log

Documentation

Index

• func CaptureOutput(logger Logger, debug bool, fn func() error) error
• type CustomWriter
  • func (cw *CustomWriter) Write(p []byte) (n int, err error)
• type Fields
• type Logger
  • func FromContext(ctx context.Context) Logger
  • func NewLogger(out io.Writer) Logger

Functions

func CaptureOutput

func CaptureOutput(logger Logger, debug bool, fn func() error) error

CaptureOutput redirects stdout and stderr to custom loggers and executes the provided function

Types

type CustomWriter

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

CustomWriter forwards log messages to the application's logger

func (*CustomWriter) Write

func (cw *CustomWriter) Write(p []byte) (n int, err error)

type Fields

type Fields map[string]string

Fields defines fields to attach to log msgs

type Logger

type Logger interface {
	SetLevel(string)
	With(Fields) *logger
	WithContext(context.Context) context.Context

	Errorf(string, ...interface{})
	Infof(string, ...interface{})
	Warnf(string, ...interface{})
	Debugf(string, ...interface{})
}

Logger provides an interface for all used logger features regardless of logging backend

func FromContext

func FromContext(ctx context.Context) Logger

FromContext returns a Logger from a context if it exists

func NewLogger

func NewLogger(out io.Writer) Logger

NewLogger returns a new Logger