74 lines
2.1 KiB
Markdown
74 lines
2.1 KiB
Markdown
## Class: IncomingMessage
|
|
|
|
> Handle responses to HTTP/HTTPS requests.
|
|
|
|
Process: [Main](../glossary.md#main-process)
|
|
|
|
`IncomingMessage` implements the [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams)
|
|
interface and is therefore an [EventEmitter](https://nodejs.org/api/events.html#events_class_eventemitter).
|
|
|
|
### Instance Events
|
|
|
|
#### Event: 'data'
|
|
|
|
Returns:
|
|
|
|
* `chunk` Buffer - A chunk of response body's data.
|
|
|
|
The `data` event is the usual method of transferring response data into
|
|
applicative code.
|
|
|
|
#### Event: 'end'
|
|
|
|
Indicates that response body has ended.
|
|
|
|
#### Event: 'aborted'
|
|
|
|
Emitted when a request has been canceled during an ongoing HTTP transaction.
|
|
|
|
#### Event: 'error'
|
|
|
|
Returns:
|
|
|
|
`error` Error - Typically holds an error string identifying failure root cause.
|
|
|
|
Emitted when an error was encountered while streaming response data events. For
|
|
instance, if the server closes the underlying while the response is still
|
|
streaming, an `error` event will be emitted on the response object and a `close`
|
|
event will subsequently follow on the request object.
|
|
|
|
### Instance Properties
|
|
|
|
An `IncomingMessage` instance has the following readable properties:
|
|
|
|
#### `response.statusCode`
|
|
|
|
An Integer indicating the HTTP response status code.
|
|
|
|
#### `response.statusMessage`
|
|
|
|
A String representing the HTTP status message.
|
|
|
|
#### `response.headers`
|
|
|
|
An Object representing the response HTTP headers. The `headers` object is
|
|
formatted as follows:
|
|
|
|
* All header names are lowercased.
|
|
* Each header name produces an array-valued property on the headers object.
|
|
* Each header value is pushed into the array associated with its header name.
|
|
|
|
#### `response.httpVersion`
|
|
|
|
A String indicating the HTTP protocol version number. Typical values are '1.0'
|
|
or '1.1'. Additionally `httpVersionMajor` and `httpVersionMinor` are two
|
|
Integer-valued readable properties that return respectively the HTTP major and
|
|
minor version numbers.
|
|
|
|
#### `response.httpVersionMajor`
|
|
|
|
An Integer indicating the HTTP protocol major version number.
|
|
|
|
#### `response.httpVersionMinor`
|
|
|
|
An Integer indicating the HTTP protocol minor version number.
|