///
import { IncomingHttpHeaders } from "http";
import { Readable, Writable } from "stream";
declare namespace busboy {
interface Limits {
/**
* Max field name size (in bytes).
*
* @default 100
*/
fieldNameSize?: number | undefined;
/**
* Max field value size (in bytes).
*
* @default 1048576 (1MB)
*/
fieldSize?: number | undefined;
/**
* Max number of non-file fields.
*
* @default Infinity
*/
fields?: number | undefined;
/**
* For multipart forms, the max file size (in bytes).
*
* @default Infinity
*/
fileSize?: number | undefined;
/**
* For multipart forms, the max number of file fields.
*
* @default Infinity
*/
files?: number | undefined;
/**
* For multipart forms, the max number of parts (fields + files).
*
* @default Infinity
*/
parts?: number | undefined;
/**
* For multipart forms, the max number of header key-value pairs to parse.
*
* @default 2000 (same as node's http module)
*/
headerPairs?: number | undefined;
}
interface BusboyConfig {
/**
* These are the HTTP headers of the incoming request, which are used by individual parsers.
*/
headers?: IncomingHttpHeaders | undefined;
/**
* 'highWaterMark' to use for the parser stream
*
* @default stream.Writable
*/
highWaterMark?: number | undefined;
/**
* 'highWaterMark' to use for individual file streams
*
* @default stream.Readable
*/
fileHwm?: number | undefined;
/**
* Default character set to use when one isn't defined.
*
* @default 'utf8'
*/
defCharset?: string | undefined;
/**
* For multipart forms, the default character set to use for values of part header parameters (e.g. filename)
* that are not extended parameters (that contain an explicit charset
*
* @default 'latin1'
*/
defParamCharset?: string | undefined;
/**
* If paths in filenames from file parts in a 'multipart/form-data' request shall be preserved.
*
* @default false
*/
preservePath?: boolean | undefined;
/**
* Various limits on incoming data.
*/
limits?: Limits | undefined;
}
interface Busboy extends Writable {
addListener(event: Event, listener: BusboyEvents[Event]): this;
addListener(event: string | symbol, listener: (...args: any[]) => void): this;
on(event: Event, listener: BusboyEvents[Event]): this;
on(event: string | symbol, listener: (...args: any[]) => void): this;
once(event: Event, listener: BusboyEvents[Event]): this;
once(event: string | symbol, listener: (...args: any[]) => void): this;
removeListener(event: Event, listener: BusboyEvents[Event]): this;
removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
off(event: Event, listener: BusboyEvents[Event]): this;
off(event: string | symbol, listener: (...args: any[]) => void): this;
prependListener(event: Event, listener: BusboyEvents[Event]): this;
prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
prependOnceListener(event: Event, listener: BusboyEvents[Event]): this;
prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
}
interface Info {
encoding: string;
mimeType: string;
}
interface FileInfo extends Info {
filename: string;
}
interface FieldInfo extends Info {
nameTruncated: boolean;
valueTruncated: boolean;
}
interface BusboyEvents {
/**
* Emitted for each new file form field found.
*
* * Note: if you listen for this event, you should always handle the `stream` no matter if you care about the
* file contents or not (e.g. you can simply just do `stream.resume();` if you want to discard the contents),
* otherwise the 'finish' event will never fire on the Busboy instance. However, if you don't care about **any**
* incoming files, you can simply not listen for the 'file' event at all and any/all files will be automatically
* and safely discarded (these discarded files do still count towards `files` and `parts` limits).
* * If a configured file size limit was reached, `stream` will both have a boolean property `truncated`
* (best checked at the end of the stream) and emit a 'limit' event to notify you when this happens.
*
* @param listener.transferEncoding Contains the 'Content-Transfer-Encoding' value for the file stream.
* @param listener.mimeType Contains the 'Content-Type' value for the file stream.
*/
file: (name: string, stream: Readable & { truncated?: boolean }, info: FileInfo) => void;
/**
* Emitted for each new non-file field found.
*/
field: (name: string, value: string, info: FieldInfo) => void;
/**
* Emitted when specified `parts` limit has been reached. No more 'file' or 'field' events will be emitted.
*/
partsLimit: () => void;
/**
* Emitted when specified `files` limit has been reached. No more 'file' events will be emitted.
*/
filesLimit: () => void;
/**
* Emitted when specified `fields` limit has been reached. No more 'field' events will be emitted.
*/
fieldsLimit: () => void;
error: (error: unknown) => void;
/**
* @deprecated
* @since 1.0
*/
finish: () => void;
/**
* Use 'close' event instead of 'finish' event when you need to execute
*
* @since 1.0
*/
close: () => void;
}
}
declare function busboy(config: busboy.BusboyConfig): busboy.Busboy;
export = busboy;