code update recorded at: 23/03/26 10:04:43

handler.go

@@ -0,0 +1,32 @@
+package main
+
+// Import necessary packages
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+// Define the handler function
+func handler(req http.ResponseWriter, res *http.Request) {
+	// Initialize a map to hold the response body
+	response := map[string]string{
+		"message": "Hello, World!", // Set the message to "Hello, World!"
+	}
+
+	// Set the Content-Type header to application/json
+	req.Header().Set("Content-Type", "application/json")
+
+	// Encode the response map into JSON and write it to the response
+	json.NewEncoder(req).Encode(response)
+
+	// Marshal the response map into JSON
+	responseJson, err := json.Marshal(response)
+	if err != nil {
+		http.Error(req, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	// Print the JSON response to stdout
+	fmt.Println(string(responseJson))
+}