--- /dev/null
+package echo
+
+import (
+ "io"
+
+ "github.com/labstack/gommon/log"
+)
+
+type (
+ // Logger defines the logging interface.
+ Logger interface {
+ Output() io.Writer
+ SetOutput(w io.Writer)
+ Prefix() string
+ SetPrefix(p string)
+ Level() log.Lvl
+ SetLevel(v log.Lvl)
+ Print(i ...interface{})
+ Printf(format string, args ...interface{})
+ Printj(j log.JSON)
+ Debug(i ...interface{})
+ Debugf(format string, args ...interface{})
+ Debugj(j log.JSON)
+ Info(i ...interface{})
+ Infof(format string, args ...interface{})
+ Infoj(j log.JSON)
+ Warn(i ...interface{})
+ Warnf(format string, args ...interface{})
+ Warnj(j log.JSON)
+ Error(i ...interface{})
+ Errorf(format string, args ...interface{})
+ Errorj(j log.JSON)
+ Fatal(i ...interface{})
+ Fatalj(j log.JSON)
+ Fatalf(format string, args ...interface{})
+ Panic(i ...interface{})
+ Panicj(j log.JSON)
+ Panicf(format string, args ...interface{})
+ }
+)