Documentation
¶
Overview ¶
Package amqptracer provides OpenTracing instrumentation for the github.com/streadway/amqp package.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Extract ¶
func Extract(hdrs amqp.Table) (opentracing.SpanContext, error)
Extract extracts the span context out of the AMQP header.
Example:
func ConsumeMessage(ctx context.Context, msg *amqp.Delivery) error {
// Extract the span context out of the AMQP header.
spCtx, _ := amqptracer.Extract(msg.Headers)
sp := opentracing.StartSpan(
"ConsumeMessage",
opentracing.FollowsFrom(spCtx),
)
defer sp.Finish()
// Update the context with the span for the subsequent reference.
ctx = opentracing.ContextWithSpan(ctx, sp)
// Actual message processing.
return ProcessMessage(ctx, msg)
}
func Inject ¶
func Inject(span opentracing.Span, hdrs amqp.Table) error
Inject injects the span context into the AMQP header.
Example:
func PublishMessage(
ctx context.Context,
ch *amqp.Channel,
exchange, key string,
mandatory, immediate bool,
msg *amqp.Publishing,
) error {
sp := opentracing.SpanFromContext(ctx)
defer sp.Finish()
// Inject the span context into the AMQP header.
if err := amqptracer.Inject(sp, msg.Headers); err != nil {
return err
}
// Publish the message with the span context.
return ch.Publish(exchange, key, mandatory, immediate, msg)
}
Types ¶
This section is empty.
Source Files
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