Class: ApiRequest

Hierarchy

IncomingMessage

↳ ApiRequest

Constructors

constructor

• new ApiRequest(socket): ApiRequest

Parameters

Name	Type
`socket`	`Socket`

Returns

ApiRequest

Inherited from

IncomingMessage.constructor

Defined in

node_modules/@types/node/http.d.ts:1137

Properties

aborted

• aborted: boolean

The message.aborted property will be true if the request has been aborted.

Since

v10.1.0

Deprecated

Since v17.0.0,v16.12.0 - Check message.destroyed from stream.Readable.

Inherited from

IncomingMessage.aborted

Defined in

node_modules/@types/node/http.d.ts:1144

auth

• Optional auth: null | AuthData

The authorization information. This field indicates three possible values:

undefined: The authorization middleware has not been executed yet.
null: The user is not authorized.
AuthData: The user is authorized.

Defined in

projects/plugins/packages/api/src/lib/structures/api/ApiRequest.ts:27

body

• Optional body: unknown

The body that was sent by the user.

Defined in

projects/plugins/packages/api/src/lib/structures/api/ApiRequest.ts:18

closed

• Readonly closed: boolean

Is true after 'close' has been emitted.

Since

v18.0.0

Inherited from

IncomingMessage.closed

Defined in

node_modules/@types/node/stream.d.ts:119

complete

• complete: boolean

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:

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');
  });
});

Since

v0.3.0

Inherited from

IncomingMessage.complete

Defined in

node_modules/@types/node/http.d.ts:1179

connection

• connection: Socket

Alias for message.socket.

Since

v0.1.90

Deprecated

Since v16.0.0 - Use socket.

Inherited from

IncomingMessage.connection

Defined in

node_modules/@types/node/http.d.ts:1185

destroyed

• destroyed: boolean

Is true after readable.destroy() has been called.

Since

v8.0.0

Inherited from

IncomingMessage.destroyed

Defined in

node_modules/@types/node/stream.d.ts:114

errored

• Readonly errored: null | Error

Returns error if the stream has been destroyed with an error.

Since

v18.0.0

Inherited from

IncomingMessage.errored

Defined in

node_modules/@types/node/stream.d.ts:124

headers

• headers: IncomingHttpHeaders

The request/response headers object.

Key-value pairs of header names and values. Header names are lower-cased.

// Prints something like:
//
// { 'user-agent': 'curl/7.22.0',
//   host: '127.0.0.1:8000',
//   accept: '*' }
console.log(request.headers);

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. To allow duplicate values of the headers listed above to be joined, use the option joinDuplicateHeaders in request and createServer. See RFC 9110 Section 5.3 for more information.
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 , .

Since

v0.1.5

Inherited from

IncomingMessage.headers

Defined in

node_modules/@types/node/http.d.ts:1225

headersDistinct

• headersDistinct: Dict<string[]>

Similar to message.headers, but there is no join logic and the values are always arrays of strings, even for headers received just once.

// Prints something like:
//
// { 'user-agent': ['curl/7.22.0'],
//   host: ['127.0.0.1:8000'],
//   accept: ['*'] }
console.log(request.headersDistinct);

Since

v18.3.0, v16.17.0

Inherited from

IncomingMessage.headersDistinct

Defined in

node_modules/@types/node/http.d.ts:1240

httpVersion

• httpVersion: string

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 andmessage.httpVersionMinor is the second.

Since

v0.1.1

Inherited from

IncomingMessage.httpVersion

Defined in

node_modules/@types/node/http.d.ts:1153

httpVersionMajor

• httpVersionMajor: number

Inherited from

IncomingMessage.httpVersionMajor

Defined in

node_modules/@types/node/http.d.ts:1154

httpVersionMinor

• httpVersionMinor: number

Inherited from

IncomingMessage.httpVersionMinor

Defined in

node_modules/@types/node/http.d.ts:1155

method

• Optional method: string

Only valid for request obtained from Server.

The request method as a string. Read only. Examples: 'GET', 'DELETE'.

Since

v0.1.1

Inherited from

IncomingMessage.method

Defined in

node_modules/@types/node/http.d.ts:1295

params

• params: Record<string, string> = {}

The URI parameters.

Defined in

projects/plugins/packages/api/src/lib/structures/api/ApiRequest.ts:13

query

• query: Record<string, string | string[]> = {}

The query parameters.

Defined in

projects/plugins/packages/api/src/lib/structures/api/ApiRequest.ts:8

rawHeaders

• rawHeaders: string[]

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.

// 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);

Since

v0.11.6

Inherited from

IncomingMessage.rawHeaders

Defined in

node_modules/@types/node/http.d.ts:1265

rawTrailers

• rawTrailers: string[]

The raw request/response trailer keys and values exactly as they were received. Only populated at the 'end' event.

Since

v0.11.6

Inherited from

IncomingMessage.rawTrailers

Defined in

node_modules/@types/node/http.d.ts:1283

readable

• readable: boolean

Is true if it is safe to call readable.read(), which means the stream has not been destroyed or emitted 'error' or 'end'.

Since

v11.4.0

Inherited from

IncomingMessage.readable

Defined in

node_modules/@types/node/stream.d.ts:70

readableAborted

• Readonly readableAborted: boolean

Returns whether the stream was destroyed or errored before emitting 'end'.

Since

v16.8.0

Inherited from

IncomingMessage.readableAborted

Defined in

node_modules/@types/node/stream.d.ts:64

readableDidRead

• Readonly readableDidRead: boolean

Returns whether 'data' has been emitted.

Since

v16.7.0, v14.18.0

Inherited from

IncomingMessage.readableDidRead

Defined in

node_modules/@types/node/stream.d.ts:76

readableEncoding

• Readonly readableEncoding: null | BufferEncoding

Getter for the property encoding of a given Readable stream. The encodingproperty can be set using the readable.setEncoding() method.

Since

v12.7.0

Inherited from

IncomingMessage.readableEncoding

Defined in

node_modules/@types/node/stream.d.ts:81

readableEnded

• Readonly readableEnded: boolean

Becomes true when 'end' event is emitted.

Since

v12.9.0

Inherited from

IncomingMessage.readableEnded

Defined in

node_modules/@types/node/stream.d.ts:86

readableFlowing

• Readonly readableFlowing: null | boolean

This property reflects the current state of a Readable stream as described in the Three states section.

Since

v9.4.0

Inherited from

IncomingMessage.readableFlowing

Defined in

node_modules/@types/node/stream.d.ts:92

readableHighWaterMark

• Readonly readableHighWaterMark: number

Returns the value of highWaterMark passed when creating this Readable.

Since

v9.3.0

Inherited from

IncomingMessage.readableHighWaterMark

Defined in

node_modules/@types/node/stream.d.ts:97

readableLength

• Readonly readableLength: number

This property contains the number of bytes (or objects) in the queue ready to be read. The value provides introspection data regarding the status of the highWaterMark.

