initial commit

backend/handlers.go

@@ -0,0 +1,55 @@
+// TODO: READ AND UNDERSTAND + ALTER
+
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+)
+
+// GET /users
+func getUsers(w http.ResponseWriter, r *http.Request) {
+	rows, err := db.Query(context.Background(), "SELECT id, name FROM users")
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+	defer rows.Close()
+
+	var users []User
+
+	for rows.Next() {
+		var u User
+		rows.Scan(&u.ID, &u.Name)
+		users = append(users, u)
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(users)
+}
+
+// POST /users
+func createUser(w http.ResponseWriter, r *http.Request) {
+	var u User
+
+	err := json.NewDecoder(r.Body).Decode(&u)
+	if err != nil {
+		http.Error(w, "Invalid JSON", 400)
+		return
+	}
+
+	err = db.QueryRow(
+		context.Background(),
+		"INSERT INTO users(name) VALUES($1) RETURNING id",
+		u.Name,
+	).Scan(&u.ID)
+
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(u)
+}