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update websocket example #16

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200 changes: 109 additions & 91 deletions websocket-chat/app/static/index.html
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Original file line number Diff line number Diff line change
@@ -1,100 +1,118 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>BlackSheep WebSocket Example</title>
<script src="https://unpkg.com/vue@next"></script>
<style>
.controls {
display: flex;
column-gap: 3px;
}
</style>
</head>
<body>
<div id="app">
<p><b>Your client ID is {{ CLIENT_ID }}</b></p>
<p>Status: {{ status }}</p>
<p>Messages:</p>
<ul>
<li v-for="message in messages" :key="message.timestamp">
<div><b>From:</b> {{ message.author }}</div>
<div><b>Sent:</b> {{ renderTimestamp(message.timestamp) }}</div>
<div><b>Text:</b> {{ message.text }}</div>
</li>
</ul>
<div class="controls" @keypress.enter.prevent="submit">
<input type="text" placeholder="Your message" v-model="messageText">
<button type="button" :disabled="!ws" @click.prevent="submit">Submit</button>
<button type="button" :disabled="ws" @click.prevent="connect(WS_URL)">Connect</button>
<button type="button" :disabled="!ws" @click.prevent="disconnect">Disconnect</button>
</div>
</div>
<script>
CLIENT_ID = crypto.randomUUID()
WS_URL = `ws://${location.host}/ws/${CLIENT_ID}`
<head>
<meta charset="UTF-8" />
<title>BlackSheep WebSocket Example with Vue</title>
<script src="https://unpkg.com/[email protected]/dist/vue.global.prod.js"></script>
<style>
.controls {
display: flex;
column-gap: 3px;
margin-top: 10px;
}
input {
flex: 1;
}
</style>
</head>
<body>
<div id="app">
<p><b>Your client ID is {{ CLIENT_ID }}</b></p>
<p>Status: {{ status }}</p>

const app = {
data() {
return {
messages: [],
messageText: "",
ws: null,
status: "Disconnected",
WS_URL,
CLIENT_ID
}
},
methods: {
makeMessage() {
return {
author: this.CLIENT_ID,
text: this.messageText,
timestamp: new Date().toISOString()
}
},
submit() {
const message = this.makeMessage()
this.ws.send(JSON.stringify(message))
this.messageText = ""
},
connect(url) {
const ws = new WebSocket(url)
<p>Messages:</p>
<ul>
<li v-for="message in messages" :key="message.timestamp">
<div><b>From:</b> {{ message.author }}</div>
<div>
<b>Sent:</b> {{ renderTimestamp(message.timestamp) }}
</div>
<div><b>Text:</b> {{ message.text }}</div>
</li>
</ul>

ws.addEventListener("open", (evt) => {
this.status = "Connected"
console.log("Open", evt)
})
<div class="controls">
<input
type="text"
placeholder="Your message"
v-model="messageText"
@keyup.enter="submit"
/>
<button :disabled="!ws" @click="submit">Submit</button>
<button :disabled="ws" @click="connect">Connect</button>
<button :disabled="!ws" @click="disconnect">Disconnect</button>
</div>
</div>

ws.addEventListener("message", (evt) => {
this.messages.push(JSON.parse(evt.data))
console.log("Message", evt)
})
<script>
const { createApp } = Vue;

ws.addEventListener("close", (evt) => {
this.status = "Disconnected"
console.log("Close", evt)
})
createApp({
data() {
return {
CLIENT_ID: crypto.randomUUID(),
WS_URL: `ws://${
location.host
}/ws/${crypto.randomUUID()}`, // generated again at connection
ws: null,
status: "Disconnected",
messageText: "",
messages: [],
};
},
methods: {
makeMessage() {
return {
author: this.CLIENT_ID,
text: this.messageText,
timestamp: new Date().toISOString(),
};
},
submit() {
if (
!this.ws ||
this.ws.readyState !== WebSocket.OPEN ||
!this.messageText
)
return;
const message = this.makeMessage();
this.ws.send(JSON.stringify(message));
this.messageText = "";
},
connect() {
this.WS_URL = `ws://${location.host}/ws/${this.CLIENT_ID}`; // ensure it uses the actual client ID
this.ws = new WebSocket(this.WS_URL);

ws.addEventListener("error", (evt) => {
this.status = "Error (see console)"
console.error("Error", evt)
})
this.ws.addEventListener("open", () => {
this.status = "Connected";
});

this.ws = ws
},
disconnect() {
this.ws.close()
this.ws = null
this.messages = []
},
renderTimestamp(timestamp) {
return new Date(timestamp).toLocaleTimeString()
}
}
}
this.ws.addEventListener("message", (event) => {
this.messages.push(JSON.parse(event.data));
});

Vue.createApp(app).mount("#app")
</script>
</body>
</html>
this.ws.addEventListener("close", () => {
this.status = "Disconnected";
this.ws = null;
});

this.ws.addEventListener("error", (event) => {
this.status = "Error";
console.error("WebSocket error:", event);
});
},
disconnect() {
if (this.ws) {
this.ws.close();
this.ws = null;
this.messages = [];
}
},
renderTimestamp(ts) {
return new Date(ts).toLocaleTimeString();
},
},
}).mount("#app");
</script>
</body>
</html>