Since

v9.4.0

Inherited from

IncomingMessage.readableLength

Defined in

node_modules/@types/node/stream.d.ts:104

readableObjectMode

• Readonly readableObjectMode: boolean

Getter for the property objectMode of a given Readable stream.

Since

v12.3.0

Inherited from

IncomingMessage.readableObjectMode

Defined in

node_modules/@types/node/stream.d.ts:109

socket

• socket: Socket

The net.Socket object associated with the connection.

With HTTPS support, use request.socket.getPeerCertificate() to obtain the client's authentication details.

This property is guaranteed to be an instance of the net.Socket class, a subclass of stream.Duplex, unless the user specified a socket type other than net.Socket or internally nulled.

Since

v0.3.0

Inherited from

IncomingMessage.socket

Defined in

node_modules/@types/node/http.d.ts:1197

statusCode

• Optional statusCode: number

Only valid for response obtained from ClientRequest.

The 3-digit HTTP response status code. E.G. 404.

Since

v0.1.1

Inherited from

IncomingMessage.statusCode

Defined in

node_modules/@types/node/http.d.ts:1342

statusMessage

• Optional statusMessage: string

Only valid for response obtained from ClientRequest.

The HTTP response status message (reason phrase). E.G. OK or Internal Server Error.

Since

v0.11.10

Inherited from

IncomingMessage.statusMessage

Defined in

node_modules/@types/node/http.d.ts:1349

trailers

• trailers: Dict<string>

The request/response trailers object. Only populated at the 'end' event.

Since

v0.3.0

Inherited from

IncomingMessage.trailers

Defined in

node_modules/@types/node/http.d.ts:1270

trailersDistinct

• trailersDistinct: Dict<string[]>

Similar to message.trailers, but there is no join logic and the values are always arrays of strings, even for headers received just once. Only populated at the 'end' event.

Since

v18.3.0, v16.17.0

Inherited from

IncomingMessage.trailersDistinct

Defined in

node_modules/@types/node/http.d.ts:1277

url

• Optional url: string

Only valid for request obtained from Server.

Request URL string. This contains only the URL that is present in the actual HTTP request. Take the following request:

GET /status?name=ryan HTTP/1.1
Accept: text/plain

To parse the URL into its parts:

new URL(request.url, `http://${request.headers.host}`);

When request.url is '/status?name=ryan' and request.headers.host is'localhost:3000':

$ node
> new URL(request.url, `http://${request.headers.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: ''
}

Since

v0.1.90

Inherited from

IncomingMessage.url

Defined in

node_modules/@types/node/http.d.ts:1335

captureRejectionSymbol

▪ Static Readonly captureRejectionSymbol: typeof captureRejectionSymbol

Value: Symbol.for('nodejs.rejection')

See how to write a custom rejection handler.

Since

v13.4.0, v12.16.0

Inherited from

IncomingMessage.captureRejectionSymbol

Defined in

node_modules/@types/node/events.d.ts:415

captureRejections

▪ Static captureRejections: boolean

Value: boolean

Change the default captureRejections option on all new EventEmitter objects.

Since

v13.4.0, v12.16.0

Inherited from

IncomingMessage.captureRejections

Defined in

node_modules/@types/node/events.d.ts:422

defaultMaxListeners

▪ Static defaultMaxListeners: number

By default, a maximum of 10 listeners can be registered for any single event. This limit can be changed for individual EventEmitter instances using the emitter.setMaxListeners(n) method. To change the default for allEventEmitter instances, the events.defaultMaxListenersproperty can be used. If this value is not a positive number, a RangeErroris thrown.

Take caution when setting the events.defaultMaxListeners because the change affects allEventEmitter instances, including those created before the change is made. However, calling emitter.setMaxListeners(n) still has precedence over events.defaultMaxListeners.

This is not a hard limit. The EventEmitter instance will allow more listeners to be added but will output a trace warning to stderr indicating that a "possible EventEmitter memory leak" has been detected. For any singleEventEmitter, the emitter.getMaxListeners() and emitter.setMaxListeners()methods can be used to temporarily avoid this warning:

import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.setMaxListeners(emitter.getMaxListeners() + 1);
emitter.once('event', () => {
  // do stuff
  emitter.setMaxListeners(Math.max(emitter.getMaxListeners() - 1, 0));
});

The --trace-warnings command-line flag can be used to display the stack trace for such warnings.

The emitted warning can be inspected with process.on('warning') and will have the additional emitter, type, and count properties, referring to the event emitter instance, the event's name and the number of attached listeners, respectively. Its name property is set to 'MaxListenersExceededWarning'.

Since

v0.11.2

Inherited from

IncomingMessage.defaultMaxListeners

Defined in

node_modules/@types/node/events.d.ts:459

errorMonitor

▪ Static Readonly errorMonitor: typeof errorMonitor

This symbol shall be used to install a listener for only monitoring 'error'events. Listeners installed using this symbol are called before the regular'error' listeners are called.

Installing a listener using this symbol does not change the behavior once an'error' event is emitted. Therefore, the process will still crash if no regular 'error' listener is installed.

Since

v13.6.0, v12.17.0

Inherited from

IncomingMessage.errorMonitor

Defined in

node_modules/@types/node/events.d.ts:408

Methods

[asyncDispose]

▸ [asyncDispose](): Promise<void>

Calls readable.destroy() with an AbortError and returns a promise that fulfills when the stream is finished.

Returns

Promise<void>

Since

v20.4.0

Inherited from

IncomingMessage.[asyncDispose]

Defined in

node_modules/@types/node/stream.d.ts:651

[asyncIterator]

▸ [asyncIterator](): AsyncIterableIterator<any>

Returns

AsyncIterableIterator<any>

Inherited from

IncomingMessage.[asyncIterator]

Defined in

node_modules/@types/node/stream.d.ts:646

[captureRejectionSymbol]

▸ [captureRejectionSymbol]<K>(error, event, ...args): void

Type parameters

Name
`K`

Parameters

Name	Type
`error`	`Error`
`event`	`string` \| `symbol`
`...args`	`AnyRest`

Returns

void

Inherited from

IncomingMessage.[captureRejectionSymbol]

Defined in

node_modules/@types/node/events.d.ts:125

_construct

▸ _construct(callback): void

Parameters

Name	Type
`callback`	(`error?`: `null` \| `Error`) => `void`

Returns

void

Inherited from

IncomingMessage._construct

Defined in

node_modules/@types/node/stream.d.ts:126

_destroy

▸ _destroy(error, callback): void

Parameters

Name	Type
`error`	`null` \| `Error`
`callback`	(`error?`: `null` \| `Error`) => `void`

Returns

void

Inherited from

IncomingMessage._destroy

Defined in

node_modules/@types/node/stream.d.ts:566

_read

▸ _read(size): void

Parameters

Name	Type
`size`	`number`

Returns

void

Inherited from

IncomingMessage._read

Defined in

node_modules/@types/node/stream.d.ts:127

addListener

▸ addListener(event, listener): this

Event emitter The defined events on documents including:

close
data
end
error
pause
readable
resume

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:590

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:591

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:592

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:593

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:594

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:595

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:596

▸ addListener(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.addListener

Defined in

node_modules/@types/node/stream.d.ts:597

asIndexedPairs

▸ asIndexedPairs(options?): Readable

This method returns a new stream with chunks of the underlying stream paired with a counter in the form [index, chunk]. The first index value is 0 and it increases by 1 for each chunk produced.

