golang-saas-starter-kit/example-project/internal/platform/logger/log.go

package logger

import (
	"context"
	"fmt"
	"geeks-accelerator/oss/saas-starter-kit/example-project/internal/platform/web"
)

// WithContext manual injects context values to log message including Trace ID
func WithContext(ctx context.Context, msg string) string {
	v, ok := ctx.Value(web.KeyValues).(*web.Values)
	if !ok {
		return msg
	}

	cm := fmt.Sprintf("dd.trace_id=%d dd.span_id=%d", v.TraceID, v.SpanID)

	return cm + ": " + msg
}