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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>SocketIO Test Client</title>
</head>
<style>
* {
padding: 0;
margin: 0;
text-decoration: none;
}
body {
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
background-color: #fff;
display: grid;
grid-template-columns: 1fr 1fr;
padding: 5%;
width: 100vw;
max-height: 100vh;
box-sizing: border-box;
gap: 20px;
}
textarea {
width: 100%;
height: 300px;
max-height: 300px;
padding: 5px;
}
.left .right {
height: 100%;
}
.left {
display: flex;
flex-direction: column;
gap: 10px;
}
input,
select {
padding: 5px !important;
}
.actions {
display: flex;
justify-content: space-between;
align-items: center;
}
button {
padding: 10px;
cursor: pointer;
}
.logs {
max-height: 250px;
overflow-y: scroll;
white-space: pre-line;
font-size: 0.8rem;
}
label {
font-size: small;
font-weight: normal;
}
</style>
<body>
<div class="left">
<input
type="text"
placeholder="socketio url (default: localhost:3000)"
id="url"
/>
<input type="text" placeholder="room name/id" id="room_id" />
<select id="transport_method">
<option value="both">transport method (default: both)</option>
<option value="both">Both</option>
<option value="polling">Polling</option>
<option value="websocket">Websocket</option>
</select>
<div class="options">
<input type="checkbox" id="encode" checked />
<label for="encode">Encode message as JSON</label>
<!-- <input type="checkbox" id="decode" checked />
<label for="decode">Parse response as JSON</label> -->
</div>
<textarea id="message" placeholder="message"></textarea>
<div class="actions">
<button type="button" id="connect">Try Connect</button>
<button type="button" id="send_message">Send Message</button>
<button type="button" id="clear_log">Clear Log</button>
</div>
</div>
<div class="right">
<textarea name="" id="response" placeholder="response"></textarea>
<div class="logs"></div>
</div>
</body>
<script
src="https://cdn.socket.io/4.5.0/socket.io.min.js"
integrity="sha384-7EyYLQZgWBi67fBtVxw60/OWl1kjsfrPFcaU0pp0nAh+i8FD068QogUvg85Ewy1k"
crossorigin="anonymous"
></script>
<script>
const url = document.getElementById("url");
const room_id = document.getElementById("room_id");
const transport_method = document.getElementById("transport_method");
const encodeAsJSON = document.getElementById("encode").value;
// const decodeAsJSON = document.getElementById("decode").value;
const message = document.getElementById("message");
const response = document.getElementById("response");
const textareas = document.querySelectorAll("textarea");
const logs = document.querySelector(".logs");
const connect = document.getElementById("connect");
const send_message = document.getElementById("send_message");
const clear_log = document.getElementById("clear_log");
const methods = {
both: ["polling", "websocket"],
polling: ["polling"],
websocket: ["websocket"],
};
let socket = null;
let status = "disconnected";
textareas.forEach((textarea) => {
textarea.addEventListener("keydown", (e) => {
if (e.keyCode === 9) {
e.preventDefault();
const end = textarea.selectionEnd;
textarea.value =
textarea.value.substring(0, textarea.selectionEnd) +
"\t" +
textarea.value.substring(textarea.selectionEnd);
textarea.selectionEnd = end + 1;
}
});
});
connect.addEventListener("click", () => {
if (status !== "connected") {
try {
if (!room_id.value || room_id.value === "") {
logs.textContent =
logs.textContent + "Error!!! => A room id is requred!\n\n";
return;
}
if (status === "connecting") {
socket.disconnect();
connect.textContent = "Try Connect";
status = "disconnected";
return;
}
socket = io(
!url.value || url.value == "" ? "http://localhost:3000" : url.value,
{ transports: methods[transport_method.value] }
);
socket.connect();
status = "connecting";
connect.textContent = "Connecting... Click to stop";
socket.on("connect", () => {
status = "connected";
connect.textContent = "Disconnect";
logs.textContent = logs.textContent + "Socket connected!\n\n";
socket.emit("join", room_id.value);
logs.textContent =
logs.textContent + "Joined room " + room_id.value + "\n\n";
});
socket.on("message", (data) => {
response.value = data;
logs.textContent = logs.textContent + "Data received!" + "\n\n";
});
socket.on("disconnect", () => {
status = "disconnected";
connect.textContent = "Connect";
logs.textContent =
logs.textContent + "Socket disconnected!" + "\n\n";
});
socket.on("connect_error", (err) => {
logs.textContent =
logs.textContent +
err +
" Check console for more info!" +
"\n\n";
console.log(err);
});
} catch (err) {
logs.textContent =
logs.textContent +
"An error occurred! check console for more info.\n\n";
console.log(err);
}
} else {
socket.disconnect();
status = "disconnected";
logs.textContent = logs.textContent + "Socket disconnected!\n\n";
}
});
send_message.addEventListener("click", () => {
if (status === "connected") {
logs.textContent =
logs.textContent + "Error!!! => No valid connection!\n\n";
return;
}
if (message.value && message.value !== "") {
socket.emit("message", encode ? JSON.stringify(message.value) : message.value);
} else {
logs.textContent =
logs.textContent + "Error!!! => A message is requred!\n\n";
}
});
clear_log.addEventListener("click", () => {
logs.textContent = "";
});
</script>
</html>