App.tsx•1.65 kB
import { FormEvent, useState } from "react";
import { useQuery } from "convex/react";
import {
useSessionMutation,
useSessionQuery,
} from "convex-helpers/react/sessions";
import { api } from "../convex/_generated/api";
export default function App() {
const messages = useQuery(api.messages.list) || [];
const [newMessageText, setNewMessageText] = useState("");
const sendMessage = useSessionMutation(api.messages.send);
async function handleSendMessage(event: FormEvent) {
event.preventDefault();
await sendMessage({ body: newMessageText });
setNewMessageText("");
}
return (
<main>
<h1>Convex Chat</h1>
<p className="badge">
<Name />
</p>
<ul>
{messages.map((message) => (
<li key={message._id}>
<span>{message.author}:</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>
);
}
function Name() {
const name = useSessionQuery(api.name.get);
const updateName = useSessionMutation(api.name.set);
return (
<span>
<input
name="name"
value={name ?? ""}
type="text"
onChange={(e) => updateName({ name: e.target.value })}
placeholder="Type Name"
/>
</span>
);
}