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fix: handle errors from the request body stream #1392

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Merged
merged 3 commits into from
Nov 19, 2021
Merged

fix: handle errors from the request body stream #1392

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3040ef5
fix: handle errors from the request body stream
mdmitry01 Nov 18, 2021
b3b3e20
lint: fix linting
LinusU Nov 19, 2021
6de3300
lint: fix linting
LinusU Nov 19, 2021
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fix: handle errors from the request body stream
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@mdmitry01
mdmitry01 committed Nov 18, 2021
commit 3040ef53a78f805e18ca18f98450fe0d95d149d8
3 changes: 3 additions & 0 deletions docs/CHANGELOG.md
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Expand Up @@ -4,6 +4,9 @@ All notable changes will be recorded here.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## Unreleased
* fix: handle errors from the request body stream by @mdmitry01 in https://github.com/node-fetch/node-fetch/pull/1392

## 3.1.0

## What's Changed
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9 changes: 5 additions & 4 deletions src/body.js
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Expand Up @@ -6,7 +6,7 @@
*/

import Stream, {PassThrough} from 'node:stream';
import {types, deprecate} from 'node:util';
import {types, deprecate, promisify} from 'node:util';

import Blob from 'fetch-blob';
import {FormData, formDataToBlob} from 'formdata-polyfill/esm.min.js';
Expand All @@ -15,6 +15,7 @@ import {FetchError} from './errors/fetch-error.js';
import {FetchBaseError} from './errors/base.js';
import {isBlob, isURLSearchParameters} from './utils/is.js';

const pipeline = promisify(Stream.pipeline);
const INTERNALS = Symbol('Body internals');

/**
Expand Down Expand Up @@ -379,14 +380,14 @@ export const getTotalBytes = request => {
*
* @param {Stream.Writable} dest The stream to write to.
* @param obj.body Body object from the Body instance.
* @returns {void}
* @returns {Promise<void>}
*/
export const writeToStream = (dest, {body}) => {
export const writeToStream = async (dest, {body}) => {
if (body === null) {
// Body is null
dest.end();
} else {
// Body is stream
body.pipe(dest);
await pipeline(body, dest);
}
};
2 changes: 1 addition & 1 deletion src/index.js
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Expand Up @@ -291,7 +291,7 @@ export default async function fetch(url, options_) {
resolve(response);
});

writeToStream(request_, request);
writeToStream(request_, request).catch(reject);
});
}

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15 changes: 15 additions & 0 deletions test/main.js
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Expand Up @@ -1456,6 +1456,21 @@ describe('node-fetch', () => {
});
});

it('should reject if the request body stream emits an error', () => {
const url = `${base}inspect`;
const requestBody = new stream.PassThrough();
const options = {
method: 'POST',
body: requestBody
};
const errorMessage = 'request body stream error'
setImmediate(() => {
requestBody.emit('error', new Error(errorMessage));
});
return expect(fetch(url, options))
.to.be.rejectedWith(Error, errorMessage);
});

it('should allow POST request with form-data as body', () => {
const form = new FormData();
form.append('a', '1');
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