This repository has been archived by the owner on Dec 15, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 11
/
http.d.ts
902 lines (902 loc) · 32.8 KB
/
http.d.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
/**
* To use the HTTP server and client one must `require('http')`.
*
* The HTTP interfaces in Node.js are designed to support many features
* of the protocol which have been traditionally difficult to use.
* In particular, large, possibly chunk-encoded, messages. The interface is
* careful to never buffer entire requests or responses, so the
* user is able to stream data.
*
* HTTP message headers are represented by an object like this:
*
* ```js
* { 'content-length': '123',
* 'content-type': 'text/plain',
* 'connection': 'keep-alive',
* 'host': 'example.com',
* 'accept': '*' }
* ```
*
* Keys are lowercased. Values are not modified.
*
* In order to support the full spectrum of possible HTTP applications, the Node.js
* HTTP API is very low-level. It deals with stream handling and message
* parsing only. It parses a message into headers and body but it does not
* parse the actual headers or the body.
*
* See `message.headers` for details on how duplicate headers are handled.
*
* The raw headers as they were received are retained in the `rawHeaders`property, which is an array of `[key, value, key2, value2, ...]`. For
* example, the previous message header object might have a `rawHeaders`list like the following:
*
* ```js
* [ 'ConTent-Length', '123456',
* 'content-LENGTH', '123',
* 'content-type', 'text/plain',
* 'CONNECTION', 'keep-alive',
* 'Host', 'example.com',
* 'accepT', '*' ]
* ```
* @see [source](https://github.com/nodejs/node/blob/v18.0.0/lib/http.js)
*/
declare module "http" {
import * as stream from "node:stream";
// incoming headers will never contain number
interface IncomingHttpHeaders extends Dict<string | string[]> {
accept?: string | undefined;
"accept-language"?: string | undefined;
"accept-patch"?: string | undefined;
"accept-ranges"?: string | undefined;
"access-control-allow-credentials"?: string | undefined;
"access-control-allow-headers"?: string | undefined;
"access-control-allow-methods"?: string | undefined;
"access-control-allow-origin"?: string | undefined;
"access-control-expose-headers"?: string | undefined;
"access-control-max-age"?: string | undefined;
"access-control-request-headers"?: string | undefined;
"access-control-request-method"?: string | undefined;
age?: string | undefined;
allow?: string | undefined;
"alt-svc"?: string | undefined;
authorization?: string | undefined;
"cache-control"?: string | undefined;
connection?: string | undefined;
"content-disposition"?: string | undefined;
"content-encoding"?: string | undefined;
"content-language"?: string | undefined;
"content-length"?: string | undefined;
"content-location"?: string | undefined;
"content-range"?: string | undefined;
"content-type"?: string | undefined;
cookie?: string | undefined;
date?: string | undefined;
etag?: string | undefined;
expect?: string | undefined;
expires?: string | undefined;
forwarded?: string | undefined;
from?: string | undefined;
host?: string | undefined;
"if-match"?: string | undefined;
"if-modified-since"?: string | undefined;
"if-none-match"?: string | undefined;
"if-unmodified-since"?: string | undefined;
"last-modified"?: string | undefined;
location?: string | undefined;
origin?: string | undefined;
pragma?: string | undefined;
"proxy-authenticate"?: string | undefined;
"proxy-authorization"?: string | undefined;
"public-key-pins"?: string | undefined;
range?: string | undefined;
referer?: string | undefined;
"retry-after"?: string | undefined;
"sec-websocket-accept"?: string | undefined;
"sec-websocket-extensions"?: string | undefined;
"sec-websocket-key"?: string | undefined;
"sec-websocket-protocol"?: string | undefined;
"sec-websocket-version"?: string | undefined;
"set-cookie"?: string[] | undefined;
"strict-transport-security"?: string | undefined;
tk?: string | undefined;
trailer?: string | undefined;
"transfer-encoding"?: string | undefined;
upgrade?: string | undefined;
"user-agent"?: string | undefined;
vary?: string | undefined;
via?: string | undefined;
