?? Go ????? ?? ?????? ??? API? ???? ?? ???? ?? ??? ????? ?? ?????. ??? ?? ???? ???? ????? ?? ??? ? ???? ??? ??? ???????.

net/http ???? API ??? ??? ?????. HTTP ?? ? ??? ???? ?? ?????? ??? ?????? ?????. ?? ??? ???? ??? ??? ????.

package main

import (
    "fmt"
    "log"
    "net/http"
)

func main() {
    http.HandleFunc("/", handleRoot)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func handleRoot(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Welcome to our API!")
}

?? ?? 8080?? ?? ???? ?? ??? ??? ???? ??? ?????. ??? ???? ?? RESTful ?????? ???? ?? ???? ??? ?????.

func main() {
    http.HandleFunc("/api/users", handleUsers)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func handleUsers(w http.ResponseWriter, r *http.Request) {
    switch r.Method {
    case "GET":
        getUsers(w, r)
    case "POST":
        createUser(w, r)
    default:
        http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
    }
}

func getUsers(w http.ResponseWriter, r *http.Request) {
    // Fetch users from database and return them
}

func createUser(w http.ResponseWriter, r *http.Request) {
    // Create a new user in the database
}

?? ??? ?????? ?? ??? HTTP ???? ??? ? ?? ?? ???? API? ?????. ??? JSON ???? ??? ?????? ???/json ???? ?????.

encoding/json ???? ???? Go ???? JSON?? ?? ????? JSON? Go ???? ????? ? ????. API?? ?? ???? ??? ??? ????.

type User struct {
    ID   int    `json:"id"`
    Name string `json:"name"`
}

func getUsers(w http.ResponseWriter, r *http.Request) {
    users := []User{
        {ID: 1, Name: "Alice"},
        {ID: 2, Name: "Bob"},
    }

    w.Header().Set("Content-Type", "application/json")
    json.NewEncoder(w).Encode(users)
}

func createUser(w http.ResponseWriter, r *http.Request) {
    var newUser User
    err := json.NewDecoder(r.Body).Decode(&newUser)
    if err != nil {
        http.Error(w, err.Error(), http.StatusBadRequest)
        return
    }

    // Save newUser to database
    w.WriteHeader(http.StatusCreated)
    json.NewEncoder(w).Encode(newUser)
}

? ??? JSON ??? ??? JSON ??? ?? ???? ??? ?????. json.NewEncoder(w).Encode(users) ??? ??? ????? JSON?? ????? ?? ??? ???. ??? json.NewDecoder(r.Body).Decode(&newUser)? ?? ???? JSON? ?? newUser ???? ????.

API? ???? ?? ???? ??? ?? ??? ?? ?? ????? ???? ?? ?? ????. Go? http ???? ???? ? ??? ??????.

func loggingMiddleware(next http.HandlerFunc) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {
        log.Printf("Request: %s %s", r.Method, r.URL.Path)
        next.ServeHTTP(w, r)
    }
}

func authMiddleware(next http.HandlerFunc) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {
        token := r.Header.Get("Authorization")
        if token != "secret-token" {
            http.Error(w, "Unauthorized", http.StatusUnauthorized)
            return
        }
        next.ServeHTTP(w, r)
    }
}

func main() {
    http.HandleFunc("/api/users", authMiddleware(loggingMiddleware(handleUsers)))
    log.Fatal(http.ListenAndServe(":8080", nil))
}

??? ? ?? ???? ??? ??????. ??? ????? ?? ??? ??? ?? ?? ??????. ??? ???? ??? ???? ??? ?? ?? ??? ??? ? ????.

API ??? ? ?? ??? ??? ??? ?? ?????. Go? ?? ?? ??? ???? ?? ??? ???? ?? ??? ??? ????. ? ?? ?? ??? createUser ??? ??? ?????.

func createUser(w http.ResponseWriter, r *http.Request) {
    var newUser User
    err := json.NewDecoder(r.Body).Decode(&newUser)
    if err != nil {
        http.Error(w, "Invalid request payload", http.StatusBadRequest)
        return
    }

    if newUser.Name == "" {
        http.Error(w, "Name is required", http.StatusBadRequest)
        return
    }

    // Simulate database error
    if newUser.ID == 999 {
        http.Error(w, "Database error", http.StatusInternalServerError)
        return
    }

    w.WriteHeader(http.StatusCreated)
    json.NewEncoder(w).Encode(newUser)
}

? ??? ??? ?? ??? ???? ??? HTTP ?? ??? ?? ???? ?????.

API? ???? ?? ?? ?? ???? ?? ?? ???? ?? ? ??? ????? ???? ? ?? ????. ??? ???? ???? ??? ????. ?? ?? ?? ?? ?? ????, ?? ??? ????, ??? ??? ? ????.

API?? ????? ???? ??? ??? ????.

func handleLongRunningTask(w http.ResponseWriter, r *http.Request) {
    ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
    defer cancel()

    result := make(chan string, 1)
    go func() {
        // Simulate a long-running task
        time.Sleep(6 * time.Second)
        result <- "Task completed"
    }()

    select {
    case <-ctx.Done():
        http.Error(w, "Request timed out", http.StatusRequestTimeout)
    case res := <-result:
        fmt.Fprint(w, res)
    }
}

? ???? ?? ?? ??? 5?? ??????. ?? ?? ??? ? ?? ?? ???? ??? ?????? ?? ?? ??? ?????.

