functions-create-storage-queue-triggered-function.md

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Create a function in Azure triggered by queue messages | Microsoft Docs	Use Azure Functions to create a serverless function that is invoked by a messages submitted to an Azure Storage queue.	azure-functions	na	ggailey777	jeconnoc	361da2a4-15d1-4903-bdc4-cc4b27fc3ff4	azure-functions	multiple	quickstart	10/01/2018	glenga	mvc, cc996988-fb4f-47

Create a function triggered by Azure Queue storage

Learn how to create a function that is triggered when messages are submitted to an Azure Storage queue.

Prerequisites

• Download and install the Microsoft Azure Storage Explorer.

• An Azure subscription. If you don't have one, create a free account before you begin.

Create an Azure Function app

[!INCLUDE Create function app Azure portal]

Next, you create a function in the new function app.

Create a Queue triggered function

1. Expand your function app and click the + button next to Functions. If this is the first function in your function app, select In-portal then Continue. Otherwise, go to step three.

   

2. Choose More templates then Finish and view templates.

   

3. In the search field, type queue and then choose the Queue trigger template.

4. If prompted, select Install to install the Azure Storage extension any dependencies in the function app. After installation succeeds, select Continue.

   

5. Use the settings as specified in the table below the image.

   

   Setting	Suggested value	Description
   Name	Unique in your function app	Name of this queue triggered function.
   Queue name	myqueue-items	Name of the queue to connect to in your Storage account.
   Storage account connection	AzureWebJobStorage	You can use the storage account connection already being used by your function app, or create a new one.

6. Click Create to create your function.

Next, you connect to your Azure Storage account and create the myqueue-items storage queue.

Create the queue

1. In your function, click Integrate, expand Documentation, and copy both Account name and Account key. You use these credentials to connect to the storage account in Azure Storage Explorer. If you have already connected your storage account, skip to step 4.

   

2. Run the Microsoft Azure Storage Explorer tool, click the connect icon on the left, choose Use a storage account name and key, and click Next.

   

3. Enter the Account name and Account key from step 1, click Next and then Connect.

   

4. Expand the attached storage account, right-click Queues, click Create Queue, type myqueue-items, and then press enter.

   

Now that you have a storage queue, you can test the function by adding a message to the queue.

Test the function

1. Back in the Azure portal, browse to your function, expand the Logs at the bottom of the page, and make sure that log streaming isn't paused.

2. In Storage Explorer, expand your storage account, Queues, and myqueue-items, then click Add message.

   

3. Type your "Hello World!" message in Message text and click OK.

4. Wait for a few seconds, then go back to your function logs and verify that the new message has been read from the queue.

   

5. Back in Storage Explorer, click Refresh and verify that the message has been processed and is no longer in the queue.

Clean up resources

[!INCLUDE Next steps note]

Next steps

You have created a function that runs when a message is added to a storage queue.

[!INCLUDE Next steps note]

For more information about Queue storage triggers, see Azure Functions Storage queue bindings.