warning?: string | undefined;
"www-authenticate"?: string | undefined;
}
// outgoing headers allows numbers (as they are converted internally to strings)
type OutgoingHttpHeader = number | string | string[];
interface OutgoingHttpHeaders extends Dict<OutgoingHttpHeader> {}
interface ClientRequestArgs {
signal?: AbortSignal | undefined;
protocol?: string | null | undefined;
host?: string | null | undefined;
hostname?: string | null | undefined;
family?: number | undefined;
port?: number | string | null | undefined;
defaultPort?: number | string | undefined;
localAddress?: string | undefined;
socketPath?: string | undefined;
/**
* @default 8192
*/
maxHeaderSize?: number | undefined;
method?: string | undefined;
path?: string | null | undefined;
headers?: OutgoingHttpHeaders | undefined;
auth?: string | null | undefined;
timeout?: number | undefined;
setHost?: boolean | undefined;
}
interface InformationEvent {
statusCode: number;
statusMessage: string;
httpVersion: string;
httpVersionMajor: number;
httpVersionMinor: number;
headers: IncomingHttpHeaders;
rawHeaders: string[];
}
/**
* This object is created internally and returned from {@link request}. It
* represents an _in-progress_ request whose header has already been queued. The
* header is still mutable using the `setHeader(name, value)`,`getHeader(name)`, `removeHeader(name)` API. The actual header will
* be sent along with the first data chunk or when calling `request.end()`.
*
* To get the response, add a listener for `'response'` to the request object.`'response'` will be emitted from the request object when the response
* headers have been received. The `'response'` event is executed with one
* argument which is an instance of {@link IncomingMessage}.
*
* During the `'response'` event, one can add listeners to the
* response object; particularly to listen for the `'data'` event.
*
* If no `'response'` handler is added, then the response will be
* entirely discarded. However, if a `'response'` event handler is added,
* then the data from the response object **must** be consumed, either by
* calling `response.read()` whenever there is a `'readable'` event, or
* by adding a `'data'` handler, or by calling the `.resume()` method.
* Until the data is consumed, the `'end'` event will not fire. Also, until
* the data is read it will consume memory that can eventually lead to a
* 'process out of memory' error.
*
* For backward compatibility, `res` will only emit `'error'` if there is an`'error'` listener registered.
*
* Node.js does not check whether Content-Length and the length of the
* body which has been transmitted are equal or not.
*/
class ClientRequest {
/**
* The `request.aborted` property will be `true` if the request has
* been aborted.
* @deprecated Since v17.0.0,v16.12.0 - Check `destroyed` instead.
*/
aborted: boolean;
/**
* The request host.
*/
host: string;
/**
* The request protocol.
*/
protocol: string;
/**
* When sending request through a keep-alive enabled agent, the underlying socket
* might be reused. But if server closes connection at unfortunate time, client
* may run into a 'ECONNRESET' error.
*
* ```js
* const http = require('http');
*
* // Server has a 5 seconds keep-alive timeout by default
* http
* .createServer((req, res) => {
* res.write('hello\n');
* res.end();
* })
* .listen(3000);
*
* setInterval(() => {
* // Adapting a keep-alive agent
* http.get('http://localhost:3000', { agent }, (res) => {
* res.on('data', (data) => {
* // Do nothing
* });
* });
* }, 5000); // Sending request on 5s interval so it's easy to hit idle timeout
* ```
*
* By marking a request whether it reused socket or not, we can do
* automatic error retry base on it.
*
* ```js
* const http = require('http');
* const agent = new http.Agent({ keepAlive: true });
*
* function retriableRequest() {
* const req = http
* .get('http://localhost:3000', { agent }, (res) => {
* // ...
* })
* .on('error', (err) => {
* // Check if retry is needed
* if (req.reusedSocket && err.code === 'ECONNRESET') {
* retriableRequest();
* }
* });
* }
*
* retriableRequest();
* ```
*/
reusedSocket: boolean;
/**
* Limits maximum response headers count. If set to 0, no limit will be applied.
