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

http

package

Go to main page

Versions in this module

v0

v0.2.3

Aug 24, 2026

v0.2.2

Aug 5, 2026

v0.2.1

Aug 4, 2026

v0.2.0

Aug 3, 2026

v0.1.4

Aug 2, 2026

v0.1.3

Jul 27, 2026

Changes in this version

type RetryConfig

+ RetryAllMethods bool

+ RetryableMethods []string

+ func (c RetryConfig) WithRetryAllMethods() RetryConfig

v0.1.2

Jul 24, 2026

v0.1.1

Jul 23, 2026

v0.1.0

Jul 16, 2026

Changes in this version

+ const StateClosed

+ const StateHalfOpen

+ const StateOpen

+ var ErrCircuitOpen = errors.New("http: circuit breaker is open")

+ func ClientIPKey(r *http.Request) string

+ func NewRetryTransport(next http.RoundTripper, cfg RetryConfig) http.RoundTripper

+ type Chain struct

+ func NewChain(middlewares ...Middleware) Chain

+ func (c Chain) Append(middlewares ...Middleware) Chain

+ func (c Chain) Extend(other Chain) Chain

+ func (c Chain) Then(handler http.Handler) http.Handler

+ func (c Chain) ThenFunc(fn http.HandlerFunc) http.Handler

+ type CircuitBreakerConfig struct

+ Cooldown time.Duration

+ FailureThreshold int

+ HalfOpenMaxRequests int

+ IsFailure func(resp *http.Response, err error) bool

+ OnStateChange func(from, to CircuitState)

+ func DefaultCircuitBreakerConfig() CircuitBreakerConfig

+ func MergeCircuitBreakerConfig(base, override CircuitBreakerConfig, fields CircuitBreakerConfigOverrides) CircuitBreakerConfig

+ type CircuitBreakerConfigOverrides struct

+ Cooldown bool

+ FailureThreshold bool

+ HalfOpenMaxRequests bool

+ type CircuitState int

+ func (s CircuitState) String() string

+ type ClientChain struct

+ func NewClientChain(middlewares ...ClientMiddleware) ClientChain

+ func (c ClientChain) Append(middlewares ...ClientMiddleware) ClientChain

+ func (c ClientChain) Then(rt http.RoundTripper) http.RoundTripper

+ type ClientMiddleware func(next http.RoundTripper) http.RoundTripper

+ func WithBasicAuth(username, password string) ClientMiddleware

+ func WithBearerToken(token string) ClientMiddleware

+ func WithCircuitBreaker(log *slog.Logger, cfg CircuitBreakerConfig) ClientMiddleware

+ func WithRateLimit(requestsPerSecond float64) ClientMiddleware

+ func WithRequestLogging(log *slog.Logger) ClientMiddleware

+ type LogFormat int

+ const FormatCombined

+ const FormatCommon

+ const FormatJSON

+ const FormatStructured

+ type LoggingOption func(*loggingConfig)

+ func WithFormat(format LogFormat) LoggingOption

+ func WithHeaderFields(headers ...string) LoggingOption

+ func WithLogLevel(level slog.Level) LoggingOption

+ func WithPathFilter(paths ...string) LoggingOption

+ func WithTrustedProxy() LoggingOption

+ func WithoutLatency() LoggingOption

+ func WithoutUserAgent() LoggingOption

+ type Middleware func(http.Handler) http.Handler

+ func LoggingMiddleware(l *slog.Logger, opts ...LoggingOption) Middleware

+ func OTelMiddleware(server string, opts ...otelhttp.Option) Middleware

+ func RateLimitMiddleware(log *slog.Logger, cfg RateLimitConfig) Middleware

+ type RateLimitConfig struct

+ Burst int

+ KeyFunc func(*http.Request) string

+ MaxTrackedKeys int

+ OnLimited func(*http.Request)

+ RequestsPerSecond float64

+ func DefaultRateLimitConfig() RateLimitConfig

+ func MergeRateLimitConfig(base, override RateLimitConfig, fields RateLimitConfigOverrides) RateLimitConfig

+ type RateLimitConfigOverrides struct

+ Burst bool

+ MaxTrackedKeys bool

+ RequestsPerSecond bool

+ type RetryConfig struct

+ InitialBackoff time.Duration

+ MaxBackoff time.Duration

+ MaxRetries int

+ RetryableStatusCodes []int

+ ShouldRetry func(attempt int, resp *http.Response, err error) bool

+ func DefaultRetryConfig() RetryConfig