??? ?? API?? ??? ??????. Go? ?? ?????? API ??? ????? ? ??? ?? ?? ??? ?????. ?? ??, sync.Pool? ???? ??? ????? ??? ???? ??? ?? ? ????.

package main

import (
    "fmt"
    "log"
    "net/http"
)

func main() {
    http.HandleFunc("/", handleRoot)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func handleRoot(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Welcome to our API!")
}

? ??? ??? ??? ?????? ???? ?? ?????? ??? ??? ?? ?? ? ????.

? ?? ?? ?? ??? ???? ??????. ??? API?? ?? http.ServeMux? ????? ?? ??? ??? ?????? ??? ?? ???? ???? ?? ????.

func main() {
    http.HandleFunc("/api/users", handleUsers)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func handleUsers(w http.ResponseWriter, r *http.Request) {
    switch r.Method {
    case "GET":
        getUsers(w, r)
    case "POST":
        createUser(w, r)
    default:
        http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
    }
}

func getUsers(w http.ResponseWriter, r *http.Request) {
    // Fetch users from database and return them
}

func createUser(w http.ResponseWriter, r *http.Request) {
    // Create a new user in the database
}

? ??? ?? ???? ???? ????? ??? ???? ?? ??? ?? ??? ?????.

API? ???? ?? ?? ??? ????? ???? ? ?? ????. Go? ???? ??? ?? ?????:

type User struct {
    ID   int    `json:"id"`
    Name string `json:"name"`
}

func getUsers(w http.ResponseWriter, r *http.Request) {
    users := []User{
        {ID: 1, Name: "Alice"},
        {ID: 2, Name: "Bob"},
    }

    w.Header().Set("Content-Type", "application/json")
    json.NewEncoder(w).Encode(users)
}

func createUser(w http.ResponseWriter, r *http.Request) {
    var newUser User
    err := json.NewDecoder(r.Body).Decode(&newUser)
    if err != nil {
        http.Error(w, err.Error(), http.StatusBadRequest)
        return
    }

    // Save newUser to database
    w.WriteHeader(http.StatusCreated)
    json.NewEncoder(w).Encode(newUser)
}

? ??? ? ?? ????? ??? ???? ??? ??? ?? ???? ?????.

API ????? ??? ?? ?????. Go? ??? ???? ??, ??? ?? ?? ??? ?????. ??? ????? ???? ??? ????.

func loggingMiddleware(next http.HandlerFunc) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {
        log.Printf("Request: %s %s", r.Method, r.URL.Path)
        next.ServeHTTP(w, r)
    }
}

func authMiddleware(next http.HandlerFunc) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {
        token := r.Header.Get("Authorization")
        if token != "secret-token" {
            http.Error(w, "Unauthorized", http.StatusUnauthorized)
            return
        }
        next.ServeHTTP(w, r)
    }
}

func main() {
    http.HandleFunc("/api/users", authMiddleware(loggingMiddleware(handleUsers)))
    log.Fatal(http.ListenAndServe(":8080", nil))
}

??? ??? ???? ??? ????? ???? ???? ??? ? ????.

???? API ??? ???? ???? Go? ??? ???? ???? ???? ?? ???? ??? ? ????. ??? handlerUsers ??? ????? ??? ?? ????.

func createUser(w http.ResponseWriter, r *http.Request) {
    var newUser User
    err := json.NewDecoder(r.Body).Decode(&newUser)
    if err != nil {
        http.Error(w, "Invalid request payload", http.StatusBadRequest)
        return
    }

    if newUser.Name == "" {
        http.Error(w, "Name is required", http.StatusBadRequest)
        return
    }

    // Simulate database error
    if newUser.ID == 999 {
        http.Error(w, "Database error", http.StatusInternalServerError)
        return
    }

    w.WriteHeader(http.StatusCreated)
    json.NewEncoder(w).Encode(newUser)
}

? ???? ??? ???? ???? ???? ?? ??? ??? ?????.

????? Go? ?? ?????? ????? ?? ??? API? ???? ?? ??? ?? ??? ?????. HTTP ?? ?? ? JSON ???? ??? ?? ? ?? ?? ??? ????? ?? ?????? ?? ?? ????. ??? ?? ???? ????? ?????? ?? ?????? ???? ??? ??? API? ?? ? ????. ?? ??? ??? ???? ?? ??? ??? ???? ?? ??? ?? ??? ????? ?????. Go? ?? ?????? ???? ?? ????? API ?? ????? ???? ? ?? ? ?? ??? ???? ? ????.

---

??? ???

?? ???? ? ??? ???.

???? ??? | ??? ?? ???? | ?? ?? ??? | ????? | ??? ??? | ????? ???? | ???? | ??? ??? | JS ??

---

??? ??? ????

?? ??? ???? | Epochs & Echoes World | ??????? | ???? ???? ?? | ??? ??? ?? | ?? ????

? ??? Go&#s ?? ?????? ???? ??? API ??: ?? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!