requestid

Documentation

Overview

Package requestid is used to add/extract a request identifier to/from a context.Context.

Index

• func Extract(ctx context.Context, in, out http.Header) context.Context
• func FromContext(ctx context.Context) string
• func ToContext(ctx context.Context, id string) context.Context

Functions

func Extract

func Extract(ctx context.Context, in, out http.Header) context.Context

Extract the request id from the X-Request-ID header from 'in'. If it does not exist, it is generated as a V4 UUID. The X-Request-ID is then set on 'out'. The returned context contains the request id and if tracing is enabled the request id is added to the current span.

func FromContext

func FromContext(ctx context.Context) string

FromContext obtains a request id from a context.

func ToContext

func ToContext(ctx context.Context, id string) context.Context

ToContext adds a request id to a context.