Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
- API
  
  Reference documentation for the pkg.go.dev API
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

formatter

package

Go to main page

Versions in this module

v0

v0.3.0

Jun 16, 2026

v0.2.0

Apr 18, 2026

v0.1.3

Dec 16, 2025

v0.1.2

Nov 8, 2025

Changes in this version

type FormatterAdapter

+ func (f *FormatterAdapter) FormatterFunctions() []func([]string, slog.Attr) (slog.Value, bool)

v0.1.1

Oct 16, 2025

v0.1.0

Sep 29, 2025

Changes in this version

+ type Formatter func(groups []string, attr slog.Attr) (slog.Value, bool)

+ func ErrorFormatter(fieldName string) Formatter

+ func FormatByFieldType[T any](key string, formatter func(T) slog.Value) Formatter

+ func FormatByGroup(groups []string, formatter func([]slog.Attr) slog.Value) Formatter

+ func FormatByGroupKey(groups []string, key string, formatter func(slog.Value) slog.Value) Formatter

+ func FormatByGroupKeyType[T any](groups []string, key string, formatter func(T) slog.Value) Formatter

+ func FormatByKey(key string, formatter func(slog.Value) slog.Value) Formatter

+ func FormatByKind(kind slog.Kind, formatter func(slog.Value) slog.Value) Formatter

+ func FormatByType[T any](formatter func(T) slog.Value) Formatter

+ func Format[T any](formatter func([]string, string, slog.Value) slog.Value) Formatter

+ func HTTPRequestFormatter(ignoreHeaders bool) Formatter

+ func HTTPResponseFormatter(ignoreHeaders bool) Formatter

+ func IPAddressFormatter(key string) Formatter

+ func PIIFormatter(key string) Formatter

+ func TimeFormatter(timeFormat string, location *time.Location) Formatter

+ func TimezoneConverter(location *time.Location) Formatter

+ func UnixTimestampFormatter(precision time.Duration) Formatter

+ type FormatterAdapter struct

+ func NewFormatterAdapter() *FormatterAdapter

+ func (f *FormatterAdapter) Configure(config modules.Config) error

+ func (f *FormatterAdapter) GetFormatters() interface{}

+ type LogValuerFunc func(any) (slog.Value, bool)