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main.go
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main.go
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package main
import (
"encoding/json"
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/gorilla/mux"
"github.com/jinzhu/gorm"
"github.com/joho/godotenv"
"log"
"net/http"
"os"
)
type (
User struct {
gorm.Model
Name string `json:"name"`
Email string `json:"email"`
}
)
var db *gorm.DB
func init() {
// env
godotenv.Load()
dbUser := os.Getenv("DB_USERNAME")
dbPass := os.Getenv("DB_PASSWORD")
dbName := os.Getenv("DB_DATABASE")
dbHost := os.Getenv("DB_HOST")
dbPort := os.Getenv("DB_PORT")
dbUri := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8&parseTime=True&loc=Local", dbUser, dbPass, dbHost, dbPort, dbName)
var err error
db, err = gorm.Open("mysql", dbUri)
if err != nil {
log.Fatal(err.Error())
}
db.Debug().AutoMigrate(&User{})
}
func handleRequests() {
router := mux.NewRouter()
router.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
fmt.Fprintf(writer, "Welcome!")
})
router.HandleFunc("/users", allUsers).Methods("GET")
router.HandleFunc("/users/{id}", oneUser).Methods("GET")
router.HandleFunc("/users", newUser).Methods("POST")
router.HandleFunc("/users/{id}", updateUser).Methods("PUT")
router.HandleFunc("/users/{id}", deleteUser).Methods("DELETE")
log.Fatal(http.ListenAndServe(":8080", router))
}
func allUsers(w http.ResponseWriter, r *http.Request) {
var users []User
db.Find(&users)
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(users)
}
func oneUser(w http.ResponseWriter, r *http.Request) {
id := mux.Vars(r)["id"]
var user User
db.First(&user, id)
w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(user)
}
func newUser(w http.ResponseWriter, r *http.Request) {
name := r.PostFormValue("name")
email := r.PostFormValue("email")
user := User{
Name: name,
Email: email,
}
db.Create(&user)
w.WriteHeader(http.StatusCreated)
fmt.Fprintf(w, "user created successfully")
}
func updateUser(w http.ResponseWriter, r *http.Request) {
var user User
id := mux.Vars(r)["id"]
db.Find(&user, id)
email := r.PostFormValue("email")
user.Email = email
db.Save(&user)
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "user updated successfully")
}
func deleteUser(w http.ResponseWriter, r *http.Request) {
var user User
id := mux.Vars(r)["id"]
db.Find(&user, id)
db.Delete(&user)
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "user deleted successfully")
}
func main() {
fmt.Println("Hello World!")
handleRequests()
}