Parameters

Name	Type
`options?`	`Pick`<`ArrayOptions`, `"signal"`>

Returns

Readable

a stream of indexed pairs.

Since

v17.5.0

Inherited from

IncomingMessage.asIndexedPairs

Defined in

node_modules/@types/node/stream.d.ts:541

compose

▸ compose<T>(stream, options?): T

Type parameters

Name	Type
`T`	extends `ReadableStream`

Parameters

Name	Type
`stream`	`ComposeFnParam` \| `T` \| `Iterable`<`T`> \| `AsyncIterable`<`T`>
`options?`	`Object`
`options.signal`	`AbortSignal`

Returns

T

Inherited from

IncomingMessage.compose

Defined in

node_modules/@types/node/stream.d.ts:35

destroy

▸ destroy(error?): this

Calls destroy() on the socket that received the IncomingMessage. If erroris provided, an 'error' event is emitted on the socket and error is passed as an argument to any listeners on the event.

Parameters

Name	Type
`error?`	`Error`

Returns

this

Since

v0.3.0

Inherited from

IncomingMessage.destroy

Defined in

node_modules/@types/node/http.d.ts:1355

drop

▸ drop(limit, options?): Readable

This method returns a new stream with the first limit chunks dropped from the start.

Parameters

Name	Type	Description
`limit`	`number`	the number of chunks to drop from the readable.
`options?`	`Pick`<`ArrayOptions`, `"signal"`>	-

Returns

Readable

a stream with limit chunks dropped from the start.

Since

v17.5.0

Inherited from

IncomingMessage.drop

Defined in

node_modules/@types/node/stream.d.ts:527

emit

▸ emit(event): boolean

Parameters

Name	Type
`event`	`"close"`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:598

▸ emit(event, chunk): boolean

Parameters

Name	Type
`event`	`"data"`
`chunk`	`any`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:599

▸ emit(event): boolean

Parameters

Name	Type
`event`	`"end"`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:600

▸ emit(event, err): boolean

Parameters

Name	Type
`event`	`"error"`
`err`	`Error`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:601

▸ emit(event): boolean

Parameters

Name	Type
`event`	`"pause"`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:602

▸ emit(event): boolean

Parameters

Name	Type
`event`	`"readable"`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:603

▸ emit(event): boolean

Parameters

Name	Type
`event`	`"resume"`

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:604

▸ emit(event, ...args): boolean

Parameters

Name	Type
`event`	`string` \| `symbol`
`...args`	`any`[]

Returns

boolean

Inherited from

IncomingMessage.emit

Defined in

node_modules/@types/node/stream.d.ts:605

eventNames

▸ eventNames(): (string | symbol)[]

Returns an array listing the events for which the emitter has registered listeners. The values in the array are strings or Symbols.

import { EventEmitter } from 'node:events';

const myEE = new EventEmitter();
myEE.on('foo', () => {});
myEE.on('bar', () => {});

const sym = Symbol('symbol');
myEE.on(sym, () => {});

console.log(myEE.eventNames());
// Prints: [ 'foo', 'bar', Symbol(symbol) ]

Returns

(string | symbol)[]

Since

v6.0.0

Inherited from

IncomingMessage.eventNames

Defined in

node_modules/@types/node/events.d.ts:883

every

▸ every(fn, options?): Promise<boolean>

This method is similar to Array.prototype.every and calls fn on each chunk in the stream to check if all awaited return values are truthy value for fn. Once an fn call on a chunk awaited return value is falsy, the stream is destroyed and the promise is fulfilled with false. If all of the fn calls on the chunks return a truthy value, the promise is fulfilled with true.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `boolean` \| `Promise`<`boolean`>	a function to call on each chunk of the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Promise<boolean>

a promise evaluating to true if fn returned a truthy value for every one of the chunks.

Since

v17.5.0

Inherited from

IncomingMessage.every

Defined in

node_modules/@types/node/stream.d.ts:506

filter

▸ filter(fn, options?): Readable

This method allows filtering the stream. For each chunk in the stream the fn function will be called and if it returns a truthy value, the chunk will be passed to the result stream. If the fn function returns a promise - that promise will be awaited.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `boolean` \| `Promise`<`boolean`>	a function to filter chunks from the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Readable

a stream filtered with the predicate fn.

Since

v17.4.0, v16.14.0

Inherited from

IncomingMessage.filter

Defined in

node_modules/@types/node/stream.d.ts:434

find

▸ find<T>(fn, options?): Promise<undefined | T>

This method is similar to Array.prototype.find and calls fn on each chunk in the stream to find a chunk with a truthy value for fn. Once an fn call's awaited return value is truthy, the stream is destroyed and the promise is fulfilled with value for which fn returned a truthy value. If all of the fn calls on the chunks return a falsy value, the promise is fulfilled with undefined.

Type parameters

Name
`T`

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => data is T	a function to call on each chunk of the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Promise<undefined | T>

a promise evaluating to the first chunk for which fn evaluated with a truthy value, or undefined if no element was found.

Since

v17.5.0

Inherited from

IncomingMessage.find

Defined in

node_modules/@types/node/stream.d.ts:489

▸ find(fn, options?): Promise<any>

Parameters

Name	Type
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `boolean` \| `Promise`<`boolean`>
`options?`	`ArrayOptions`

Returns

Promise<any>

Inherited from

IncomingMessage.find

Defined in

node_modules/@types/node/stream.d.ts:493

flatMap

▸ flatMap(fn, options?): Readable

This method returns a new stream by applying the given callback to each chunk of the stream and then flattening the result.

It is possible to return a stream or another iterable or async iterable from fn and the result streams will be merged (flattened) into the returned stream.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `any`	a function to map over every chunk in the stream. May be async. May be a stream or generator.
`options?`	`ArrayOptions`	-

Returns

Readable

a stream flat-mapped with the function fn.

Since

v17.5.0

Inherited from

IncomingMessage.flatMap

Defined in

node_modules/@types/node/stream.d.ts:520

forEach

▸ forEach(fn, options?): Promise<void>

This method allows iterating a stream. For each chunk in the stream the fn function will be called. If the fn function returns a promise - that promise will be awaited.

This method is different from for await...of loops in that it can optionally process chunks concurrently. In addition, a forEach iteration can only be stopped by having passed a signal option and aborting the related AbortController while for await...of can be stopped with break or return. In either case the stream will be destroyed.

