App.tsx•1.96 kB
import { FormEvent, useState } from "react";
import { useAction, useMutation, useQuery } from "convex/react";
import { api } from "../convex/_generated/api";
export default function App() {
const messages = useQuery(api.messages.list) || [];
const [newMessageText, setNewMessageText] = useState("");
const sendMessage = useMutation(api.messages.send);
const sendGif = useAction(api.messages.sendGif);
const [name] = useState(() => "User " + Math.floor(Math.random() * 10000));
async function handleSendMessage(event: FormEvent) {
event.preventDefault();
// If a /giphy command is entered, call the action.
if (newMessageText.startsWith("/giphy ")) {
const query = newMessageText.slice(7);
await sendGif({ queryString: query, author: name });
} else {
await sendMessage({ body: newMessageText, author: name });
}
setNewMessageText("");
}
return (
<main>
<h1>Convex Chat</h1>
<p className="badge">
<span>{name}</span>
</p>
<div className="instructions">
To send a GIF, use <span>/giphy message</span>
</div>
<ul>
{messages.map((message) => (
<li key={message._id}>
<span>{message.author}:</span>
{message.format === "giphy" ? (
<span>
<iframe src={message.body} />
<div className="giphy-attribution">Powered By GIPHY</div>
</span>
) : (
<span>{message.body}</span>
)}
<span>{new Date(message._creationTime).toLocaleTimeString()}</span>
</li>
))}
</ul>
<form onSubmit={handleSendMessage}>
<input
value={newMessageText}
onChange={(event) => setNewMessageText(event.target.value)}
placeholder="Write a message…"
/>
<input type="submit" value="Send" disabled={!newMessageText} />
</form>
</main>
);
}