Documentation
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Overview ¶
Package otelecho provides OpenTelemetry instrumentation for Labstack Echo.
This package wraps the upstream OpenTelemetry contrib package (go.opentelemetry.io/contrib/instrumentation/github.com/labstack/echo/otelecho) so that Echo handles an error returned by a handler exactly once. Tracers are resolved from the global OpenTelemetry TracerProvider, and active spans remain in the standard request context.
The upstream package is used directly as a dependency instead of copying the code so this wrapper benefits from upstream updates and fixes.
Note: The upstream package's go.mod contains a replace directive for the b3 propagator, but this is resolved automatically by Go's module system when using the package as a dependency. The replace directive is ignored for dependencies and only affects builds within the upstream repository itself.
Index ¶
Constants ¶
const ( // TracerName is name of the tracer TracerName = "go.opentelemetry.io/contrib/instrumentation/github.com/labstack/echo/otelecho" // TraceIDHeader carries the hex trace id of the server span on every // response, so a caller can quote it when reporting a failed request. TraceIDHeader = "X-Nico-Trace-Id" )
Variables ¶
var ( WithPropagators = upstreamotelecho.WithPropagators WithTracerProvider = upstreamotelecho.WithTracerProvider WithSkipper = upstreamotelecho.WithSkipper )
Functions ¶
func Middleware ¶
func Middleware(service string, opts ...upstreamotelecho.Option) echo.MiddlewareFunc
Middleware wraps the upstream otelecho middleware and ensures Echo handles a returned error exactly once.
Source Files