*/
maxHeadersCount: number;
constructor(
url: string | URL | ClientRequestArgs,
cb?: (res: IncomingMessage) => void
);
/**
* The request method.
*/
method: string;
/**
* The request path.
*/
path: string;
/**
* Marks the request as aborting. Calling this will cause remaining data
* in the response to be dropped and the socket to be destroyed.
* @deprecated Since v14.1.0,v13.14.0 - Use `destroy` instead.
*/
abort(): void;
/**
* Once a socket is assigned to this request and is connected `socket.setTimeout()` will be called.
* @param timeout Milliseconds before a request times out.
* @param callback Optional function to be called when a timeout occurs. Same as binding to the `'timeout'` event.
*/
setTimeout(timeout: number, callback?: () => void): this;
/**
* Sets a single header value for the header object.
* @param name Header name
* @param value Header value
*/
setHeader(
name: string,
value: number | string | ReadonlyArray<string>
): this;
/**
* Gets the value of HTTP header with the given name. If such a name doesn't
* exist in message, it will be `undefined`.
* @param name Name of header
*/
getHeader(name: string): number | string | string[] | undefined;
/**
* Removes a header that is queued for implicit sending.
*
* ```js
* outgoingMessage.removeHeader('Content-Encoding');
* ```
* @param name Header name
*/
removeHeader(name: string): void;
/**
* Compulsorily flushes the message headers
*
* For efficiency reason, Node.js normally buffers the message headers
* until `outgoingMessage.end()` is called or the first chunk of message data
* is written. It then tries to pack the headers and data into a single TCP
* packet.
*
* It is usually desired (it saves a TCP round-trip), but not when the first
* data is not sent until possibly much later. `outgoingMessage.flushHeaders()`bypasses the optimization and kickstarts the request.
*/
flushHeaders(): void;
/**
* Once a socket is assigned to this request and is connected `socket.setNoDelay()` will be called.
*/
setNoDelay(noDelay?: boolean): void;
/**
* Once a socket is assigned to this request and is connected `socket.setKeepAlive()` will be called.
*/
setSocketKeepAlive(enable?: boolean, initialDelay?: number): void;
/**
* Returns an array containing the unique names of the current outgoing raw
* headers. Header names are returned with their exact casing being set.
*
* ```js
* request.setHeader('Foo', 'bar');
* request.setHeader('Set-Cookie', ['foo=bar', 'bar=baz']);
*
* const headerNames = request.getRawHeaderNames();
* // headerNames === ['Foo', 'Set-Cookie']
* ```
*/
getRawHeaderNames(): string[];
/**
* @deprecated
*/
addListener(event: "abort", listener: () => void): this;
addListener(event: "continue", listener: () => void): this;
addListener(
event: "information",
listener: (info: InformationEvent) => void
): this;
addListener(
event: "response",
listener: (response: IncomingMessage) => void
): this;
addListener(event: "timeout", listener: () => void): this;
addListener(event: "close", listener: () => void): this;
addListener(event: "drain", listener: () => void): this;
addListener(event: "error", listener: (err: Error) => void): this;
addListener(event: "finish", listener: () => void): this;
addListener(event: "pipe", listener: (src: stream.Readable) => void): this;
addListener(
event: "unpipe",
listener: (src: stream.Readable) => void
): this;
addListener(
event: string | symbol,
listener: (...args: any[]) => void
): this;
/**
* @deprecated
*/
on(event: "abort", listener: () => void): this;
on(event: "continue", listener: () => void): this;
on(event: "information", listener: (info: InformationEvent) => void): this;
on(event: "response", listener: (response: IncomingMessage) => void): this;
on(event: "timeout", listener: () => void): this;
on(event: "close", listener: () => void): this;
on(event: "drain", listener: () => void): this;
on(event: "error", listener: (err: Error) => void): this;
on(event: "finish", listener: () => void): this;
on(event: "pipe", listener: (src: stream.Readable) => void): this;
