ch18.3

2026-03-24 14:20:29 +03:00
parent 4ff2f16110
commit 974e7f151f
4 changed files with 74 additions and 1 deletions
--- a/cmd/examples/cors/simple/main.go
+++ b/cmd/examples/cors/simple/main.go
@@ -0,0 +1,45 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+)
+
+const html = `
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+</head>
+<body>
+	<h1>Simple CORS</h1>
+	<div id="output"></div>
+	<script>
+		document.addEventListener('DOMContentLoaded', function() {
+			fetch("http://localhost:4000/v1/healthcheck").then(
+				function (response) {
+					response.text().then(function (text) {
+						document.getElementById("output").innerHTML = text;
+					});
+				},
+				function(err) {
+					document.getElementById("output").innerHTML = err;
+				}
+			);
+		});
+	</script>
+</body>
+</html>`
+
+func main() {
+	addr := flag.String("addr", ":9000", "Server address")
+	flag.Parse()
+
+	log.Printf("starting server on %s", *addr)
+
+	err := http.ListenAndServe(*addr, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(html))
+	}))
+	log.Fatal(err)
+}