ai-sdk-next-openai/app/use-chat-attachments-url/page.tsx
2025-09-26 15:46:29 +00:00

120 lines
3.6 KiB
TypeScript

'use client';
/* eslint-disable @next/next/no-img-element */
import { useChat } from '@ai-sdk/react';
import { upload } from '@vercel/blob/client';
import { FileUIPart } from 'ai';
import { useRef, useState } from 'react';
export default function Page() {
const [input, setInput] = useState('');
const { messages, sendMessage, status } = useChat();
const [files, setFiles] = useState<FileUIPart[]>([]);
const [isUploading, setIsUploading] = useState<boolean>(false);
const fileInputRef = useRef<HTMLInputElement>(null);
return (
<div className="flex flex-col gap-2">
<div className="flex flex-col gap-2 p-2">
{messages.map(message => (
<div key={message.id} className="flex flex-row gap-2">
<div className="flex-shrink-0 w-24 text-zinc-500">{`${message.role}: `}</div>
<div className="flex flex-col gap-2">
{message.parts.map((part, index) => {
if (part.type === 'text') {
return <div key={index}>{part.text}</div>;
}
if (
part.type === 'file' &&
part.mediaType?.startsWith('image/')
) {
return (
<div key={index}>
<img
className="rounded-md w-60"
src={part.url}
alt={part.filename}
/>
</div>
);
}
})}
</div>
</div>
))}
</div>
<form
onSubmit={event => {
if (isUploading) {
alert('Please wait for the files to finish uploading.');
return;
}
sendMessage({ text: input, files });
setInput('');
setFiles([]);
if (fileInputRef.current) {
fileInputRef.current.value = '';
}
}}
className="fixed bottom-0 flex flex-col w-full gap-2 p-2"
>
<div className="fixed flex flex-row items-end gap-2 right-2 bottom-14">
{Array.from(files)
.filter(file => file.mediaType?.startsWith('image/'))
.map(file => (
<div key={file.url}>
<img
className="w-24 rounded-md"
src={file.url}
alt={file.filename}
/>
<span className="text-sm text-zinc-500">{file.filename}</span>
</div>
))}
</div>
<input
type="file"
onChange={async event => {
if (event.target.files) {
setIsUploading(true);
for (const file of Array.from(event.target.files)) {
const blob = await upload(file.name, file, {
access: 'public',
handleUploadUrl: '/api/files',
});
setFiles(prevFiles => [
...prevFiles,
{
type: 'file' as const,
filename: file.name,
mediaType: blob.contentType ?? '*/*',
url: blob.url,
},
]);
}
setIsUploading(false);
}
}}
multiple
ref={fileInputRef}
/>
<input
value={input}
placeholder="Send message..."
onChange={e => setInput(e.target.value)}
className="w-full p-2 bg-zinc-100"
disabled={status !== 'ready'}
/>
</form>
</div>
);
}