on(event: "unpipe", listener: (src: stream.Readable) => void): this;
on(event: string | symbol, listener: (...args: any[]) => void): this;
/**
* @deprecated
*/
once(event: "abort", listener: () => void): this;
once(event: "continue", listener: () => void): this;
once(
event: "information",
listener: (info: InformationEvent) => void
): this;
once(
event: "response",
listener: (response: IncomingMessage) => void
): this;
once(event: "timeout", listener: () => void): this;
once(event: "close", listener: () => void): this;
once(event: "drain", listener: () => void): this;
once(event: "error", listener: (err: Error) => void): this;
once(event: "finish", listener: () => void): this;
once(event: "pipe", listener: (src: stream.Readable) => void): this;
once(event: "unpipe", listener: (src: stream.Readable) => void): this;
once(event: string | symbol, listener: (...args: any[]) => void): this;
/**
* @deprecated
*/
prependListener(event: "abort", listener: () => void): this;
prependListener(event: "continue", listener: () => void): this;
prependListener(
event: "information",
listener: (info: InformationEvent) => void
): this;
prependListener(
event: "response",
listener: (response: IncomingMessage) => void
): this;
prependListener(event: "timeout", listener: () => void): this;
prependListener(event: "close", listener: () => void): this;
prependListener(event: "drain", listener: () => void): this;
prependListener(event: "error", listener: (err: Error) => void): this;
prependListener(event: "finish", listener: () => void): this;
prependListener(
event: "pipe",
listener: (src: stream.Readable) => void
): this;
prependListener(
event: "unpipe",
listener: (src: stream.Readable) => void
): this;
prependListener(
event: string | symbol,
listener: (...args: any[]) => void
): this;
/**
* @deprecated
*/
prependOnceListener(event: "abort", listener: () => void): this;
prependOnceListener(event: "continue", listener: () => void): this;
prependOnceListener(
event: "information",
listener: (info: InformationEvent) => void
): this;
prependOnceListener(
event: "response",
listener: (response: IncomingMessage) => void
): this;
prependOnceListener(event: "timeout", listener: () => void): this;
prependOnceListener(event: "close", listener: () => void): this;
prependOnceListener(event: "drain", listener: () => void): this;
prependOnceListener(event: "error", listener: (err: Error) => void): this;
prependOnceListener(event: "finish", listener: () => void): this;
prependOnceListener(
event: "pipe",
listener: (src: stream.Readable) => void
): this;
prependOnceListener(
event: "unpipe",
listener: (src: stream.Readable) => void
): this;
prependOnceListener(
event: string | symbol,
listener: (...args: any[]) => void
): this;
}
/**
* An `IncomingMessage` object is created by {@link Server} or {@link ClientRequest} and passed as the first argument to the `'request'` and `'response'` event respectively. It may be used to
* access response
* status, headers and data.
*
* Different from its `socket` value which is a subclass of `stream.Duplex`, the`IncomingMessage` itself extends `stream.Readable` and is created separately to
* parse and emit the incoming HTTP headers and payload, as the underlying socket
* may be reused multiple times in case of keep-alive.
*/
class IncomingMessage extends stream.Readable {
/**
* The `message.aborted` property will be `true` if the request has
* been aborted.
* @deprecated Since v17.0.0,v16.12.0 - Check `message.destroyed` from <a href="stream.html#class-streamreadable" class="type">stream.Readable</a>.
*/
aborted: boolean;
/**
* In case of server request, the HTTP version sent by the client. In the case of
* client response, the HTTP version of the connected-to server.
* Probably either `'1.1'` or `'1.0'`.
*
* Also `message.httpVersionMajor` is the first integer and`message.httpVersionMinor` is the second.
*/
httpVersion: string;
httpVersionMajor: number;
httpVersionMinor: number;
/**
* The `message.complete` property will be `true` if a complete HTTP message has
* been received and successfully parsed.
