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Azure Service Bus

Quick start

Instrumentation can be enabled for Azure Service Bus by referencing Elastic.Apm.Azure.ServiceBus package and subscribing to diagnostic events using one of the subscribers:

If the agent is included by referencing the Elastic.Apm.NetCoreAll package, the subscribers will be automatically subscribed with the agent, and no further action is required.
If youR17;re using Microsoft.Azure.ServiceBus, subscribe MicrosoftAzureServiceBusDiagnosticsSubscriber with the agent
```
Agent.Subscribe(new MicrosoftAzureServiceBusDiagnosticsSubscriber());
```
If youR17;re using Azure.Messaging.ServiceBus, subscribe AzureMessagingServiceBusDiagnosticsSubscriber with the agent
```
Agent.Subscribe(new AzureMessagingServiceBusDiagnosticsSubscriber());
```

A new transaction is created when

one or more messages are received from a queue or topic subscription.
a message is receive deferred from a queue or topic subscription.

A new span is created when there is a current transaction, and when

one or more messages are sent to a queue or topic.
one or more messages are scheduled to a queue or a topic.

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