This method is different from listening to the 'data' event in that it uses the readable event in the underlying machinary and can limit the number of concurrent fn calls.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `void` \| `Promise`<`void`>	a function to call on each chunk of the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Promise<void>

a promise for when the stream has finished.

Since

v17.5.0

Inherited from

IncomingMessage.forEach

Defined in

node_modules/@types/node/stream.d.ts:453

getMaxListeners

▸ getMaxListeners(): number

Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults to defaultMaxListeners.

Returns

number

Since

v1.0.0

Inherited from

IncomingMessage.getMaxListeners

Defined in

node_modules/@types/node/events.d.ts:735

isPaused

▸ isPaused(): boolean

The readable.isPaused() method returns the current operating state of theReadable. This is used primarily by the mechanism that underlies thereadable.pipe() method. In most typical cases, there will be no reason to use this method directly.

const readable = new stream.Readable();

readable.isPaused(); // === false
readable.pause();
readable.isPaused(); // === true
readable.resume();
readable.isPaused(); // === false

Returns

boolean

Since

v0.11.14

Inherited from

IncomingMessage.isPaused

Defined in

node_modules/@types/node/stream.d.ts:287

iterator

▸ iterator(options?): AsyncIterableIterator<any>

The iterator created by this method gives users the option to cancel the destruction of the stream if the for await...of loop is exited by return, break, or throw, or if the iterator should destroy the stream if the stream emitted an error during iteration.

Parameters

Name	Type	Description
`options?`	`Object`	-
`options.destroyOnReturn?`	`boolean`	When set to `false`, calling `return` on the async iterator, or exiting a `for await...of` iteration using a `break`, `return`, or `throw` will not destroy the stream. Default: `true`.

Returns

AsyncIterableIterator<any>

Since

v16.3.0

Inherited from

IncomingMessage.iterator

Defined in

node_modules/@types/node/stream.d.ts:417

listenerCount

▸ listenerCount<K>(eventName, listener?): number

Returns the number of listeners listening for the event named eventName. If listener is provided, it will return how many times the listener is found in the list of the listeners of the event.

Type parameters

Name
`K`

Parameters

Name	Type	Description
`eventName`	`string` \| `symbol`	The name of the event being listened for
`listener?`	`Function`	The event handler function

Returns

number

Since

v3.2.0

Inherited from

IncomingMessage.listenerCount

Defined in

node_modules/@types/node/events.d.ts:829

listeners

▸ listeners<K>(eventName): Function[]

Returns a copy of the array of listeners for the event named eventName.

server.on('connection', (stream) => {
  console.log('someone connected!');
});
console.log(util.inspect(server.listeners('connection')));
// Prints: [ [Function] ]

Type parameters

Name
`K`

Parameters

Name	Type
`eventName`	`string` \| `symbol`

Returns

Function[]

Since

v0.1.26

Inherited from

IncomingMessage.listeners

Defined in

node_modules/@types/node/events.d.ts:748

map

▸ map(fn, options?): Readable

This method allows mapping over the stream. The fn function will be called for every chunk in the stream. If the fn function returns a promise - that promise will be awaited before being passed to the result stream.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `any`	a function to map over every chunk in the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Readable

a stream mapped with the function fn.

Since

v17.4.0, v16.14.0

Inherited from

IncomingMessage.map

Defined in

node_modules/@types/node/stream.d.ts:425

off

▸ off<K>(eventName, listener): this

Alias for emitter.removeListener().

Type parameters

Name
`K`

Parameters

Name	Type
`eventName`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Since

v10.0.0

Inherited from

IncomingMessage.off

Defined in

node_modules/@types/node/events.d.ts:708

on

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:606

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:607

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:608

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:609

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:610

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:611

▸ on(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:612

▸ on(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/stream.d.ts:613

once

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:614

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:615

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:616

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:617

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:618

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:619

▸ once(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:620

▸ once(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/stream.d.ts:621

pause

▸ pause(): this

The readable.pause() method will cause a stream in flowing mode to stop emitting 'data' events, switching out of flowing mode. Any data that becomes available will remain in the internal buffer.

const readable = getReadableStreamSomehow();
readable.on('data', (chunk) => {
  console.log(`Received ${chunk.length} bytes of data.`);
  readable.pause();
  console.log('There will be no additional data for 1 second.');
  setTimeout(() => {
    console.log('Now data will start flowing again.');
    readable.resume();
  }, 1000);
});

The readable.pause() method has no effect if there is a 'readable'event listener.

Returns

this

Since

v0.9.4

Inherited from

IncomingMessage.pause

Defined in

node_modules/@types/node/stream.d.ts:251

pipe

▸ pipe<T>(destination, options?): T

Type parameters

Name	Type
`T`	extends `WritableStream`

Parameters

Name	Type
`destination`	`T`
`options?`	`Object`
`options.end?`	`boolean`

Returns

T

Inherited from

IncomingMessage.pipe

Defined in

node_modules/@types/node/stream.d.ts:29

prependListener

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:622

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:623

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:624

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:625

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:626

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:627

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:628

▸ prependListener(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.prependListener

Defined in

node_modules/@types/node/stream.d.ts:629

prependOnceListener

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:630

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:631

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:632

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:633

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:634

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:635

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:636

▸ prependOnceListener(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.prependOnceListener

Defined in

node_modules/@types/node/stream.d.ts:637

push

▸ push(chunk, encoding?): boolean

Parameters

Name	Type
`chunk`	`any`
`encoding?`	`BufferEncoding`

Returns

boolean

Inherited from

IncomingMessage.push

Defined in

node_modules/@types/node/stream.d.ts:407

rawListeners

▸ rawListeners<K>(eventName): Function[]

Returns a copy of the array of listeners for the event named eventName, including any wrappers (such as those created by .once()).

import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.once('log', () => console.log('log once'));

// Returns a new Array with a function `onceWrapper` which has a property
// `listener` which contains the original listener bound above
const listeners = emitter.rawListeners('log');
const logFnWrapper = listeners[0];

// Logs "log once" to the console and does not unbind the `once` event
logFnWrapper.listener();

// Logs "log once" to the console and removes the listener
logFnWrapper();

emitter.on('log', () => console.log('log persistently'));
// Will return a new Array with a single function bound by `.on()` above
const newListeners = emitter.rawListeners('log');

// Logs "log persistently" twice
newListeners[0]();
emitter.emit('log');

Type parameters

Name
`K`

Parameters

Name	Type
`eventName`	`string` \| `symbol`

Returns

Function[]

Since

v9.4.0

Inherited from

IncomingMessage.rawListeners

Defined in

node_modules/@types/node/events.d.ts:779

read

▸ read(size?): any

The readable.read() method reads data out of the internal buffer and returns it. If no data is available to be read, null is returned. By default, the data is returned as a Buffer object unless an encoding has been specified using the readable.setEncoding() method or the stream is operating in object mode.