*
* This property is particularly useful as a means of determining if a client or
* server fully transmitted a message before a connection was terminated:
*
* ```js
* const req = http.request({
* host: '127.0.0.1',
* port: 8080,
* method: 'POST'
* }, (res) => {
* res.resume();
* res.on('end', () => {
* if (!res.complete)
* console.error(
* 'The connection was terminated while the message was still being sent');
* });
* });
* ```
*/
complete: boolean;
/**
* The request/response headers object.
*
* Key-value pairs of header names and values. Header names are lower-cased.
*
* ```js
* // Prints something like:
* //
* // { 'user-agent': 'curl/7.22.0',
* // host: '127.0.0.1:8000',
* // accept: '*' }
* console.log(request.getHeaders());
* ```
*
* Duplicates in raw headers are handled in the following ways, depending on the
* header name:
*
* * Duplicates of `age`, `authorization`, `content-length`, `content-type`,`etag`, `expires`, `from`, `host`, `if-modified-since`, `if-unmodified-since`,`last-modified`, `location`,
* `max-forwards`, `proxy-authorization`, `referer`,`retry-after`, `server`, or `user-agent` are discarded.
* * `set-cookie` is always an array. Duplicates are added to the array.
* * For duplicate `cookie` headers, the values are joined together with '; '.
* * For all other headers, the values are joined together with ', '.
*/
headers: IncomingHttpHeaders;
/**
* The raw request/response headers list exactly as they were received.
*
* The keys and values are in the same list. It is _not_ a
* list of tuples. So, the even-numbered offsets are key values, and the
* odd-numbered offsets are the associated values.
*
* Header names are not lowercased, and duplicates are not merged.
*
* ```js
* // Prints something like:
* //
* // [ 'user-agent',
* // 'this is invalid because there can be only one',
* // 'User-Agent',
* // 'curl/7.22.0',
* // 'Host',
* // '127.0.0.1:8000',
* // 'ACCEPT',
* // '*' ]
* console.log(request.rawHeaders);
* ```
*/
rawHeaders: string[];
/**
* The request/response trailers object. Only populated at the `'end'` event.
*/
trailers: Dict<string>;
/**
* The raw request/response trailer keys and values exactly as they were
* received. Only populated at the `'end'` event.
*/
rawTrailers: string[];
/**
* Calls `message.socket.setTimeout(msecs, callback)`.
*/
setTimeout(msecs: number, callback?: () => void): this;
/**
* **Only valid for request obtained from {@link Server}.**
*
* The request method as a string. Read only. Examples: `'GET'`, `'DELETE'`.
*/
method?: string | undefined;
/**
* **Only valid for request obtained from {@link Server}.**
*
* Request URL string. This contains only the URL that is present in the actual
* HTTP request. Take the following request:
*
* ```http
* GET /status?name=ryan HTTP/1.1
* Accept: text/plain
* ```
*
* To parse the URL into its parts:
*
* ```js
* new URL(request.url, `http://${request.getHeaders().host}`);
* ```
*
* When `request.url` is `'/status?name=ryan'` and`request.getHeaders().host` is `'localhost:3000'`:
*
* ```console
* $ node
* > new URL(request.url, `http://${request.getHeaders().host}`)
* URL {
* href: 'http://localhost:3000/status?name=ryan',
* origin: 'http://localhost:3000',
* protocol: 'http:',
* username: '',
* password: '',
* host: 'localhost:3000',
* hostname: 'localhost',
* port: '3000',
* pathname: '/status',
* search: '?name=ryan',
* searchParams: URLSearchParams { 'name' => 'ryan' },
* hash: ''
* }
* ```
*/
url?: string | undefined;
/**
* **Only valid for response obtained from {@link ClientRequest}.**
*
* The 3-digit HTTP response status code. E.G. `404`.
*/
statusCode?: number | undefined;
/**
* **Only valid for response obtained from {@link ClientRequest}.**
*
* The HTTP response status message (reason phrase). E.G. `OK` or `Internal Server Error`.
