CRUD REST API GOLANG GORM AND MYSQL
Description
This repository is a Software of Application with Golang, Mux, GORM (ORM) and MySQL.
Installation
Using Go 1.16 preferably.
DataBase
Using MySQL preferably.
!EYE Configure DB info through the create of file .env
Apps
Using Postman, Insomnia, Talend API Tester, etc.
Usage
$ git clone https://github.com/DanielArturoAlejoAlvarez/CRUD-REST-API-WITH-GOLANG-1.16-3-GORM-AND-MYSQL.git
[NAME APP]
$ go build
$ ./[name-app] [ENTER]
Follow the following steps and you're good to go! Important:
Coding
Config
...
var DB *gorm.DB
var err error
var DNS = "root:password@tcp(127.0.0.1:3306)/dbname?charset=utf8mb4&parseTime=True&loc=Local"
func InitialMigration() {
DB, err = gorm.Open(mysql.Open(DNS), &gorm.Config{})
if err != nil {
fmt.Println(err.Error())
panic("Can't connect to DB!")
}
DB.AutoMigrate(&User{})
}
...
Routes
...
func initializeRouter() {
r := mux.NewRouter()
r.HandleFunc("api/users", GetUsers).Methods("GET")
r.HandleFunc("api/users/{id}", GetUser).Methods("GET")
r.HandleFunc("api/users", CreateUser).Methods("POST")
r.HandleFunc("api/users/{id}", UpdateUser).Methods("PUT")
r.HandleFunc("api/users/{id}", DeleteUser).Methods("DELETE")
log.Fatal(http.ListenAndServe(":9000",
handlers.CORS(handlers.AllowedHeaders([]string{
"X-Requested-With",
"Content-Type",
"Authorization"}),
handlers.AllowedMethods([]string{
"GET",
"POST",
"PUT",
"DELETE",
"HEAD",
"OPTIONS"}),
handlers.AllowedOrigins([]string{"*"}))(r)))
}
...
Controllers
...
func GetUsers(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
var users []User
DB.Find(&users)
json.NewEncoder(w).Encode(users)
}
func GetUser(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
params := mux.Vars(r)
var user User
DB.First(&user, params["id"])
json.NewEncoder(w).Encode(user)
}
func CreateUser(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
var user User
json.NewDecoder(r.Body).Decode(&user)
DB.Create(&user)
json.NewEncoder(w).Encode(user)
}
func UpdateUser(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
params := mux.Vars(r)
var user User
DB.First(&user, params["id"])
json.NewDecoder(r.Body).Decode(&user)
DB.Save(&user)
json.NewEncoder(w).Encode(user)
}
func DeleteUser(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
params := mux.Vars(r)
var user User
DB.Delete(&user, params["id"])
json.NewEncoder(w).Encode(user)
}
...
Models
...
type User struct {
gorm.Model
DisplayName string `json:"displayname"`
Email string `json:"email"`
Username string `json:"username"`
Phone string `json:"phone"`
Address string `json:"address"`
Age int `json:"age"`
Avatar string `json:"avatar"`
Flag bool `json:"flag"`
}
...
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/DanielArturoAlejoAlvarez/CRUD-REST-API-WITH-GOLANG-1.16-3-GORM-AND-MYSQL. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
License
The gem is available as open source under the terms of the MIT License.
