Node.js · fetch
Use Backfire from Node.js
Node 18 and later ship a global fetch(), so no dependency is needed. The relay call is a POST with a JSON body; the envelope comes back as JSON you can branch on immediately.
Notes for this client
- Works with the built-in fetch, axios, undici or got — no SDK to install.
- Keep the key in process.env, never in source; revoke it from the dashboard when needed.
- Send body as an object for JSON payloads, or body_base64 for binary uploads.
- Check envelope.ok first, then read envelope.upstream.status for the upstream result.
Working example
node
const res = await fetch('https://backfireapi.base44.app/functions/forward', {
method: 'POST',
headers: {
Authorization: `Bearer ${process.env.BACKFIRE_KEY}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({
url: 'https://api.github.com/zen',
method: 'GET',
timeout_ms: 8000,
}),
});
const envelope = await res.json();
if (!envelope.ok) throw new Error(envelope.error.code);
console.log(envelope.upstream.status); // 200
console.log(envelope.body.text); // upstream payload
console.log(envelope.meta.trips_charged); // 1
console.log(envelope.quota.remaining); // balance after the callQuestions about this
Other languages
Try it with 5,000 free trips.
No card, no subscription, and the balance never expires.