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Functions

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Types

type Config

type Config struct {
	Mode    LogMode
	Console ConsoleConfig
}

    Config represent high-level logger configuration.

    func DefaultConfig

    func DefaultConfig() Config

      DefaultConfig provides ready to use configuration for development mode. It is configured to support only console output with Debug logging level.

      type ConsoleConfig

      type ConsoleConfig struct {
      	Enabled bool
      	Level   LogLevel
      	Format  string
      }

        ConsoleConfig groups configuration bits

        type EchoMiddlewareLogger

        type EchoMiddlewareLogger struct {
        	DebugOnly bool
        	// contains filtered or unexported fields
        }

          EchoMiddlewareLogger is Echo Middleware compatible adapter.

          func NewEchoMiddlewareLogger

          func NewEchoMiddlewareLogger(lgr Logger) *EchoMiddlewareLogger

            NewEchoMiddlewareLogger serve as adaptation layer to convert application logger to be compatible with echo framework middleware logging logic.

            func (*EchoMiddlewareLogger) Write

            func (h *EchoMiddlewareLogger) Write(data []byte) (int, error)

            type LogLevel

            type LogLevel string

              LogLevel represent different depths for logged informations about the system.

              const (
              	// Debug level logging, should be disabled in production mode.
              	Debug LogLevel = "debug"
              	// Info level logging, default logging setting
              	Info LogLevel = "info"
              	// Warn level logging used to mark possible issues in code execution.
              	// For convenience "warn" spelling is also accepted.
              	Warn LogLevel = "warning"
              	// Error level logging logs errors
              	Error LogLevel = "error"
              	// Fatal level logging, log is recorded and application terminates after.
              	Fatal LogLevel = "fatal"
              )

              type LogMode

              type LogMode string

                LogMode defines different logging strategies.

                const (
                	DevelopMode    LogMode = "develop"
                	ProductionMode LogMode = "production"
                )

                type Logger

                type Logger interface {
                	Debug(args ...interface{})
                	Debugf(format string, args ...interface{})
                	Info(args ...interface{})
                	Infof(format string, args ...interface{})
                	Warn(args ...interface{})
                	Warnf(format string, args ...interface{})
                	Error(args ...interface{})
                	Errorf(format string, args ...interface{})
                	Fatal(args ...interface{})
                	Fatalf(format string, args ...interface{})
                	WithPrefix(pfx string) Logger
                }

                  logger interface describes logging abstraction layer.

                  func New

                  func New(cfg Config) Logger

                    New returns an instance of structured logger.

                    type NOP

                    type NOP struct{}

                      NOP provide no-ops implementation for Logger interface.

                      func (NOP) Debug

                      func (nl NOP) Debug(args ...interface{})

                      func (NOP) Debugf

                      func (nl NOP) Debugf(format string, args ...interface{})

                      func (NOP) Error

                      func (nl NOP) Error(args ...interface{})

                      func (NOP) Errorf

                      func (nl NOP) Errorf(format string, args ...interface{})

                      func (NOP) Fatal

                      func (nl NOP) Fatal(args ...interface{})

                      func (NOP) Fatalf

                      func (nl NOP) Fatalf(format string, args ...interface{})

                      func (NOP) Info

                      func (nl NOP) Info(args ...interface{})

                      func (NOP) Infof

                      func (nl NOP) Infof(format string, args ...interface{})

                      func (NOP) Warn

                      func (nl NOP) Warn(args ...interface{})

                      func (NOP) Warnf

                      func (nl NOP) Warnf(format string, args ...interface{})

                      func (NOP) WithPrefix

                      func (nl NOP) WithPrefix(name string) Logger

                      Source Files