authentik/internal/utils/web/http_tracing.go

package web

import (
	"context"
	"fmt"
	"net/http"

	"github.com/getsentry/sentry-go"
)

type tracingTransport struct {
	inner http.RoundTripper
	ctx   context.Context
}

func NewTracingTransport(ctx context.Context, inner http.RoundTripper) *tracingTransport {
	return &tracingTransport{inner, ctx}
}

func (tt *tracingTransport) RoundTrip(r *http.Request) (*http.Response, error) {
	span := sentry.StartSpan(tt.ctx, "authentik.go.http_request")
	r.Header.Set("sentry-trace", span.ToSentryTrace())
	span.Description = fmt.Sprintf("%s %s", r.Method, r.URL.String())
	span.SetTag("url", r.URL.String())
	span.SetTag("method", r.Method)
	defer span.Finish()
	res, err := tt.inner.RoundTrip(r.WithContext(span.Context()))
	return res, err
}