http, websocket api handler 추가

logger/logger.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"os"
 	"path"
+	"runtime"
 	"runtime/debug"
 	"strings"
 )
@@ -101,3 +102,44 @@ func Panicln(v ...interface{}) {
 	errlogger.Output(2, string(debug.Stack()))
 	panic(s)
 }
+
+type errWithCallstack struct {
+	inner  error
+	frames []*runtime.Frame
+}
+
+func (ecs *errWithCallstack) Error() string {
+	if ecs.frames == nil {
+		return ecs.inner.Error()
+	}
+
+	out := make([]string, 0, len(ecs.frames)+1)
+	out = append(out, ecs.inner.Error())
+	for i := len(ecs.frames) - 1; i >= 0; i-- {
+		frame := ecs.frames[i]
+		out = append(out, fmt.Sprintf("%s\n\t%s:%d", frame.Function, frame.File, frame.Line))
+	}
+
+	return strings.Join(out, "\n")
+}
+
+func ErrorWithCallStack(err error) error {
+	var frames []*runtime.Frame
+
+	if recur, ok := err.(*errWithCallstack); ok {
+		err = recur.inner
+		frames = recur.frames
+	}
+
+	pc, _, _, ok := runtime.Caller(1)
+	if ok {
+		curframes := runtime.CallersFrames([]uintptr{pc})
+		f, _ := curframes.Next()
+		frames = append(frames, &f)
+	}
+
+	return &errWithCallstack{
+		inner:  err,
+		frames: frames,
+	}
+}