package main // Import necessary packages import ( "encoding/json" "net/http" ) // Define the handler function func handler(context http.ResponseWriter, event *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 context.Header().Set("Content-Type", "application/json") // Encode the response map into JSON and write it to the response json.NewEncoder(context).Encode(response) }