Add standard library example

2022-11-18 19:12:41 +01:00
parent c8e1a31504
commit ad618987a1
4 changed files with 83 additions and 8 deletions
@@ -0,0 +1,50 @@
+<html>
+  <head>
+    <title>Melody example: chatting</title>
+  </head>
+
+  <style>
+    #chat {
+      text-align: left;
+      background: #f1f1f1;
+      width: 500px;
+      min-height: 300px;
+      padding: 20px;
+    }
+  </style>
+
+  <body>
+    <center>
+      <h3>Chat</h3>
+      <pre id="chat"></pre>
+      <input placeholder="say something" id="text" type="text">
+    </center>
+
+    <script>
+      var url = "ws://" + window.location.host + "/ws";
+      var ws = new WebSocket(url);
+      var name = "Guest" + Math.floor(Math.random() * 1000);
+
+      var chat = document.getElementById("chat");
+      var text = document.getElementById("text");
+
+      var now = function () {
+        var iso = new Date().toISOString();
+        return iso.split("T")[1].split(".")[0];
+      };
+
+      ws.onmessage = function (msg) {
+        var line =  now() + " " + msg.data + "\n";
+        chat.innerText += line;
+      };
+
+      text.onkeydown = function (e) {
+        if (e.keyCode === 13 && text.value !== "") {
+          ws.send("<" + name + "> " + text.value);
+          text.value = "";
+        }
+      };
+
+    </script>
+  </body>
+</html>
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/olahol/melody"
+	"net/http"
+)
+
+func main() {
+	r := gin.Default()
+	m := melody.New()
+
+	r.GET("/", func(c *gin.Context) {
+		http.ServeFile(c.Writer, c.Request, "index.html")
+	})
+
+	r.GET("/ws", func(c *gin.Context) {
+		m.HandleRequest(c.Writer, c.Request)
+	})
+
+	m.HandleMessage(func(s *melody.Session, msg []byte) {
+		m.Broadcast(msg)
+	})
+
+	r.Run(":5000")
+}
@@ -1,26 +1,25 @@
 package main

 import (
-	"github.com/gin-gonic/gin"
-	"github.com/olahol/melody"
 	"net/http"
+
+	"github.com/olahol/melody"
 )

 func main() {
-	r := gin.Default()
 	m := melody.New()

-	r.GET("/", func(c *gin.Context) {
-		http.ServeFile(c.Writer, c.Request, "index.html")
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		http.ServeFile(w, r, "index.html")
 	})

-	r.GET("/ws", func(c *gin.Context) {
-		m.HandleRequest(c.Writer, c.Request)
+	http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
+		m.HandleRequest(w, r)
 	})

 	m.HandleMessage(func(s *melody.Session, msg []byte) {
 		m.Broadcast(msg)
 	})

-	r.Run(":5000")
+	http.ListenAndServe(":5000", nil)
 }