Files
exercises/w14_olama/stream.js
Andrea Bianchi eb90d6d787 Updated stream
2026-06-01 11:25:06 +09:00

61 lines
1.6 KiB
JavaScript

const endpoint = 'http://10.249.196.59:11434/api/generate';
const options = {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
model: 'deepseek-r1:latest',
prompt: 'Tell me a very long joke!',
stream: true,
think: false,
}),
};
fetch(endpoint, options)
.then((res) => {
const reader = res.body.getReader();
const decoder = new TextDecoder();
let buffer = '';
reader.read().then(async ({ done, value }) => {
while (!done) {
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split(/\r?\n/);
buffer = lines.pop() ?? ''; // keep partial line for next chunk
for (const rawLine of lines) {
const line = rawLine.trim();
if (!line) continue;
let payload = line;
if (payload.startsWith('data:')) {
payload = payload.slice(5).trim();
}
if (!payload || payload === '[DONE]') continue;
try {
const parsed = JSON.parse(payload);
process.stdout.write(parsed.response ?? parsed.text ?? '');
} catch (err) {
// If this chunk is not valid JSON, print it as raw text as a fallback.
process.stdout.write(payload);
}
}
({ done, value } = await reader.read());
}
if (buffer) {
try {
const parsed = JSON.parse(buffer);
process.stdout.write(parsed.response ?? parsed.text ?? '');
} catch (err) {
process.stdout.write(buffer);
}
}
});
})
.catch(console.error);