The optional size argument specifies a specific number of bytes to read. Ifsize bytes are not available to be read, null will be returned _unless_the stream has ended, in which case all of the data remaining in the internal buffer will be returned.

If the size argument is not specified, all of the data contained in the internal buffer will be returned.

The size argument must be less than or equal to 1 GiB.

The readable.read() method should only be called on Readable streams operating in paused mode. In flowing mode, readable.read() is called automatically until the internal buffer is fully drained.

const readable = getReadableStreamSomehow();

// 'readable' may be triggered multiple times as data is buffered in
readable.on('readable', () => {
  let chunk;
  console.log('Stream is readable (new data received in buffer)');
  // Use a loop to make sure we read all currently available data
  while (null !== (chunk = readable.read())) {
    console.log(`Read ${chunk.length} bytes of data...`);
  }
});

// 'end' will be triggered once when there is no more data available
readable.on('end', () => {
  console.log('Reached end of stream.');
});

Each call to readable.read() returns a chunk of data, or null. The chunks are not concatenated. A while loop is necessary to consume all data currently in the buffer. When reading a large file .read() may return null, having consumed all buffered content so far, but there is still more data to come not yet buffered. In this case a new 'readable' event will be emitted when there is more data in the buffer. Finally the 'end' event will be emitted when there is no more data to come.

Therefore to read a file's whole contents from a readable, it is necessary to collect chunks across multiple 'readable' events:

const chunks = [];

readable.on('readable', () => {
  let chunk;
  while (null !== (chunk = readable.read())) {
    chunks.push(chunk);
  }
});

readable.on('end', () => {
  const content = chunks.join('');
});

A Readable stream in object mode will always return a single item from a call to readable.read(size), regardless of the value of thesize argument.

If the readable.read() method returns a chunk of data, a 'data' event will also be emitted.

Calling read after the 'end' event has been emitted will return null. No runtime error will be raised.

Parameters

Name	Type	Description
`size?`	`number`	Optional argument to specify how much data to read.

Returns

any

Since

v0.9.4

Inherited from

IncomingMessage.read

Defined in

node_modules/@types/node/stream.d.ts:204

reduce

▸ reduce<T>(fn, initial?, options?): Promise<T>

This method calls fn on each chunk of the stream in order, passing it the result from the calculation on the previous element. It returns a promise for the final value of the reduction.

If no initial value is supplied the first chunk of the stream is used as the initial value. If the stream is empty, the promise is rejected with a TypeError with the ERR_INVALID_ARGS code property.

The reducer function iterates the stream element-by-element which means that there is no concurrency parameter or parallelism. To perform a reduce concurrently, you can extract the async function to readable.map method.

Type parameters

Name	Type
`T`	`any`

Parameters

Name	Type	Description
`fn`	(`previous`: `any`, `data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `T`	a reducer function to call over every chunk in the stream. Async or not.
`initial?`	`undefined`	the initial value to use in the reduction.
`options?`	`Pick`<`ArrayOptions`, `"signal"`>	-

Returns

Promise<T>

a promise for the final value of the reduction.

Since

v17.5.0

Inherited from

IncomingMessage.reduce

Defined in

node_modules/@types/node/stream.d.ts:556

▸ reduce<T>(fn, initial, options?): Promise<T>

Type parameters

Name	Type
`T`	`any`

Parameters

Name	Type
`fn`	(`previous`: `T`, `data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `T`
`initial`	`T`
`options?`	`Pick`<`ArrayOptions`, `"signal"`>

Returns

Promise<T>

Inherited from

IncomingMessage.reduce

Defined in

node_modules/@types/node/stream.d.ts:561

removeAllListeners

▸ removeAllListeners(eventName?): this

Removes all listeners, or those of the specified eventName.

It is bad practice to remove listeners added elsewhere in the code, particularly when the EventEmitter instance was created by some other component or module (e.g. sockets or file streams).

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters

Name	Type
`eventName?`	`string` \| `symbol`

Returns

this

Since

v0.1.26

Inherited from

IncomingMessage.removeAllListeners

Defined in

node_modules/@types/node/events.d.ts:719

removeListener

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"close"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:638

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"data"`
`listener`	(`chunk`: `any`) => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:639

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"end"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:640

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"error"`
`listener`	(`err`: `Error`) => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:641

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"pause"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:642

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"readable"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:643

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`"resume"`
`listener`	() => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:644

▸ removeListener(event, listener): this

Parameters

Name	Type
`event`	`string` \| `symbol`
`listener`	(...`args`: `any`[]) => `void`

Returns

this

Inherited from

IncomingMessage.removeListener

Defined in

node_modules/@types/node/stream.d.ts:645

resume

▸ resume(): this

The readable.resume() method causes an explicitly paused Readable stream to resume emitting 'data' events, switching the stream into flowing mode.

The readable.resume() method can be used to fully consume the data from a stream without actually processing any of that data:

getReadableStreamSomehow()
  .resume()
  .on('end', () => {
    console.log('Reached the end, but did not read anything.');
  });

The readable.resume() method has no effect if there is a 'readable'event listener.

Returns

this

Since

v0.9.4

Inherited from

IncomingMessage.resume

Defined in

node_modules/@types/node/stream.d.ts:270

setEncoding

▸ setEncoding(encoding): this

The readable.setEncoding() method sets the character encoding for data read from the Readable stream.

By default, no encoding is assigned and stream data will be returned asBuffer objects. Setting an encoding causes the stream data to be returned as strings of the specified encoding rather than as Bufferobjects. For instance, calling readable.setEncoding('utf8') will cause the output data to be interpreted as UTF-8 data, and passed as strings. Callingreadable.setEncoding('hex') will cause the data to be encoded in hexadecimal string format.

The Readable stream will properly handle multi-byte characters delivered through the stream that would otherwise become improperly decoded if simply pulled from the stream as Buffer objects.

const readable = getReadableStreamSomehow();
readable.setEncoding('utf8');
readable.on('data', (chunk) => {
  assert.equal(typeof chunk, 'string');
  console.log('Got %d characters of string data:', chunk.length);
});

Parameters

Name	Type	Description
`encoding`	`BufferEncoding`	The encoding to use.

Returns

this

Since

v0.9.4

Inherited from

IncomingMessage.setEncoding

Defined in

node_modules/@types/node/stream.d.ts:229

setMaxListeners

▸ setMaxListeners(n): this

By default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default that helps finding memory leaks. The emitter.setMaxListeners() method allows the limit to be modified for this specific EventEmitter instance. The value can be set toInfinity (or 0) to indicate an unlimited number of listeners.

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters

Name	Type
`n`	`number`

Returns

this

Since

v0.3.5

Inherited from

IncomingMessage.setMaxListeners

Defined in

node_modules/@types/node/events.d.ts:729

setTimeout

▸ setTimeout(msecs, callback?): this

Calls message.socket.setTimeout(msecs, callback).

