protofix

protofix

FIX protocol codec for Go.
Source files are distributed under the BSD-style license found in the LICENSE file.

About

The software is considered to be at an alpha level of readiness - its incomplete and extremely slow and allocates a lots of memory)

Install

go get github.com/protofix/protofix@v0.0.60

Usage

package main

import (
    "bytes"
    "time"

    "github.com/protofix/protofix/fix44/fix44logon"
)

func main() {
    type Logon struct {
        BeginString8       string    `FIX44:"8"`
        BodyLength9        int       `FIX44:"9"`
        MsgType35          string    `FIX44:"35"`
        SenderCompID49     string    `FIX44:"49"`
        TargetCompID56     string    `FIX44:"56"`
        MsgSeqNum34        int       `FIX44:"34"`
        SendingTime52      time.Time `FIX44:"52"`
        EncryptMethod98    int       `FIX44:"98"`
        HeartBtInt108      int       `FIX44:"108"`
        ResetSeqNumFlag141 bool      `FIX44:"141"`
        Username553        string    `FIX44:"553"`
        Password554        string    `FIX44:"554"`
        CheckSum10         string    `FIX44:"10"`
    }

    input := []byte("8=FIX.4.4|9=102|35=A|49=BuySide|56=SellSide|34=1|52=20190605-11:40:30.392|98=0|108=30|141=Y|553=Username|554=Password|10=104|")
    input = bytes.ReplaceAll(input, []byte{'|'}, []byte{0x01})

    logon := Logon{}

    _, _, _ = fix44logon.FIX44LogonUnmarshaler.Unmarshal(input, &logon)

	fmt.Printf("%+v\n", logon)

    output, _, _, _ := fix44logon.FIX44LogonMarshaler.Marshal(&logon)

    input = bytes.ReplaceAll(input, []byte{0x01}, []byte{'|'})
    output = bytes.ReplaceAll(output, []byte{0x01}, []byte{'|'})

    if bytes.Equal(input, output) {
        fmt.Printf("Message %q are equal to %q.\n", input, output)
    } else {
        fmt.Printf("Message %q are not equal to %q!\n", input, output)
    }
}

Output:

{BeginString8:FIX.4.4 BodyLength9:102 MsgType35:A SenderCompID49:BuySide TargetCompID56:SellSide MsgSeqNum34:1 SendingTime52:2019-06-05 11:40:30.392 +0000 UTC EncryptMethod98:0 HeartBtInt108:30000000000 ResetSeqNumFlag141:true Username553:Username Password554:Password CheckSum10:104}
Message "8=FIX.4.4|9=102|35=A|49=BuySide|56=SellSide|34=1|52=20190605-11:40:30.392|98=0|108=30|141=Y|553=Username|554=Password|10=104|" are equal to "8=FIX.4.4|9=102|35=A|49=BuySide|56=SellSide|34=1|52=20190605-11:40:30.392|98=0|108=30|141=Y|553=Username|554=Password|10=104|".

See this example in fix44_logon_readme_test.go

Benchmark

go test -bench=. ./...
goos: linux
goarch: amd64
pkg: github.com/protofix/protofix/fix44/fix44logon
cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
BenchmarkLogonUnmarshalMarshal
BenchmarkLogonUnmarshalMarshal-8   	   26072	     43186 ns/op	    5536 B/op	     223 allocs/op