middleware

Documentation

Index

• Constants
• func LoggerFrom(ctx context.Context) kitlog.Logger
• func Observe() func(e goa.Endpoint) goa.Endpoint
• func ObserveHTTP(logger kitlog.Logger) func(h http.Handler) http.Handler

Constants

const (
	LoggerKey = ctxKey("LoggerKey")
)

Functions

func LoggerFrom

func LoggerFrom(ctx context.Context) kitlog.Logger

LoggerFrom retrieves the stashed logger from a request context, as put there by StashLogger middleware.

func Observe

func Observe() func(e goa.Endpoint) goa.Endpoint

Observe is the transport-independent observability middleware. As transport middlewares are run before application middlewares, we depend on the user having configured the transport-specific o11y middleware for this to work.

func ObserveHTTP

func ObserveHTTP(logger kitlog.Logger) func(h http.Handler) http.Handler

ObserveHTTP configures a standard HTTP o11y stack. The handler wrappers are run in reverse order that they are applied, which means we have to 'wrap' our custom behaviour before any of the vendor middleware that it depends on.