Feature: Add health check (#79)

Co-authored-by: aalur <[email protected]>

server.go

@@ -18,6 +18,7 @@ func (app *App) StartServer(ctx context.Context, applicationPort string) error {
 	name := "tbd" // TODO: Add a name field to "App"
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", app.handleRequest)
+	mux.HandleFunc("/health", HealthCheck)
 
 	server := &http.Server{
 		Addr:              applicationPort,
@@ -44,6 +45,10 @@ func (app *App) StartServer(ctx context.Context, applicationPort string) error {
 	}
 }
 
+func HealthCheck(w http.ResponseWriter, _ *http.Request) {
+	w.WriteHeader(http.StatusOK)
+}
+
 func (app *App) handleRequest(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)