Parameters

Name	Type
`msecs`	`number`
`callback?`	() => `void`

Returns

this

Since

v0.5.9

Inherited from

IncomingMessage.setTimeout

Defined in

node_modules/@types/node/http.d.ts:1288

some

▸ some(fn, options?): Promise<boolean>

This method is similar to Array.prototype.some and calls fn on each chunk in the stream until the awaited return value is true (or any truthy value). Once an fn call on a chunk awaited return value is truthy, the stream is destroyed and the promise is fulfilled with true. If none of the fn calls on the chunks return a truthy value, the promise is fulfilled with false.

Parameters

Name	Type	Description
`fn`	(`data`: `any`, `options?`: `Pick`<`ArrayOptions`, `"signal"`>) => `boolean` \| `Promise`<`boolean`>	a function to call on each chunk of the stream. Async or not.
`options?`	`ArrayOptions`	-

Returns

Promise<boolean>

a promise evaluating to true if fn returned a truthy value for at least one of the chunks.

Since

v17.5.0

Inherited from

IncomingMessage.some

Defined in

node_modules/@types/node/stream.d.ts:475

take

▸ take(limit, options?): Readable

This method returns a new stream with the first limit chunks.

Parameters

Name	Type	Description
`limit`	`number`	the number of chunks to take from the readable.
`options?`	`Pick`<`ArrayOptions`, `"signal"`>	-

Returns

Readable

a stream with limit chunks taken.

Since

v17.5.0

Inherited from

IncomingMessage.take

Defined in

node_modules/@types/node/stream.d.ts:534

toArray

▸ toArray(options?): Promise<any[]>

This method allows easily obtaining the contents of a stream.

As this method reads the entire stream into memory, it negates the benefits of streams. It's intended for interoperability and convenience, not as the primary way to consume streams.

Parameters

Name	Type
`options?`	`Pick`<`ArrayOptions`, `"signal"`>

Returns

Promise<any[]>

a promise containing an array with the contents of the stream.

Since

v17.5.0

Inherited from

IncomingMessage.toArray

Defined in

node_modules/@types/node/stream.d.ts:465

unpipe

▸ unpipe(destination?): this

The readable.unpipe() method detaches a Writable stream previously attached using the pipe method.

If the destination is not specified, then all pipes are detached.

If the destination is specified, but no pipe is set up for it, then the method does nothing.

const fs = require('node:fs');
const readable = getReadableStreamSomehow();
const writable = fs.createWriteStream('file.txt');
// All the data from readable goes into 'file.txt',
// but only for the first second.
readable.pipe(writable);
setTimeout(() => {
  console.log('Stop writing to file.txt.');
  readable.unpipe(writable);
  console.log('Manually close the file stream.');
  writable.end();
}, 1000);

Parameters

Name	Type	Description
`destination?`	`WritableStream`	Optional specific stream to unpipe

Returns

this

Since

v0.9.4

Inherited from

IncomingMessage.unpipe

Defined in

node_modules/@types/node/stream.d.ts:314

unshift

▸ unshift(chunk, encoding?): void

Passing chunk as null signals the end of the stream (EOF) and behaves the same as readable.push(null), after which no more data can be written. The EOF signal is put at the end of the buffer and any buffered data will still be flushed.

The readable.unshift() method pushes a chunk of data back into the internal buffer. This is useful in certain situations where a stream is being consumed by code that needs to "un-consume" some amount of data that it has optimistically pulled out of the source, so that the data can be passed on to some other party.

The stream.unshift(chunk) method cannot be called after the 'end' event has been emitted or a runtime error will be thrown.

Developers using stream.unshift() often should consider switching to use of a Transform stream instead. See the API for stream implementers section for more information.

// Pull off a header delimited by \n\n.
// Use unshift() if we get too much.
// Call the callback with (error, header, stream).
const { StringDecoder } = require('node:string_decoder');
function parseHeader(stream, callback) {
  stream.on('error', callback);
  stream.on('readable', onReadable);
  const decoder = new StringDecoder('utf8');
  let header = '';
  function onReadable() {
    let chunk;
    while (null !== (chunk = stream.read())) {
      const str = decoder.write(chunk);
      if (str.includes('\n\n')) {
        // Found the header boundary.
        const split = str.split(/\n\n/);
        header += split.shift();
        const remaining = split.join('\n\n');
        const buf = Buffer.from(remaining, 'utf8');
        stream.removeListener('error', callback);
        // Remove the 'readable' listener before unshifting.
        stream.removeListener('readable', onReadable);
        if (buf.length)
          stream.unshift(buf);
        // Now the body of the message can be read from the stream.
        callback(null, header, stream);
        return;
      }
      // Still reading the header.
      header += str;
    }
  }
}

Unlike push, stream.unshift(chunk) will not end the reading process by resetting the internal reading state of the stream. This can cause unexpected results if readable.unshift() is called during a read (i.e. from within a _read implementation on a custom stream). Following the call to readable.unshift() with an immediate push will reset the reading state appropriately, however it is best to simply avoid calling readable.unshift() while in the process of performing a read.

Parameters

Name	Type	Description
`chunk`	`any`	Chunk of data to unshift onto the read queue. For streams not operating in object mode, `chunk` must be a string, `Buffer`, `Uint8Array`, or `null`. For object mode streams, `chunk` may be any JavaScript value.
`encoding?`	`BufferEncoding`	Encoding of string chunks. Must be a valid `Buffer` encoding, such as `'utf8'` or `'ascii'`.

Returns

void

Since

v0.9.11

Inherited from

IncomingMessage.unshift

Defined in

node_modules/@types/node/stream.d.ts:380

wrap

▸ wrap(stream): this

Prior to Node.js 0.10, streams did not implement the entire node:streammodule API as it is currently defined. (See Compatibility for more information.)

When using an older Node.js library that emits 'data' events and has a pause method that is advisory only, thereadable.wrap() method can be used to create a Readable stream that uses the old stream as its data source.

It will rarely be necessary to use readable.wrap() but the method has been provided as a convenience for interacting with older Node.js applications and libraries.

const { OldReader } = require('./old-api-module.js');
const { Readable } = require('node:stream');
const oreader = new OldReader();
const myReader = new Readable().wrap(oreader);

myReader.on('readable', () => {
  myReader.read(); // etc.
});

Parameters

Name	Type	Description
`stream`	`ReadableStream`	An "old style" readable stream

Returns

this

Since

v0.9.4

Inherited from

IncomingMessage.wrap

Defined in

node_modules/@types/node/stream.d.ts:406

addAbortListener

▸ addAbortListener(signal, resource): Disposable

Listens once to the abort event on the provided signal.

Listening to the abort event on abort signals is unsafe and may lead to resource leaks since another third party with the signal can call e.stopImmediatePropagation(). Unfortunately Node.js cannot change this since it would violate the web standard. Additionally, the original API makes it easy to forget to remove listeners.

