package main import ( "fmt" "log" "net/http" "os" "time" "encoding/json" "strings" "github.com/joho/godotenv" "context" _ "github.com/lib/pq" "github.com/uptrace/bun" ) func handler(w http.ResponseWriter, r *http.Request) { fmt.Fprintf(w, "

Hello, World!

") } type ErrorResponse struct { ErrorCode string `json:"errorCode"` Message string `json:"message"` } var DB *bun.DB type DSN struct { Hostname string Port string DBName string User string Password string } func (dsn *DSN) ToString() string { return fmt.Sprintf("postgres://%s:%s@%s:%s/%s?sslmode=disable", dsn.User, dsn.Password, dsn.Hostname, dsn.Port, dsn.DBName) } func handlerCreateUser(w http.ResponseWriter, r *http.Request) { if r.Method != http.MethodPost { w.Header().Set("Content-Type", "application/json") w.WriteHeader(http.StatusCreated) w.Write([]byte(`{"message": "Resource created successfully"}`)) } user := &User{ FirstName: "John", LastName: "Doe", Email: "john.doe@example.com", Phone: "1234567890", Password: "1234", } _, err := DB.NewInsert().Model(user).Exec(context.Background()) if err != nil { log.Fatal(err) } fmt.Println("User inserted successfully") } func handlerCreateBlog(w http.ResponseWriter, r *http.Request) { emptyObject := make(map[string]interface{}) emptyJSON, json_err := json.Marshal(emptyObject) if json_err != nil { fmt.Println("Couldn't create the json object") w.Write(emptyJSON) } if r.Method != http.MethodPost { return string(emptyJSON) } err := r.ParseForm() if err != nil { return string(emptyJSON) } user := &Blog{ BaseModel: bun.BaseModel{}, BlogID: [16]byte{}, Slug: "", Content: "", Label: "", AuthorID: [16]byte{}, Published: time.Time{}, Summary: "", Image: "", Href: "", Author: &User{}, } _, err_db := DB.NewInsert().Model(user).Exec(context.Background()) if err_db != nil { log.Fatal(err) } fmt.Println("User inserted successfully") return string(emptyJSON) } func handlerGetBlog(w http.ResponseWriter, r *http.Request) (string) { log.Println("ok") emptyObject := make(map[string]interface{}) emptyJSON, json_err := json.Marshal(emptyObject) if json_err != nil { fmt.Println("Couldn't create the json object") return string(emptyJSON) } if r.Method != http.MethodGet { http.Error(w, "Wrong method", http.StatusMethodNotAllowed) return string(emptyJSON) } if !strings.HasPrefix(r.URL.Path, "/blog/") { http.Redirect(w, r, "/blog", http.StatusFound) return string(emptyJSON) } blog_uuid := strings.TrimPrefix(r.URL.Path, "/blog/") if blog_uuid == "" { http.Error(w, "Slug is required", http.StatusBadRequest) return string(emptyJSON) } blog := &Blog{ BaseModel: bun.BaseModel{}, BlogID: [16]byte{}, Slug: "", Content: "", Label: "", AuthorID: [16]byte{}, Published: time.Time{}, Summary: "", Image: "", Href: "", Author: &User{}, } ctx := context.Background() err_db := DB.NewSelect().Model(blog).Where("uuid = ", blog_uuid).Scan(ctx) if err_db != nil { log.Fatal(err_db) http.Error(w, "Can't use select", http.StatusNotFound) return string(emptyJSON) } fmt.Println("Blog inserted successfully") return string(emptyJSON) } func main() { err := godotenv.Load() if err != nil { log.Fatalf("Error loading .env file: %v", err) } environ := os.Getenv("ENVIRONMENT") port := os.Getenv("BACKEND_DOCKER_PORT") if environ == "DEV" { port = os.Getenv("BACKEND_PORT") } dsn := DSN{ Hostname: "localhost", Port: os.Getenv("POSTGRES_PORT"), DBName: os.Getenv("POSTGRES_DB"), User: os.Getenv("POSTGRES_USER"), Password: os.Getenv("POSTGRES_PASSWORD"), } DB, err = InitDatabase(dsn) if err != nil { log.Fatal(err) } http.HandleFunc("/", handler) http.HandleFunc("/user/new", handlerCreateUser) http.HandleFunc("/users/login", HandleLogin) http.HandleFunc("/blog/", handlerGetBlog) fmt.Printf("Serving on port %s\n", port) err = http.ListenAndServe(fmt.Sprintf(":%s", port), nil) if err != nil { fmt.Printf("Error starting server: %s\n", err) } }