*/
statusMessage?: string | undefined;
/**
* Calls `destroy()` on the socket that received the `IncomingMessage`. If `error`is provided, an `'error'` event is emitted on the socket and `error` is passed
* as an argument to any listeners on the event.
*/
destroy(error?: Error): this;
}
const METHODS: string[];
const STATUS_CODES: {
[errorCode: number]: string | undefined;
[errorCode: string]: string | undefined;
};
// although RequestOptions are passed as ClientRequestArgs to ClientRequest directly,
// create interface RequestOptions would make the naming more clear to developers
interface RequestOptions extends ClientRequestArgs {}
/**
* `options` in `socket.connect()` are also supported.
*
* Node.js maintains several connections per server to make HTTP requests.
* This function allows one to transparently issue requests.
*
* `url` can be a string or a `URL` object. If `url` is a
* string, it is automatically parsed with `new URL()`. If it is a `URL` object, it will be automatically converted to an ordinary `options` object.
*
* If both `url` and `options` are specified, the objects are merged, with the`options` properties taking precedence.
*
* The optional `callback` parameter will be added as a one-time listener for
* the `'response'` event.
*
* `http.request()` returns an instance of the {@link ClientRequest} class. The `ClientRequest` instance is a writable stream. If one needs to
* upload a file with a POST request, then write to the `ClientRequest` object.
*
* ```js
* const http = require('http');
*
* const postData = JSON.stringify({
* 'msg': 'Hello World!'
* });
*
* const options = {
* hostname: 'www.google.com',
* port: 80,
* path: '/upload',
* method: 'POST',
* headers: {
* 'Content-Type': 'application/json',
* 'Content-Length': Buffer.byteLength(postData)
* }
* };
*
* const req = http.request(options, (res) => {
* console.log(`STATUS: ${res.statusCode}`);
* console.log(`HEADERS: ${JSON.stringify(res.headers)}`);
* res.setEncoding('utf8');
* res.on('data', (chunk) => {
* console.log(`BODY: ${chunk}`);
* });
* res.on('end', () => {
* console.log('No more data in response.');
* });
* });
*
* req.on('error', (e) => {
* console.error(`problem with request: ${e.message}`);
* });
*
* // Write data to request body
* req.write(postData);
* req.end();
* ```
*
* In the example `req.end()` was called. With `http.request()` one
* must always call `req.end()` to signify the end of the request -
* even if there is no data being written to the request body.
*
* If any error is encountered during the request (be that with DNS resolution,
* TCP level errors, or actual HTTP parse errors) an `'error'` event is emitted
* on the returned request object. As with all `'error'` events, if no listeners
* are registered the error will be thrown.
*
* There are a few special headers that should be noted.
*
* * Sending a 'Connection: keep-alive' will notify Node.js that the connection to
* the server should be persisted until the next request.
* * Sending a 'Content-Length' header will disable the default chunked encoding.
* * Sending an 'Expect' header will immediately send the request headers.
* Usually, when sending 'Expect: 100-continue', both a timeout and a listener
* for the `'continue'` event should be set. See RFC 2616 Section 8.2.3 for more
* information.
* * Sending an Authorization header will override using the `auth` option
* to compute basic authentication.
*
* Example using a `URL` as `options`:
*
* ```js
* const options = new URL('http://abc:[email protected]');
*
* const req = http.request(options, (res) => {
* // ...
* });
* ```
*
* In a successful request, the following events will be emitted in the following
* order:
*
* * `'socket'`
* * `'response'`
* * `'data'` any number of times, on the `res` object
* (`'data'` will not be emitted at all if the response body is empty, for
* instance, in most redirects)
* * `'end'` on the `res` object
* * `'close'`
*
* In the case of a connection error, the following events will be emitted:
*
* * `'socket'`
* * `'error'`
* * `'close'`
*
* In the case of a premature connection close before the response is received,
* the following events will be emitted in the following order:
*
* * `'socket'`
* * `'error'` with an error with message `'Error: socket hang up'` and code`'ECONNRESET'`
* * `'close'`
*
* In the case of a premature connection close 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
* * (connection closed here)
* * `'aborted'` on the `res` object
* * `'error'` on the `res` object with an error with message`'Error: aborted'` and code `'ECONNRESET'`.
