|
|
|
# socket.io-parser |
|
|
|
[](https://github.com/socketio/socket.io-parser/actions) |
|
[](http://badge.fury.io/js/socket.io-parser) |
|
|
|
A socket.io encoder and decoder written in JavaScript complying with version `5` |
|
of [socket.io-protocol](https://github.com/socketio/socket.io-protocol). |
|
Used by [socket.io](https://github.com/automattic/socket.io) and |
|
[socket.io-client](https://github.com/automattic/socket.io-client). |
|
|
|
Compatibility table: |
|
|
|
| Parser version | Socket.IO server version | Protocol revision | |
|
|----------------| ------------------------ | ----------------- | |
|
| 3.x | 1.x / 2.x | 4 | |
|
| 4.x | 3.x | 5 | |
|
|
|
|
|
## Parser API |
|
|
|
socket.io-parser is the reference implementation of socket.io-protocol. Read |
|
the full API here: |
|
[socket.io-protocol](https://github.com/learnboost/socket.io-protocol). |
|
|
|
## Example Usage |
|
|
|
### Encoding and decoding a packet |
|
|
|
```js |
|
var parser = require('socket.io-parser'); |
|
var encoder = new parser.Encoder(); |
|
var packet = { |
|
type: parser.EVENT, |
|
data: 'test-packet', |
|
id: 13 |
|
}; |
|
encoder.encode(packet, function(encodedPackets) { |
|
var decoder = new parser.Decoder(); |
|
decoder.on('decoded', function(decodedPacket) { |
|
// decodedPacket.type == parser.EVENT |
|
// decodedPacket.data == 'test-packet' |
|
// decodedPacket.id == 13 |
|
}); |
|
|
|
for (var i = 0; i < encodedPackets.length; i++) { |
|
decoder.add(encodedPackets[i]); |
|
} |
|
}); |
|
``` |
|
|
|
### Encoding and decoding a packet with binary data |
|
|
|
```js |
|
var parser = require('socket.io-parser'); |
|
var encoder = new parser.Encoder(); |
|
var packet = { |
|
type: parser.BINARY_EVENT, |
|
data: {i: new Buffer(1234), j: new Blob([new ArrayBuffer(2)])}, |
|
id: 15 |
|
}; |
|
encoder.encode(packet, function(encodedPackets) { |
|
var decoder = new parser.Decoder(); |
|
decoder.on('decoded', function(decodedPacket) { |
|
// decodedPacket.type == parser.BINARY_EVENT |
|
// Buffer.isBuffer(decodedPacket.data.i) == true |
|
// Buffer.isBuffer(decodedPacket.data.j) == true |
|
// decodedPacket.id == 15 |
|
}); |
|
|
|
for (var i = 0; i < encodedPackets.length; i++) { |
|
decoder.add(encodedPackets[i]); |
|
} |
|
}); |
|
``` |
|
See the test suite for more examples of how socket.io-parser is used. |
|
|
|
|
|
## License |
|
|
|
MIT |
|
|