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routes.go
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/
routes.go
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package main
import (
"database/sql"
"encoding/json"
"net/http"
"strconv"
"github.com/gorilla/mux"
)
/******************************
* getUser (GET, /user/{id})
*******************************/
func (a *App) getUser(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid user ID")
return
}
u := user{ID: id}
if err := u.getUser(a.DB); err != nil {
switch err {
case sql.ErrNoRows:
respondWithError(w, http.StatusNotFound, "User not found")
default:
respondWithError(w, http.StatusInternalServerError, err.Error())
}
return
}
respondWithJSON(w, http.StatusOK, u)
}
/******************************
* getUsers (GET, /users)
*******************************/
func (a *App) getUsers(w http.ResponseWriter, r *http.Request) {
count, _ := strconv.Atoi(r.FormValue("count"))
start, _ := strconv.Atoi(r.FormValue("start"))
if count > 10 || count < 1 {
count = 10
}
if start < 0 {
start = 0
}
products, err := getUsers(a.DB, start, count)
if err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, products)
}
/******************************
* createUser (POST, /user)
*******************************/
func (a *App) createUser(w http.ResponseWriter, r *http.Request) {
var u user
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&u); err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid request payload")
return
}
defer r.Body.Close()
if err := u.createUser(a.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusCreated, u)
}
/******************************
* updateUser (PUT, /users/{id})
*******************************/
func (a *App) updateUser(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid user ID")
return
}
var u user
decoder := json.NewDecoder(r.Body)
if err := decoder.Decode(&u); err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid resquest payload")
return
}
defer r.Body.Close()
u.ID = id
if err := u.updateUser(a.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, u)
}
/******************************
* deleteUser (DELETE, /user/{id})
*******************************/
func (a *App) deleteUser(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
id, err := strconv.Atoi(vars["id"])
if err != nil {
respondWithError(w, http.StatusBadRequest, "Invalid User ID")
return
}
u := user{ID: id}
if err := u.deleteUser(a.DB); err != nil {
respondWithError(w, http.StatusInternalServerError, err.Error())
return
}
respondWithJSON(w, http.StatusOK, map[string]string{"result": "success"})
}