* * `'close'`
* * `'close'` on the `res` object
*
* 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
* * `'error'` on the `res` object with an error with message`'Error: aborted'` and code `'ECONNRESET'`.
* * `'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)
* * `'abort'`
* * `'error'` with an error with message `'Error: socket hang up'` and code`'ECONNRESET'`
* * `'close'`
*
* If `req.abort()` 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.abort()` called here)
* * `'abort'`
* * `'aborted'` on the `res` object
* * `'error'` on the `res` object with an error with message`'Error: aborted'` and code `'ECONNRESET'`.
* * `'close'`
* * `'close'` on the `res` object
*
* Setting the `timeout` option or using the `setTimeout()` function will
* not abort the request or do anything besides add a `'timeout'` event.
*
* Passing an `AbortSignal` and then calling `abort` on the corresponding`AbortController` will behave the same way as calling `.destroy()` on the
* request itself.
*/
function request(
options: RequestOptions | string | URL,
callback?: (res: IncomingMessage) => void
): ClientRequest;
function request(
url: string | URL,
options: RequestOptions,
callback?: (res: IncomingMessage) => void
): ClientRequest;
/**
* Since most requests are GET requests without bodies, Node.js provides this
* convenience method. The only difference between this method and {@link request} is that it sets the method to GET and calls `req.end()`automatically. The callback must take care to consume the
* response
* data for reasons stated in {@link ClientRequest} section.
*
* The `callback` is invoked with a single argument that is an instance of {@link IncomingMessage}.
*
* JSON fetching example:
*
* ```js
* http.get('http://localhost:8000/', (res) => {
* const { statusCode } = res;
* const contentType = res.headers['content-type'];
*
* let error;
* // Any 2xx status code signals a successful response but
* // here we're only checking for 200.
* if (statusCode !== 200) {
* error = new Error('Request Failed.\n' +
* `Status Code: ${statusCode}`);
* } else if (!/^application\/json/.test(contentType)) {
* error = new Error('Invalid content-type.\n' +
* `Expected application/json but received ${contentType}`);
* }
* if (error) {
* console.error(error.message);
* // Consume response data to free up memory
* res.resume();
* return;
* }
*
* res.setEncoding('utf8');
* let rawData = '';
* res.on('data', (chunk) => { rawData += chunk; });
* res.on('end', () => {
* try {
* const parsedData = JSON.parse(rawData);
* console.log(parsedData);
* } catch (e) {
* console.error(e.message);
* }
* });
* }).on('error', (e) => {
* console.error(`Got error: ${e.message}`);
* });
*
* // Create a local server to receive data from
* const server = http.createServer((req, res) => {
* res.writeHead(200, { 'Content-Type': 'application/json' });
* res.end(JSON.stringify({
* data: 'Hello World!'
* }));
* });
*
* server.listen(8000);
* ```
* @param options Accepts the same `options` as {@link request}, with the `method` always set to `GET`. Properties that are inherited from the prototype are ignored.
*/
function get(
options: RequestOptions | string | URL,
callback?: (res: IncomingMessage) => void
): ClientRequest;
function get(
url: string | URL,
options: RequestOptions,
callback?: (res: IncomingMessage) => void
): ClientRequest;
/**
* Read-only property specifying the maximum allowed size of HTTP headers in bytes.
* Defaults to 16KB. Configurable using the `--max-http-header-size` CLI option.
*/
const maxHeaderSize: number;
}
declare module "node:http" {
export * from "http";
}
// XXX: temporary types till theres a proper http(s) module
declare module "https" {
export * from "http";
}
declare module "node:https" {
export * from "http";
}