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Create your first function from the Azure Portal | Microsoft Docs
Learn how to create your first Azure Function for serverless execution using the Azure portal.
functions
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ggailey777
jeconnoc
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azure-functions
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quickstart
03/28/2018
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mvc, devcenter, cc996988-fb4f-47

Create your first function in the Azure portal

Azure Functions lets you execute your code in a serverless environment without having to first create a VM or publish a web application. In this topic, learn how to use Functions to create a "hello world" function in the Azure portal.

Create function app in the Azure portal

[!INCLUDE quickstarts-free-trial-note]

[!NOTE] C# developers should consider creating your first function in Visual Studio 2017 instead of in the portal.

Log in to Azure

Sign in to the Azure portal at https://portal.azure.com with your Azure account.

Create a function app

You must have a function app to host the execution of your functions. A function app lets you group functions as a logic unit for easier management, deployment, and sharing of resources.

[!INCLUDE Create function app Azure portal]

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

Create an HTTP triggered function

  1. Expand your new function app, then select the + button next to Functions, choose In-portal, and select Continue.

    Functions quickstart choose platform.

  2. Choose WebHook + API and then select Create.

    Functions quickstart in the Azure portal.

A function is created using a language-specific template for an HTTP triggered function.

Now, you can run the new function by sending an HTTP request.

Test the function

  1. In your new function, click </> Get function URL at the top right, select default (Function key), and then click Copy.

    Copy the function URL from the Azure portal

  2. Paste the function URL into your browser's address bar. Add the query string value &name=<yourname> to the end of this URL and press the Enter key on your keyboard to execute the request. You should see the response returned by the function displayed in the browser.

    The following example shows the response in the browser:

    Function response in the browser.

    The request URL includes a key that is required, by default, to access your function over HTTP.

  3. When your function runs, trace information is written to the logs. To see the trace output from the previous execution, return to your function in the portal and click the arrow at the bottom of the screen to expand the Logs.

    Functions log viewer in the Azure portal.

Clean up resources

[!INCLUDE Clean-up resources]

Next steps

You have created a function app with a simple HTTP triggered function.

[!INCLUDE Next steps note]

For more information, see Azure Functions HTTP bindings.