first commit

bin/simple-responder/simple-responder.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"net/http"
+)
+
+func main() {
+	// Define a command-line flag for the port
+	port := flag.String("port", "8080", "port to listen on")
+
+	// Define a command-line flag for the response message
+	responseMessage := flag.String("respond", "hi", "message to respond with")
+
+	flag.Parse() // Parse the command-line flags
+
+	// Set up the handler function using the provided response message
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintln(w, *responseMessage)
+	})
+
+	// Set up the /health endpoint handler function
+	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		response := `{"status": "ok"}`
+		w.Write([]byte(response))
+	})
+
+	address := ":" + *port // Address with the specified port
+	fmt.Printf("Server is listening on port %s\n", *port)
+
+	// Start the server and log any error if it occurs
+	if err := http.ListenAndServe(address, nil); err != nil {
+		fmt.Printf("Error starting server: %s\n", err)
+	}
+}