Temporary solution: renderToStaticMarkup

.vscode/launch.json

@@ -0,0 +1,20 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}/src/Chat/Chat.tsx",
+            "outFiles": [
+                "${workspaceFolder}/**/*.js"
+            ]
+        }
+    ]
+}

src/App.tsx

@@ -1,16 +1,17 @@
-import React from "react";
+import React, { useState } from "react";
 import ChatWrapper from "./Chat/Chat";
 const App = (): React.ReactElement => {
-    var username: string | null = prompt("Username: ")
+    const [username, setUsername] = useState<string>()
     if (!username) {
-        alert("Invalid username!")
-        var username: string | null = prompt("Username: ")
+        const newName = prompt("Username:") as string
+        setUsername(newName)
     }
     return (
         <div className="App">
             <h1>Local Area Network Chat Application</h1>
             <pre>This web application was built for the purposes of an EPQ project.</pre>
-            <ChatWrapper user={username as string} brokerURL=""/>
+            
+            {<ChatWrapper user={username as string} brokerURL=""/> }
         </div>
     )
 }

src/Chat/Chat.tsx

@@ -1,9 +1,11 @@
-import React, { useState } from "react";
+import React, { useEffect, useState } from "react";
 import { Message } from "./Message";
 import { Client, Stomp } from "@stomp/stompjs";
 import { MessageType } from "./types";
-import useWebSocket from "react-use-websocket";
-
+import { renderToStaticMarkup } from 'react-dom/server';
+const domain = "localhost"
+const port = "8080"
+const connectionAddress = `ws://${domain}:${port}/ws`
 const ChatWrapper = (
     {
         user,
@@ -14,24 +16,23 @@ const ChatWrapper = (
         brokerURL: string,
     }
 ): React.ReactElement => {
-    const domain = "localhost"
-    const port = "8080"
-    const connectionAddress = `ws://${domain}:${port}/ws`
     const stompClient = new Client({
         brokerURL: connectionAddress
     })
-    const [destination, setDestination] = useState<string>("/app/chat")
-    const [connected, setConnected] = useState(false)
-    const [subscribe, setSubscribe] = useState("/sub/chat")
-    const [username, setUsername] = useState<string>(user)
-    const [children, setChildren] = useState<React.ReactElement>()
+    const destination = "/app/chat"
+    const subscribe = "/sub/chat"
+    // const [children, setChildren] = useState<React.ReactElement[]>([])
     stompClient.onConnect = (frame) => {
-        setConnected(true);
         stompClient.subscribe(subscribe, (message) => {
             console.log(`Collected new message: ${message.body}`);
             const {from, to, content} = JSON.parse(message.body) as MessageType
             const messageElement = <Message sender={from} text={content} />
-            setChildren(messageElement)
+            // setChildren((prev) => [...prev, messageElement])
+            console.log(messageElement);
+
+            // Temporary solution
+            const container = document.getElementById("chat-inner") as HTMLDivElement
+            container.innerHTML += renderToStaticMarkup(messageElement)
         })
     }
     stompClient.onWebSocketError = (error) => {
@@ -42,58 +43,37 @@ const ChatWrapper = (
         console.error('Broker reported error: ' + frame.headers['message']);
         console.error('Additional details: ' + frame.body);
     };
+    
     const sendDataButtonHandler = (ev: React.MouseEvent) => {
         console.log("WebSockets handler invoked.")
-        ev.preventDefault()
+        
         const entryElement: HTMLInputElement = document.getElementById("data-entry") as HTMLInputElement
         const messageData = 
         {
-            from: username,
+            from: user,
             to: "everyone",
             content: entryElement.value
         }
         console.log(`STOMP connection status: ${stompClient.connected}`);
         
