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Commit 58aa88c

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Hamed Naeemaei
committed
Initialize http mini project
1 parent 80c7087 commit 58aa88c

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8 files changed

+238
-0
lines changed

8 files changed

+238
-0
lines changed

‎17-Http/07-MiniProject/database/db.go

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package db
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import "http-mini-project/models"
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// set up a database dummy
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var (
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MovieDb = make(map[string]models.Movie)
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)

‎17-Http/07-MiniProject/go.mod

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module http-mini-project
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go 1.18

‎17-Http/07-MiniProject/handlers/movie.go

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package handlers
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import (
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"encoding/json"
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db "http-mini-project/database"
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"http-mini-project/models"
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"http-mini-project/utils"
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"net/http"
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)
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type MovieHandler struct {
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}
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var Users = map[string]models.Movie{}
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func (u *MovieHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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switch {
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case r.Method == http.MethodGet && len(r.URL.Query().Get("id")) > 0:
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GetMovie(w, r)
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return
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case r.Method == http.MethodGet && len(r.URL.Query().Get("id")) == 0:
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GetMovies(w, r)
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return
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case r.Method == http.MethodPost:
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AddMovie(w, r)
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return
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case r.Method == http.MethodDelete:
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DeleteMovie(w, r)
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return
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}
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}
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func GetMovies(w http.ResponseWriter, req *http.Request) {
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if req.Method != "GET" {
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utils.SetResult(w, http.StatusMethodNotAllowed, nil, utils.ApiError{Id: "httpMethod", Message: "Not allowed"})
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return
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}
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var movies []models.Movie
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for _, movie := range db.MovieDb {
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movies = append(movies, movie)
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}
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// parse the movie data into json format
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moviesJSON, err := json.Marshal(&movies)
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if err != nil {
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utils.SetResult(w, http.StatusInternalServerError, nil, utils.ApiError{Id: "jsonMarshal", Message: "Error parsing the movie data" + err.Error()})
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return
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}
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utils.SetResult(w, http.StatusOK, moviesJSON, nil)
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}
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func GetMovie(w http.ResponseWriter, req *http.Request) {
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if req.Method != "GET" {
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utils.SetResult(w, http.StatusMethodNotAllowed, nil, utils.ApiError{Id: "httpMethod", Message: "Not allowed"})
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return
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}
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if _, ok := req.URL.Query()["id"]; !ok {
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utils.SetResult(w, http.StatusBadRequest, nil, utils.ApiError{Id: "QueryStringMissed", Message: "This method requires the movie id"})
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return
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}
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id := req.URL.Query()["id"][0]
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movie, ok := db.MovieDb[id]
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if !ok {
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utils.SetResult(w, http.StatusNotFound, nil, nil)
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return
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}
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// parse the movie data into json format
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movieJSON, err := json.Marshal(&movie)
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if err != nil {
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utils.SetResult(w, http.StatusInternalServerError, nil, utils.ApiError{Id: "jsonMarshal", Message: "Error parsing the movie data" + err.Error()})
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return
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}
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utils.SetResult(w, http.StatusOK, movieJSON, nil)
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}
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func AddMovie(w http.ResponseWriter, req *http.Request) {
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if req.Method != "POST" {
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utils.SetResult(w, http.StatusMethodNotAllowed, nil, utils.ApiError{Id: "httpMethod", Message: "Not allowed"})
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return
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}
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var movie models.Movie
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payload := req.Body
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defer req.Body.Close()
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// parse the movie data into json format
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err := json.NewDecoder(payload).Decode(&movie)
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if err != nil {
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utils.SetResult(w, http.StatusInternalServerError, nil, utils.ApiError{Id: "jsonMarshal", Message: "Error parsing the movie data" + err.Error()})
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return
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}
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db.MovieDb[movie.ID] = movie
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utils.SetResult(w, http.StatusCreated, nil, nil)
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}
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func DeleteMovie(w http.ResponseWriter, req *http.Request) {
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if req.Method != "DELETE" {
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utils.SetResult(w, http.StatusMethodNotAllowed, nil, utils.ApiError{Id: "httpMethod", Message: "Not allowed"})
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return
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}
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if _, ok := req.URL.Query()["id"]; !ok {
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utils.SetResult(w, http.StatusBadRequest, nil, utils.ApiError{Id: "QueryStringMissed", Message: "This method requires the movie id"})
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return
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}
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id := req.URL.Query()["id"][0]
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movie, ok := db.MovieDb[id]
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if !ok {
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utils.SetResult(w, http.StatusNotFound, nil, nil)
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return
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}
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// parse the movie data into json format
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movieJSON, err := json.Marshal(&movie)
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if err != nil {
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utils.SetResult(w, http.StatusInternalServerError, nil, utils.ApiError{Id: "jsonMarshal", Message: "Error parsing the movie data" + err.Error()})
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return
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}
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utils.SetResult(w, http.StatusOK, nil, movieJSON)
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}

‎17-Http/07-MiniProject/main.go

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package main
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import "http-mini-project/management"
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func main() {
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management.Run()
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}

‎17-Http/07-MiniProject/management/server.go

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package management
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import (
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"http-mini-project/handlers"
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"net/http"
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"time"
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)
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func Run() {
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mux := http.NewServeMux()
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mux.Handle("/users/", &handlers.MovieHandler{})
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server := &http.Server{
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Addr: ":8080",
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ReadTimeout: time.Second * 10,
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WriteTimeout: time.Second * 10,
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Handler: mux,
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}
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err := server.ListenAndServe()
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if err != nil {
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panic(err)
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}
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}

‎17-Http/07-MiniProject/models/movie.go

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package models
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// Movie for modeling data dummy
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type Movie struct {
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ID string `json:"id"`
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Title string `json:"title"`
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Description string `json:"description"`
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}

‎17-Http/07-MiniProject/utils/api_error.go

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package utils
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type ApiError struct {
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Id string `json:"id"`
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Message string `json:"message"`
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}

‎17-Http/07-MiniProject/utils/api_result.go

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package utils
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import (
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"encoding/json"
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"net/http"
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)
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type ApiResult struct {
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Success bool `json:"success"`
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Result interface{} `json:"result"`
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Error interface{} `json:"error"`
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}
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func SetResult(w http.ResponseWriter, statusCode int, result interface{}, errorInfo interface{}) {
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w.Header().Add("Web-Server", "NGINX")
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w.Header().Set("Content-Type", "application/json")
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apiResult := &ApiResult{}
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if statusCode == http.StatusOK {
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apiResult.Success = true
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} else {
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apiResult.Success = false
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}
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apiResult.Result = result
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if errorInfo != nil {
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apiResult.Error = errorInfo
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}
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jsonResponse, err := json.Marshal(apiResult)
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if err != nil {
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apiResult.Success = false
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apiResult.Error = err.Error()
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w.WriteHeader(http.StatusInternalServerError)
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}
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w.WriteHeader(statusCode)
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_, err = w.Write(jsonResponse)
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if err != nil {
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panic(err)
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}
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}

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