GELF stack trace from golang

gistfile1.go

package main

import (
    "fmt"
    "github.com/probkiizokna/go-gelf"
    "os"
    "runtime"
    "time"
    "encoding/json"
)

type GELFStackTrace struct {
    Version string      `json:"version"`
    Host string         `json:"host"`
    Timestamp int64     `json:"timestamp"`
    // Facility string     `json:"_facility"`
    ShortMessage string      `json:"short_message"`
    Message string      `json:"full_message"`
    StackTraceLength int `json:"_stack_trace_length"`
    StackTrace string   `json:"_stack_trace"`
}

func NewGelfLog(trace []byte, count int) ([]byte, error) {
    st :=  GELFStackTrace{}
    st.Version = "1.1"
    hn, err := os.Hostname()
    if err != nil {
        fmt.Errorf("Hostname problem: %v", err)
        os.Exit(1)
    }
    st.Host = hn
    st.ShortMessage = "Golang Stack Trace"
    st.Timestamp = time.Now().Unix()
    st.Message = string(trace[:count])

    message, err := json.Marshal(st)
    fmt.Printf("JSON: %s", string(message))
    return message, err
}

func main() {
    tcpLog, err := gelf.NewTcpClient("127.0.0.1", 12201 )
    if err != nil {
        fmt.Printf("Error: %+v", err)
    }

    trace := make([]byte, 1024*1024)
    count := runtime.Stack(trace, true)

    msg, _ := NewGelfLog(trace, count)
    tcpLog.SendMessageData(msg)
}