-        if (stompClient.connected) {
-            stompClient.publish({
-                body: JSON.stringify(messageData),
-                destination: destination
-            })
-        } else {alert("STOMP not activated!")}
+        stompClient.publish({
+            body: JSON.stringify(messageData),
+            destination: destination
+        })
+        ev.preventDefault()
     }
-    const connect = () => {
+    useEffect(() => {
         stompClient.activate()
-    }
-    const disconnect = () => {
-        stompClient.deactivate()
-    }
-    // connection.addEventListener("open", (ev: Event) => {
-    //     ev.preventDefault()
-    //     connection.send("Hello world!")
-    // })
-    // connection.addEventListener("message", (ev: MessageEvent) => {
-    //     ev.preventDefault()
-    //     const wrappers = document.getElementsByClassName(msgWrapperClassName)
-
-    //     // Matches data from JSON data input against ChatMessage datatype for processing
-    //     const data = JSON.parse(ev.data) as ChatMessage
-    //     for (let index = 0; index < wrappers.length; index++) {
-    //         const element: Element | null = wrappers.item(index);
-    //         if (!element) {
-    //             console.error("msgWrapper class cannot be found! Message not delivered.")
-    //             return
-    //         }
-    //         messageElementsArray.push(<Message sender={data.from} text={data.message} />)
-    //         // TODO Create new message 
-    //         // DDL 20 DEC
-    //     }
-    // })
+        return () => {
+            stompClient.deactivate()
+        }
+    }, [])
     return (
         <div className="chat">
-            <button onClick={ev => connect()} disabled={false}>Connect</button>
-            <button onClick={ev => disconnect()} disabled={!connected}>Disconnect</button>
+            {/* <button onClick={ev => {connect()}} disabled={connected}>Connect</button>
+            <button onClick={ev => {disconnect()}} disabled={!connected}>Disconnect</button> */}
             <div id="chat-inner">
-            {children}
+            {/* {children} */}
             </div>
             <span><input id="data-entry"></input><button onClick={ev => sendDataButtonHandler(ev)}>Send</button></span>
         </div>

src/Chat/Message.tsx

@@ -9,5 +9,5 @@ export const Message = (
     }
 ): React.ReactElement<{ sender: string; text: string; }> => {
 
-    return (<p>Message from {sender} @ {}: {text}</p>);
+    return (<p>Message from {sender}: {text}</p>);
 };

src/Chat/Socket.tsx

@@ -0,0 +1,61 @@
+import { Client } from "@stomp/stompjs"
+import { useState } from "react"
+import { Message } from "./Message"
+import { MessageType } from "./types"
+
+const Socket = (
+    {
+        address,
+        user,
+        messageCallback,
+    }:
+    {
+        address: string,
+        user: string,
+        messageCallback: (element: JSX.Element) => {},
+    }
+) => {
+    const stompClient = new Client({
+        brokerURL: address
+    })
+    const destination = "/app/chat"
+    const subscribe = "/sub/chat"
+    stompClient.onConnect = (frame) => {
+        stompClient.subscribe(subscribe, (message) => {
+            console.log(`Collected new message: ${message.body}`);
+            const {from, to, content} = JSON.parse(message.body) as MessageType
+            const messageElement = <Message sender={from} text={content} />
+            // return message to parent
+            messageCallback(messageElement)
+        })
+    }
+    stompClient.onWebSocketError = (error) => {
+        console.error('Error with websocket', error);
+    };
+    
+    stompClient.onStompError = (frame) => {
+        console.error('Broker reported error: ' + frame.headers['message']);
+        console.error('Additional details: ' + frame.body);
+    };
+    
+    const send = () => {
+        console.log("WebSockets handler invoked.")
+        
+        const entryElement: HTMLInputElement = document.getElementById("data-entry") as HTMLInputElement
+        const messageData = 
+        {
+            from: user,
+            to: "everyone",
+            content: entryElement.value
+        }
+        console.log(`STOMP connection status: ${stompClient.connected}`);
+        
+        stompClient.publish({
+            body: JSON.stringify(messageData),
+            destination: destination
+        })
+    }
+    stompClient.activate()
+    return (<></>)
+}
+export default Socket;

src/index.tsx

@@ -7,7 +7,5 @@ const root = ReactDOM.createRoot(
   document.getElementById('root') as HTMLElement
 );
 root.render(
-  <React.StrictMode>
     <App />
-  </React.StrictMode>
 );