inital commit

wsgorillatest/go.mod

@@ -0,0 +1,5 @@
+module wsGorillatest
+
+go 1.19
+
+require github.com/gorilla/websocket v1.5.0 // indirect

wsgorillatest/go.sum

@@ -0,0 +1,2 @@
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=

wsgorillatest/test.html

@@ -0,0 +1,22 @@
+<!-- websockets.html -->
+<input id="input" type="text" />
+<button onclick="send()">Send</button>
+<pre id="output"></pre>
+<script>
+    var input = document.getElementById("input");
+    var output = document.getElementById("output");
+    var socket = new WebSocket("ws://localhost:8080/echo");
+
+    socket.onopen = function () {
+        output.innerHTML += "Status: Connected\n";
+    };
+
+    socket.onmessage = function (e) {
+        output.innerHTML += "Server: " + e.data + "\n";
+    };
+
+    function send() {
+        socket.send(input.value);
+        input.value = "";
+    }
+</script>

wsgorillatest/websockets.html

@@ -0,0 +1,22 @@
+<!-- websockets.html -->
+<input id="input" type="text" />
+<button onclick="send()">Send</button>
+<pre id="output"></pre>
+<script>
+    var input = document.getElementById("input");
+    var output = document.getElementById("output");
+    var socket = new WebSocket("ws://localhost:8080/echo");
+
+    socket.onopen = function () {
+        output.innerHTML += "Status: Connected\n";
+    };
+
+    socket.onmessage = function (e) {
+        output.innerHTML += "Server: " + e.data + "\n";
+    };
+
+    function send() {
+        socket.send(input.value);
+        input.value = "";
+    }
+</script>

wsgorillatest/ws.go

@@ -0,0 +1,50 @@
+// websockets.go
+package main
+
+import (
+    "fmt"
+    "net/http"
+    "log"
+
+    "github.com/gorilla/websocket"
+)
+
+var upgrader = websocket.Upgrader{
+    ReadBufferSize:  1024,
+    WriteBufferSize: 1024,
+    CheckOrigin: func(r *http.Request) bool {
+        return  true
+   },
+}
+
+func main() {
+    http.HandleFunc("/echo", func(w http.ResponseWriter, r *http.Request) {
+        conn, err := upgrader.Upgrade(w, r, nil) // error ignored for sake of simplicity
+        if err != nil {
+            log.Println(err)
+            return
+        }
+    
+        for {
+            // Read message from browser
+            msgType, msg, err := conn.ReadMessage()
+            if err != nil {
+                return
+            }
+
+            // Print the message to the console
+            fmt.Printf("%s sent: %s\n", conn.RemoteAddr(), string(msg))
+
+            // Write message back to browser
+            if err = conn.WriteMessage(msgType, msg); err != nil {
+                return
+            }
+        }
+    })
+
+    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+        http.ServeFile(w, r, "websockets.html")
+    })
+
+    http.ListenAndServe(":8080", nil)
+}