GoLang Restful Api With Source Code Given

Here is the compete source code for GoLang Restful Api. This api doesnt' use mysql. I have created a new version of this api using Mysql.

GoLang Mysql Version Task Management App

GoLang Mysql Gin Framework CRUD Api

Nodejs Mysql Version Task Management App

Task Management Nodej Api Crud Operations

package main

import (
	"database/sql"
	"encoding/json"
	"fmt"
	"log"
	"math/rand"
	"net/http"
	"strconv"
	"time"

	_ "github.com/go-sql-driver/mysql"
	"github.com/gorilla/mux"
)

type Tasks struct {
	ID         string `json:"id"`
	TaskName   string `json:"task_name"`
	TaskDetail string `json:"task_detail"`
	Date       string `json:"date"`
}

var tasks []Tasks

func updateTask(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	params := mux.Vars(r)
	flag := false
	for index, item := range tasks {
		if item.ID == params["id"] { //0, 1,  2, 3, 4
			tasks = append(tasks[:index], tasks[index+1:]...)
			var task Tasks
			_ = json.NewDecoder(r.Body).Decode(&task)
			task.ID = params["id"]
			currentTime := time.Now().Format("01-02-2006")
			task.Date = currentTime
			tasks = append(tasks, task)
			flag = true
			json.NewEncoder(w).Encode(task)
			return
		}
	}
	if flag == false {
		json.NewEncoder(w).Encode(map[string]string{"status": "Error"})
	}
}
func deleteTask(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	params := mux.Vars(r)
	flag := false
	for index, item := range tasks {
		if item.ID == params["id"] { //0, 1,  2, 3, 4
			tasks = append(tasks[:index], tasks[index+1:]...)
			flag = true
			json.NewEncoder(w).Encode(map[string]string{"status": "Success"})
			return
		}
	}
	if flag == false {
		json.NewEncoder(w).Encode(map[string]string{"status": "Error"})
	}
}

func createTask(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	var task Tasks
	_ = json.NewDecoder(r.Body).Decode(&task)
	task.ID = strconv.Itoa(rand.Intn(1000))
	currentTime := time.Now().Format("01-02-2006")
	task.Date = currentTime
	tasks = append(tasks, task)
	json.NewEncoder(w).Encode(task)
}

func getTask(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	params := mux.Vars(r)
	flag := false
	for i := 0; i < len(tasks); i++ {
		if params["id"] == tasks[i].ID {
			json.NewEncoder(w).Encode(tasks[i])
			flag = true
			break
		}
	}
	if flag == false {
		json.NewEncoder(w).Encode(map[string]string{"status": "Error"})
	}
}

func getTasks(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-type", "application/json")
	json.NewEncoder(w).Encode(tasks)
}

func homePage(w http.ResponseWriter, r *http.Request) {
	json.NewEncoder(w).Encode("Home Page")
}

func handleRoute() {
	route := mux.NewRouter()
	route.HandleFunc("/", homePage).Methods("GET")
	route.HandleFunc("/gettasks", getTasks).Methods("GET")
	route.HandleFunc("/gettask/", getTask).Queries("id", "{id}").Methods("GET")
	route.HandleFunc("/create", createTask).Methods("POST")
	route.HandleFunc("/delete/", deleteTask).Queries("id", "{id}").Methods("DELETE")
	route.HandleFunc("/update/", updateTask).Queries("id", "{id}").Methods("PUT")

	log.Fatal(http.ListenAndServe(":8082", route))

}
func allTasks() {
	task := Tasks{
		ID:         "1",
		TaskName:   "Try harder",
		TaskDetail: "why not do this",
		Date:       "2020-05-10"}
	task1 := Tasks{
		ID:         "2",
		TaskName:   "Try smarter",
		TaskDetail: "why not do this",
		Date:       "2020-05-11"}

	tasks = append(tasks, task)
	tasks = append(tasks, task1)
	fmt.Println("Got all the task")

}

func main() {

	allTasks()
	handleRoute()
	fmt.Println("Hello there")

}

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