Timeout error when calling external API from node.js

I have the following index.js(node v19.6.0) with POST request that calls external API and register a webhook. The url of the hook I am registering already works and tested it.

I googled the error but I couldn't find any results. The error comes when I call /register/hook method. It shows that there is a timeout but doesn't give me much more detail. Is the issue from the API provider or the way I am making REST calls ?

The code was generated by Alchemy.

const express = require('express');
const app = express();
const port = 8080;
app.listen(port, () => { console.log(`listening on port ${port}`)
})
app.post("/register/hook", (req, res) => { const options = { method: 'POST', headers: { accept: 'application/json', 'X-Alchemy-Token': 'abc...def', 'content-type': 'application/json' }, body: JSON.stringify({ AddressWebhookParams: {addresses: ['0xe592427a0aece92de3edee1f18e0157c05861564']}, url: ' type: 'ADDRESS_ACTIVITY' }) }; fetch(' options) .then(response => response.json()) .then(response => console.log(response)) .catch(err => console.error(err));
})

Here is the error:

TypeError: fetch failed at Object.fetch (node:internal/deps/undici/undici:12789:11) at process.processTicksAndRejections (node:internal/process/task_queues:95:5) { cause: ConnectTimeoutError: Connect Timeout Error at onConnectTimeout (node:internal/deps/undici/undici:8236:28) at node:internal/deps/undici/undici:8194:50 at Immediate._onImmediate (node:internal/deps/undici/undici:8225:13) at process.processImmediate (node:internal/timers:475:21) { code: 'UND_ERR_CONNECT_TIMEOUT' }
} [1]: 

3 Answers

I fixed it by adding

import { fetch, setGlobalDispatcher, Agent } from 'undici'
...
setGlobalDispatcher(new Agent({ connect: { timeout: 60_000 } }) )

before my fetch to configure the timeout. Of course you should first install undici

Double check url and parameters, everything else seems fine. It usually has timeout issue if url does not exist or maybe their servers are temporarily down. Also I would recommend using axios. It would avoid you trouble like setting extra content headers.

If you don't send back a response from your handler, the client will wait indefinitely, or until it gives up:

 fetch(' options) .then(response => response.json()) .then(response => console.log(response)) .catch(err => console.error(err)) .finally(() => res.end()); // end the response process

More info here.