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 CURD 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")
}