This API allows safely using AbortSignals in Node.js APIs by solving these two issues by listening to the event such that stopImmediatePropagation does not prevent the listener from running.

Returns a disposable so that it may be unsubscribed from more easily.

import { addAbortListener } from 'node:events';

function example(signal) {
  let disposable;
  try {
    signal.addEventListener('abort', (e) => e.stopImmediatePropagation());
    disposable = addAbortListener(signal, (e) => {
      // Do something when signal is aborted.
    });
  } finally {
    disposable?.[Symbol.dispose]();
  }
}

Parameters

Name	Type
`signal`	`AbortSignal`
`resource`	(`event`: `Event`) => `void`

Returns

Disposable

Disposable that removes the abort listener.

Since

v20.5.0

Inherited from

IncomingMessage.addAbortListener

Defined in

node_modules/@types/node/events.d.ts:400

from

▸ from(iterable, options?): Readable

A utility method for creating Readable Streams out of iterators.

Parameters

Name	Type
`iterable`	`Iterable`<`any`> \| `AsyncIterable`<`any`>
`options?`	`ReadableOptions`

Returns

Readable

Inherited from

IncomingMessage.from

Defined in

node_modules/@types/node/stream.d.ts:53

fromWeb

▸ fromWeb(readableStream, options?): Readable

A utility method for creating a Readable from a web ReadableStream.

Parameters

Name	Type
`readableStream`	`ReadableStream`<`any`>
`options?`	`Pick`<`ReadableOptions`, `"signal"` \| `"encoding"` \| `"highWaterMark"` \| `"objectMode"`>

Returns

Readable

Since

v17.0.0

Inherited from

IncomingMessage.fromWeb

Defined in

node_modules/@types/node/stream.d.ts:967

getEventListeners

▸ getEventListeners(emitter, name): Function[]

Returns a copy of the array of listeners for the event named eventName.

For EventEmitters this behaves exactly the same as calling .listeners on the emitter.

For EventTargets this is the only way to get the event listeners for the event target. This is useful for debugging and diagnostic purposes.

import { getEventListeners, EventEmitter } from 'node:events';

{
  const ee = new EventEmitter();
  const listener = () => console.log('Events are fun');
  ee.on('foo', listener);
  console.log(getEventListeners(ee, 'foo')); // [ [Function: listener] ]
}
{
  const et = new EventTarget();
  const listener = () => console.log('Events are fun');
  et.addEventListener('foo', listener);
  console.log(getEventListeners(et, 'foo')); // [ [Function: listener] ]
}

Parameters

Name	Type
`emitter`	`EventEmitter`<`DefaultEventMap`> \| `_DOMEventTarget`
`name`	`string` \| `symbol`

Returns

Function[]

Since

v15.2.0, v14.17.0

Inherited from

IncomingMessage.getEventListeners

Defined in

node_modules/@types/node/events.d.ts:321

getMaxListeners

▸ getMaxListeners(emitter): number

Returns the currently set max amount of listeners.

For EventEmitters this behaves exactly the same as calling .getMaxListeners on the emitter.

For EventTargets this is the only way to get the max event listeners for the event target. If the number of event handlers on a single EventTarget exceeds the max set, the EventTarget will print a warning.

import { getMaxListeners, setMaxListeners, EventEmitter } from 'node:events';

{
  const ee = new EventEmitter();
  console.log(getMaxListeners(ee)); // 10
  setMaxListeners(11, ee);
  console.log(getMaxListeners(ee)); // 11
}
{
  const et = new EventTarget();
  console.log(getMaxListeners(et)); // 10
  setMaxListeners(11, et);
  console.log(getMaxListeners(et)); // 11
}

Parameters

Name	Type
`emitter`	`EventEmitter`<`DefaultEventMap`> \| `_DOMEventTarget`

Returns

number

Since

v19.9.0

Inherited from

IncomingMessage.getMaxListeners

Defined in

node_modules/@types/node/events.d.ts:350

isDisturbed

▸ isDisturbed(stream): boolean

Returns whether the stream has been read from or cancelled.

Parameters

Name	Type
`stream`	`Readable` \| `ReadableStream`

Returns

boolean

Since

v16.8.0

Inherited from

IncomingMessage.isDisturbed

Defined in

node_modules/@types/node/stream.d.ts:58

listenerCount

▸ listenerCount(emitter, eventName): number

A class method that returns the number of listeners for the given eventNameregistered on the given emitter.

import { EventEmitter, listenerCount } from 'node:events';

const myEmitter = new EventEmitter();
myEmitter.on('event', () => {});
myEmitter.on('event', () => {});
console.log(listenerCount(myEmitter, 'event'));
// Prints: 2

Parameters

Name	Type	Description
`emitter`	`EventEmitter`<`DefaultEventMap`>	The emitter to query
`eventName`	`string` \| `symbol`	The event name

Returns

number

Since

v0.9.12

Deprecated

Since v3.2.0 - Use listenerCount instead.

Inherited from

IncomingMessage.listenerCount

Defined in

node_modules/@types/node/events.d.ts:293

on

▸ on(emitter, eventName, options?): AsyncIterableIterator<any>

import { on, EventEmitter } from 'node:events';
import process from 'node:process';

const ee = new EventEmitter();

// Emit later on
process.nextTick(() => {
  ee.emit('foo', 'bar');
  ee.emit('foo', 42);
});

for await (const event of on(ee, 'foo')) {
  // The execution of this inner block is synchronous and it
  // processes one event at a time (even with await). Do not use
  // if concurrent execution is required.
  console.log(event); // prints ['bar'] [42]
}
// Unreachable here

Returns an AsyncIterator that iterates eventName events. It will throw if the EventEmitter emits 'error'. It removes all listeners when exiting the loop. The value returned by each iteration is an array composed of the emitted event arguments.

An AbortSignal can be used to cancel waiting on events:

import { on, EventEmitter } from 'node:events';
import process from 'node:process';

const ac = new AbortController();

(async () => {
  const ee = new EventEmitter();

  // Emit later on
  process.nextTick(() => {
    ee.emit('foo', 'bar');
    ee.emit('foo', 42);
  });

  for await (const event of on(ee, 'foo', { signal: ac.signal })) {
    // The execution of this inner block is synchronous and it
    // processes one event at a time (even with await). Do not use
    // if concurrent execution is required.
    console.log(event); // prints ['bar'] [42]
  }
  // Unreachable here
})();

process.nextTick(() => ac.abort());

Parameters

Name	Type	Description
`emitter`	`EventEmitter`<`DefaultEventMap`>	-
`eventName`	`string`	The name of the event being listened for
`options?`	`StaticEventEmitterOptions`	-

Returns

AsyncIterableIterator<any>

that iterates eventName events emitted by the emitter

Since

v13.6.0, v12.16.0

Inherited from

IncomingMessage.on

Defined in

node_modules/@types/node/events.d.ts:271

▸ on<Emitter, Events>(eventEmitter, eventName): AsyncIterableIterator<Emitter extends Client<boolean> ? ClientEvents[Events] : any>

Type parameters

Name	Type
`Emitter`	extends `__module`
`Events`	extends keyof `ClientEvents`

Parameters

Name	Type
`eventEmitter`	`Emitter`
`eventName`	`Emitter` extends `Client`<`boolean`> ? `Events` : `string`

Returns

AsyncIterableIterator<Emitter extends Client<boolean> ? ClientEvents[Events] : any>

Inherited from

IncomingMessage.on

Defined in

node_modules/discord.js/typings/index.d.ts:243

once

▸ once(emitter, eventName, options?): Promise<any[]>

Creates a Promise that is fulfilled when the EventEmitter emits the given event or that is rejected if the EventEmitter emits 'error' while waiting. The Promise will resolve with an array of all the arguments emitted to the given event.

