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Azure Storage

Quick start

Instrumentation can be enabled for Azure Storage by referencing Elastic.Apm.Azure.Storage 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 you’re using Azure.Storage.Blobs, subscribe AzureBlobStorageDiagnosticsSubscriber with the agent
```
Agent.Subscribe(new AzureBlobStorageDiagnosticsSubscriber());
```
If you’re using Azure.Storage.Queues, subscribe AzureQueueStorageDiagnosticsSubscriber with the agent
```
Agent.Subscribe(new AzureQueueStorageDiagnosticsSubscriber());
```
If you’re using Azure.Storage.Files.Shares, subscribe AzureFileShareStorageDiagnosticsSubscriber with the agent
```
Agent.Subscribe(new AzureFileShareStorageDiagnosticsSubscriber());
```

For Azure Queue storage,

A new transaction is created when one or more messages are received from a queue
A new span is created when there is a current transaction, and when a message is sent to a queue

For Azure Blob storage, a new span is created when there is a current transaction and when a request is made to blob storage.

For Azure File Share storage, a new span is crated when there is a current transaction and when a request is made to file storage.

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