logging

Documentation

Index

• func BuildLogger(level Level) *zap.Logger
• func NewNullGRPCLogger() grpclog.Logger
• type Config
  • func (m *Config) LogLevel() Level
• type Level
  • func NewLevel(level zapcore.Level) *Level
  • func NewLevelFromString(level string) (*Level, error)
  • func (m *Level) UnmarshalYAML(unmarshal func(interface{}) error) error
  • func (m Level) Zap() zapcore.Level
• type Leveler
• type NullLogger
  • func (n *NullLogger) Fatal(args ...interface{})
  • func (n *NullLogger) Fatalf(format string, args ...interface{})
  • func (n *NullLogger) Fatalln(args ...interface{})
  • func (n *NullLogger) Print(args ...interface{})
  • func (n *NullLogger) Printf(format string, args ...interface{})
  • func (n *NullLogger) Println(args ...interface{})

Functions

func BuildLogger

func BuildLogger(level Level) *zap.Logger

BuildLogger return new zap.Logger instance with given severity and debug settings

func NewNullGRPCLogger

func NewNullGRPCLogger() grpclog.Logger

NewNullGRPCLogger returns new grpclog.Logger that log nothing.

useful for debugging to suppress lot of errors from gRPC transport when external service is unavailable

Note: logger must be set into the init() function, e.g:

		func init() {
    		grpclog.SetLogger(logging.NewNullGRPCLogger())
		}

Types

type Config

type Config struct {
	Level *Level `yaml:"level" required:"true" default:"info"`
}

Config represents a logging config.

func (*Config) LogLevel

func (m *Config) LogLevel() Level

type Level

type Level struct {
	// contains filtered or unexported fields
}

Level represents a shifted zap logging level that is able to being constructed from YAML.

func NewLevel

func NewLevel(level zapcore.Level) *Level

func NewLevelFromString

func NewLevelFromString(level string) (*Level, error)

func (*Level) UnmarshalYAML

func (m *Level) UnmarshalYAML(unmarshal func(interface{}) error) error

func (Level) Zap

func (m Level) Zap() zapcore.Level

Zap returns the underlying zap logging level.

type Leveler

type Leveler interface {
	// LogLevel return log verbosity.
	LogLevel() Level
}

type NullLogger

type NullLogger struct{}

func (*NullLogger) Fatal

func (n *NullLogger) Fatal(args ...interface{})

func (*NullLogger) Fatalf

func (n *NullLogger) Fatalf(format string, args ...interface{})

func (*NullLogger) Fatalln

func (n *NullLogger) Fatalln(args ...interface{})

func (*NullLogger) Print

func (n *NullLogger) Print(args ...interface{})

func (*NullLogger) Printf

func (n *NullLogger) Printf(format string, args ...interface{})

func (*NullLogger) Println

func (n *NullLogger) Println(args ...interface{})