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functions-create-scheduled-function.md

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title description ms.assetid ms.topic ms.date ms.custom
Create a function in Azure that runs on a schedule
Learn how to use the Azure portal to create a function that runs based on a schedule that you define.
ba50ee47-58e0-4972-b67b-828f2dc48701
how-to
04/16/2020
mvc, cc996988-fb4f-47

Create a function in the Azure portal that runs on a schedule

Learn how to use the Azure portal to create a function that runs serverless on Azure based on a schedule that you define.

Prerequisites

To complete this tutorial:

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

Create a function app

[!INCLUDE Create function app Azure portal]

Your new function app is ready to use. Next, you'll create a function in the new function app.

:::image type="content" source="./media/functions-create-scheduled-function/function-app-create-success.png" alt-text="Function app successfully created." border="true":::

Create a timer triggered function

  1. In your function app, select Functions, and then select + Add

    :::image type="content" source="./media/functions-create-scheduled-function/function-add-function.png" alt-text="Add a function in the Azure portal." border="true":::

  2. Select the Timer trigger template.

    :::image type="content" source="./media/functions-create-scheduled-function/function-select-timer-trigger.png" alt-text="Select the timer trigger in the Azure portal." border="true":::

  3. Configure the new trigger with the settings as specified in the table below the image, and then select Create Function.

    :::image type="content" source="./media/functions-create-scheduled-function/function-configure-timer-trigger.png" alt-text="Screenshot shows the New Function page with the Timer Trigger template selected." border="true":::

    Setting Suggested value Description
    Name Default Defines the name of your timer triggered function.
    Schedule 0 */1 * * * * A six field CRON expression that schedules your function to run every minute.

Test the function

  1. In your function, select Code + Test and expand the logs.

    :::image type="content" source="./media/functions-create-scheduled-function/function-test-timer-trigger.png" alt-text="Test the timer trigger in the Azure portal." border="true":::

  2. Verify execution by viewing the information written to the logs.

    :::image type="content" source="./media/functions-create-scheduled-function/function-view-timer-logs.png" alt-text="View the timer trigger in the Azure portal." border="true":::

Now, you change the function's schedule so that it runs once every hour instead of every minute.

Update the timer schedule

  1. In your function, select Integration. Here, you define input and output bindings for your function and also set the schedule.

  2. Select Timer (myTimer).

    :::image type="content" source="./media/functions-create-scheduled-function/function-update-timer-schedule.png" alt-text="Update the timer schedule in the Azure portal." border="true":::

  3. Update the Schedule value to 0 0 */1 * * *, and then select Save.

    :::image type="content" source="./media/functions-create-scheduled-function/function-edit-timer-schedule.png" alt-text="Update function timer schedule in the Azure portal." border="true":::

You now have a function that runs once every hour, on the hour.

Clean up resources

[!INCLUDE Next steps note]

Next steps

You've created a function that runs based on a schedule. For more information about timer triggers, see Schedule code execution with Azure Functions.

[!INCLUDE Next steps note]