socket.io-go-parser

This is the golang parser for the socket.io protocol encoding, shared by both socket.io-client-go(not ready) and socket.io.

Compatibility table:

Parser version	Socket.IO server version	Protocol revision
1.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.

Example Usage

Encoding and decoding a packet

package main

import (
  "github.com/zishang520/engine.io/v2/utils"
  "github.com/zishang520/socket.io-go-parser/v2/parser"
)

func main() {
  encoder := parser.NewEncoder()
  id := uint64(13)
  packet := &parser.Packet{
    Type: parser.EVENT,
    Data: []string{"test-packet"},
    Id:   &id,
  }
  encodedPackets := encoder.Encode(packet)
  utils.Log().Default("encode %v", encodedPackets)

  for _, encodedPacket := range encodedPackets {
    decoder := parser.NewDecoder()
    decoder.On("decoded", func(decodedPackets ...any) {
      utils.Log().Default("decode %v", decodedPackets[0])
      // decodedPackets[0].Type == parser.EVENT
      // decodedPackets[0].Data == []string{"test-packet"}
      // decodedPackets[0].Id == 13
    })

    decoder.Add(encodedPacket)
  }
}

Encoding and decoding a packet with binary data

package main

import (
  "github.com/zishang520/engine.io/v2/utils"
  "github.com/zishang520/socket.io-go-parser/v2/parser"
)

func main() {
  encoder := parser.NewEncoder()
  id := uint64(13)
  attachments := uint64(0)
  packet := &parser.Packet{
    Type:        parser.BINARY_EVENT,
    Data:        []any{"test-packet", []byte{1, 2, 3, 4, 5}},
    Id:          &id,
    Attachments: &attachments,
  }
  encodedPackets := encoder.Encode(packet)
  utils.Log().Default("encode %v", encodedPackets)

  for _, encodedPacket := range encodedPackets {
    decoder := parser.NewDecoder()
    decoder.On("decoded", func(decodedPackets ...any) {
      utils.Log().Default("decode %v", decodedPackets[0])
      // decodedPackets[0].Type == parser.BINARY_EVENT
      // decodedPackets[0].Data == []any{"test-packet", []byte{1, 2, 3, 4, 5}}
      // decodedPackets[0].Id == 13
    })

    decoder.Add(encodedPacket)
  }
}

See the test suite for more examples of how socket.io-parser is used.

Tests

Standalone tests can be run with make test which will run the golang tests.

You can run the tests locally using the following command:

make test

Support

issues

Development

To contribute patches, run tests or benchmarks, make sure to clone the repository:

git clone git://github.com/zishang520/socket.io-go-parser.git

Then:

cd socket.io-go-parser
make test

See the Tests section above for how to run tests before submitting any patches.

License

MIT