startup_tracing

Documentation

Index

• func CurrentSpanFromContext(ctx context.Context) opentracing.Span
• func Execute(op string, r *http.Request, client *http.Client) (*http.Response, error)
• func NewPropagatingRoundTripper(rt http.RoundTripper) http.RoundTripper
• func TraceChildContext(ctx context.Context, op string, ...) (err error)
• func Tracing(service string, op string) startup_http.HttpMiddleware
• func WithSpanPropagation(client *http.Client) *http.Client
• type TracingOptions
  • func (opts *TracingOptions) Initialize()
  • func (opts *TracingOptions) IsActive() bool

Functions

func CurrentSpanFromContext

func CurrentSpanFromContext(ctx context.Context) opentracing.Span

Returns the current span, or nil.

func Execute

func Execute(op string, r *http.Request, client *http.Client) (*http.Response, error)

func NewPropagatingRoundTripper

func NewPropagatingRoundTripper(rt http.RoundTripper) http.RoundTripper

func TraceChildContext

func TraceChildContext(ctx context.Context, op string, fn func(ctx context.Context, span opentracing.Span) error) (err error)

Trace a child call while propagating the span using the context.

func Tracing

func Tracing(service string, op string) startup_http.HttpMiddleware

Returns a middleware that adds tracing to an http handler. This will create a new and empty local storage for the current go routine to propagate the tracing context.

You can use the tracing middleware multiple time. Using it a second time will not start a new trace but will update 'service' and 'operation'.

func WithSpanPropagation

func WithSpanPropagation(client *http.Client) *http.Client

Returns a new http.Client that has automatic propagation of zipkin trace ids enabled.

Types

type TracingOptions

type TracingOptions struct {
	Zipkin string `long:"zipkin" validate:"omitempty,url" description:"Zipkin server base url, an URL like http://host:9411/"`

	Inputs struct {
		// The service name of your application
		ServiceName string `validate:"required"`
	}
	// contains filtered or unexported fields
}

func (*TracingOptions) Initialize

func (opts *TracingOptions) Initialize()

func (*TracingOptions) IsActive

func (opts *TracingOptions) IsActive() bool