This method is intentionally generic and works with the web platform EventTarget interface, which has no special'error' event semantics and does not listen to the 'error' event.

import { once, EventEmitter } from 'node:events';
import process from 'node:process';

const ee = new EventEmitter();

process.nextTick(() => {
  ee.emit('myevent', 42);
});

const [value] = await once(ee, 'myevent');
console.log(value);

const err = new Error('kaboom');
process.nextTick(() => {
  ee.emit('error', err);
});

try {
  await once(ee, 'myevent');
} catch (err) {
  console.error('error happened', err);
}

The special handling of the 'error' event is only used when events.once()is used to wait for another event. If events.once() is used to wait for the 'error' event itself, then it is treated as any other kind of event without special handling:

import { EventEmitter, once } from 'node:events';

const ee = new EventEmitter();

once(ee, 'error')
  .then(([err]) => console.log('ok', err.message))
  .catch((err) => console.error('error', err.message));

ee.emit('error', new Error('boom'));

// Prints: ok boom

An AbortSignal can be used to cancel waiting for the event:

import { EventEmitter, once } from 'node:events';

const ee = new EventEmitter();
const ac = new AbortController();

async function foo(emitter, event, signal) {
  try {
    await once(emitter, event, { signal });
    console.log('event emitted!');
  } catch (error) {
    if (error.name === 'AbortError') {
      console.error('Waiting for the event was canceled!');
    } else {
      console.error('There was an error', error.message);
    }
  }
}

foo(ee, 'foo', ac.signal);
ac.abort(); // Abort waiting for the event
ee.emit('foo'); // Prints: Waiting for the event was canceled!

Parameters

Name	Type
`emitter`	`EventEmitter`<`DefaultEventMap`>
`eventName`	`string` \| `symbol`
`options?`	`StaticEventEmitterOptions`

Returns

Promise<any[]>

Since

v11.13.0, v10.16.0

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/events.d.ts:206

▸ once(emitter, eventName, options?): Promise<any[]>

Parameters

Name	Type
`emitter`	`_DOMEventTarget`
`eventName`	`string`
`options?`	`StaticEventEmitterOptions`

Returns

Promise<any[]>

Inherited from

IncomingMessage.once

Defined in

node_modules/@types/node/events.d.ts:211

▸ once<Emitter, Event>(eventEmitter, eventName): Promise<Emitter extends Client<boolean> ? ClientEvents[Event] : any[]>

Type parameters

Name	Type
`Emitter`	extends `__module`
`Event`	extends keyof `ClientEvents`

Parameters

Name	Type
`eventEmitter`	`Emitter`
`eventName`	`Emitter` extends `Client`<`boolean`> ? `Event` : `string`

Returns

Promise<Emitter extends Client<boolean> ? ClientEvents[Event] : any[]>

Inherited from

IncomingMessage.once

Defined in

node_modules/discord.js/typings/index.d.ts:239

setMaxListeners

▸ setMaxListeners(n?, ...eventTargets): void

import { setMaxListeners, EventEmitter } from 'node:events';

const target = new EventTarget();
const emitter = new EventEmitter();

setMaxListeners(5, target, emitter);

Parameters

Name	Type	Description
`n?`	`number`	A non-negative number. The maximum number of listeners per `EventTarget` event.
`...eventTargets`	(`EventEmitter`<`DefaultEventMap`> \| `_DOMEventTarget`)[]	-

Returns

void

Since

v15.4.0

Inherited from

IncomingMessage.setMaxListeners

Defined in

node_modules/@types/node/events.d.ts:365

toWeb

▸ toWeb(streamReadable): ReadableStream<any>

A utility method for creating a web ReadableStream from a Readable.

Parameters

Name	Type
`streamReadable`	`Readable`

Returns

ReadableStream<any>

Since

v17.0.0

Inherited from

IncomingMessage.toWeb

Defined in

node_modules/@types/node/stream.d.ts:976

Hierarchy​

Constructors​

constructor​

Parameters​

Returns​

Inherited from​

Defined in​

Properties​

aborted​

Inherited from​

Defined in​

auth​

Defined in​

body​

Defined in​

closed​

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complete​

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Defined in​

connection​

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Defined in​

destroyed​

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Defined in​

errored​

Inherited from​

Defined in​

headers​

Inherited from​

Defined in​

headersDistinct​

Inherited from​

Defined in​

httpVersion​

Inherited from​

Defined in​

httpVersionMajor​

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Defined in​

httpVersionMinor​

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Defined in​

method​

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Defined in​

params​

Defined in​

query​

Defined in​

rawHeaders​

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Defined in​

rawTrailers​

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Defined in​

readable​

Inherited from​

Defined in​

readableAborted​

Inherited from​

Defined in​

readableDidRead​

Inherited from​

Defined in​

readableEncoding​

Inherited from​

Defined in​

readableEnded​

Inherited from​

Defined in​

readableFlowing​

Inherited from​

Defined in​

readableHighWaterMark​

Inherited from​

Defined in​

readableLength​

Hierarchy

Constructors

constructor

Parameters

Returns

Inherited from

Defined in

Properties

aborted

Inherited from

Defined in

auth

Defined in

body

Defined in

closed

Inherited from

Defined in

complete

Inherited from

Defined in

connection

Inherited from

Defined in

destroyed

Inherited from

Defined in

errored

Inherited from

Defined in

headers

Inherited from

Defined in

headersDistinct

Inherited from

Defined in

httpVersion

Inherited from

Defined in

httpVersionMajor

Inherited from

Defined in

httpVersionMinor

Inherited from

Defined in

method

Inherited from

Defined in

params

Defined in

query

Defined in

rawHeaders

Inherited from

Defined in

rawTrailers

Inherited from

Defined in

readable

Inherited from

Defined in

readableAborted

Inherited from

Defined in

readableDidRead

Inherited from

Defined in

readableEncoding

Inherited from

Defined in

readableEnded

Inherited from

Defined in

readableFlowing

Inherited from

Defined in

readableHighWaterMark

Inherited from

Defined in

readableLength