Coffee journaling on ATProto (alpha)
alpha.arabica.social
coffee
feat: improved otel traces for feed requests
+19
+3
internal/web/components/layout.templ
+3
internal/web/components/layout.templ
···
260
260
if data.UserDID != "" {
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data-user-did={ data.UserDID }
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}
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+
if tp := traceParentFromContext(ctx); tp != "" {
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+
hx-headers={ `{"traceparent":"` + tp + `"}` }
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+
}
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266
>
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<!-- Session expired modal -->
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<dialog id="session-expired-modal" class="modal-dialog">
+16
internal/web/components/trace.go
+16
internal/web/components/trace.go
···
1
+
package components
2
+
3
+
import (
4
+
"context"
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+
6
+
"go.opentelemetry.io/otel"
7
+
"go.opentelemetry.io/otel/propagation"
8
+
)
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+
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+
// traceParentFromContext extracts the W3C traceparent header value from the
11
+
// current span context so it can be propagated to client-side HTMX requests.
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+
func traceParentFromContext(ctx context.Context) string {
13
+
carrier := propagation.MapCarrier{}
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+
otel.GetTextMapPropagator().Inject(ctx, carrier)
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+
return carrier["traceparent"]
16
+
}