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http: doc deprecate abort and improve docs
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Doc deprecates ClientRequest.abort in favor of
ClientRequest.destroy. Also improves event order
documentation for abort and destroy.

Refs: #32225

PR-URL: #32807
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
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ronag authored and BridgeAR committed Apr 28, 2020
1 parent 48a72bf commit 4d9e69d
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15 changes: 15 additions & 0 deletions doc/api/deprecations.md
Expand Up @@ -2569,6 +2569,19 @@ accordingly instead to avoid the ambigiuty.
To maintain existing behaviour `response.finished` should be replaced with
`response.writableEnded`.
<a id="DEP0XXX"></a>
### DEP0XXX: Use `request.destroy()` instead of `request.abort()`
<!-- YAML
changes:
- version: REPLACEME
pr-url: https://github.com/nodejs/node/pull/32807
description: Documentation-only deprecation.
-->
Type: Documentation-only
Use [`request.destroy()`][] instead of [`request.abort()`][].
[`--pending-deprecation`]: cli.html#cli_pending_deprecation
[`--throw-deprecation`]: cli.html#cli_throw_deprecation
[`Buffer.allocUnsafeSlow(size)`]: buffer.html#buffer_class_method_buffer_allocunsafeslow_size
Expand Down Expand Up @@ -2627,8 +2640,10 @@ To maintain existing behaviour `response.finished` should be replaced with
[`process.env`]: process.html#process_process_env
[`punycode`]: punycode.html
[`require.extensions`]: modules.html#modules_require_extensions
[`request.abort()`]: http.html#http_request_abort
[`request.socket`]: http.html#http_request_socket
[`request.connection`]: http.html#http_request_connection
[`request.destroy()`]: http.html#http_request_destroy_error
[`response.socket`]: http.html#http_response_socket
[`response.connection`]: http.html#http_response_connection
[`response.end()`]: http.html#http_response_end_data_encoding_callback
Expand Down
72 changes: 68 additions & 4 deletions doc/api/http.md
Expand Up @@ -568,6 +568,7 @@ server.listen(1337, '127.0.0.1', () => {
### `request.abort()`
<!-- YAML
added: v0.3.8
deprecated: REPLACEME
-->

Marks the request as aborting. Calling this will cause remaining data
Expand Down Expand Up @@ -623,6 +624,31 @@ If `data` is specified, it is equivalent to calling
If `callback` is specified, it will be called when the request stream
is finished.

### `request.destroy([error])`
<!-- YAML
added: v0.3.0
-->

* `error` {Error} Optional, an error to emit with `'error'` event.
* Returns: {this}

Destroy the request. Optionally emit an `'error'` event,
and emit a `'close'` event. Calling this will cause remaining data
in the response to be dropped and the socket to be destroyed.

See [`writable.destroy()`][] for further details.

#### `request.destroyed`
<!-- YAML
added: REPLACEME
-->

* {boolean}

Is `true` after [`request.destroy()`][] has been called.

See [`writable.destroyed`][] for further details.

### `request.finished`
<!-- YAML
added: v0.0.1
Expand Down Expand Up @@ -2354,8 +2380,43 @@ the following events will be emitted in the following order:
* `'close'`
* `'close'` on the `res` object

If `req.abort()` is called before the connection succeeds, the following events
will be emitted in the following order:
If `req.destroy()` is called before a socket is assigned, the following
events will be emitted in the following order:

* (`req.destroy()` called here)
* `'error'` with an error with message `'Error: socket hang up'` and code
`'ECONNRESET'`
* `'close'`

If `req.destroy()` is called before the connection succeeds, the following
events will be emitted in the following order:

* `'socket'`
* (`req.destroy()` called here)
* `'error'` with an error with message `'Error: socket hang up'` and code
`'ECONNRESET'`
* `'close'`

If `req.destroy()` is called after the response is received, the following
events will be emitted in the following order:

* `'socket'`
* `'response'`
* `'data'` any number of times, on the `res` object
* (`req.destroy()` called here)
* `'aborted'` on the `res` object
* `'close'`
* `'close'` on the `res` object

If `req.abort()` is called before a socket is assigned, the following
events will be emitted in the following order:

* (`req.abort()` called here)
* `'abort'`
* `'close'`

If `req.abort()` is called before the connection succeeds, the following
events will be emitted in the following order:

* `'socket'`
* (`req.abort()` called here)
Expand All @@ -2364,8 +2425,8 @@ will be emitted in the following order:
`'ECONNRESET'`
* `'close'`

If `req.abort()` is called after the response is received, the following events
will be emitted in the following order:
If `req.abort()` is called after the response is received, the following
events will be emitted in the following order:

* `'socket'`
* `'response'`
Expand Down Expand Up @@ -2411,6 +2472,7 @@ not abort the request or do anything besides add a `'timeout'` event.
[`new URL()`]: url.html#url_constructor_new_url_input_base
[`removeHeader(name)`]: #http_request_removeheader_name
[`request.end()`]: #http_request_end_data_encoding_callback
[`request.destroy()`]: #http_request_destroy_error
[`request.flushHeaders()`]: #http_request_flushheaders
[`request.getHeader()`]: #http_request_getheader_name
[`request.setHeader()`]: #http_request_setheader_name_value
Expand Down Expand Up @@ -2440,5 +2502,7 @@ not abort the request or do anything besides add a `'timeout'` event.
[`socket.unref()`]: net.html#net_socket_unref
[`url.parse()`]: url.html#url_url_parse_urlstring_parsequerystring_slashesdenotehost
[`HPE_HEADER_OVERFLOW`]: errors.html#errors_hpe_header_overflow
[`writable.destroy()`]: stream.html#stream_writable_destroy_error
[`writable.destroyed`]: stream.html#stream_writable_destroyed
[`writable.cork()`]: stream.html#stream_writable_cork
[`writable.uncork()`]: stream.html#stream_writable_uncork

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