})
}

// create a new item
func CreatePerson(w http.ResponseWriter, r *http.Request) {
	params := mux.Vars(r)
	var person Person
	_ = json.NewDecoder(r.Body).Decode(&person)
	person.Id = params["id"]
	people = append(people, person)
	json.NewEncoder(w).Encode(people)
}

// Delete an item
func DeletePerson(w http.ResponseWriter, r *http.Request) {
	params := mux.Vars(r)
	for index, item := range people {
		if item.Id == params["id"] {
			people = append(people[:index], people[index+1:]...)
			break
		}
		json.NewEncoder(w).Encode(people)
	}
}

// main function to boot up everything
func main() {
	fmt.Println("Starting web server...")

	router := mux.NewRouter()

	fmt.Println("Loading data models...")

	people = append(people, Person{Id: "1", FirstName: "Bob", LastName: "Rogers", Address: &Address{City: "Los Angeles", State: "CA"}})
	people = append(people, Person{Id: "2", FirstName: "Ron", LastName: "Williams", Address: &Address{City: "Phoenix", State: "AZ"}})

	fmt.Println("Loading routes...")

	router.HandleFunc("/people", GetPeople).Methods("GET")
	router.HandleFunc("/people/{id}", GetPerson).Methods("GET")
	router.HandleFunc("/people/{id}", CreatePerson).Methods("POST")
	router.HandleFunc("/people/{id}", DeletePerson).Methods("DELETE")

	fmt.Println("Ready! Listening for requests...")
	log.Fatal(http.ListenAndServe(":8000", router))
}