C# code to start stop azure functions

C# code to start stop azure functions

Azure Functions is a serverless compute service that allows you to run code on-demand without worrying about infrastructure management. With Azure Functions, you can run small pieces of code called "functions" in the cloud. These functions can be triggered by events like changes to data in Azure Storage or incoming HTTP requests.

 In this article, we will learn how to start and stop Azure Functions using C# code. We will use the Azure Management Libraries for .NET to interact with the Azure Functions Management API.

Prerequisites

To follow this article, you will need the following:

• An Azure account with an active subscription
• Visual Studio 2019 or later installed on your machine
• Azure Management Libraries for .NET installed

Step 1: Create an Azure Functions App

First, let's create an Azure Functions App in the Azure Portal. This app will serve as the target for our start and stop functions. 

1. Go to the Azure Portal and sign in.
2. Click on the "Create a resource" button and search for "Function App".
3. Click on "Function App" and then click on the "Create" button.
4. Fill out the required information, such as subscription, resource group, and app name.
5. Select the runtime stack and operating system for your functions app.
6. Choose the hosting plan and storage account that you want to use.
7. Click on the "Create" button to create the Azure Functions App.

Step 2: Install the Azure Management Libraries for .NET

Next, let's install the Azure Management Libraries for .NET. This will allow us to use the Azure Functions Management API to start and stop our functions.

 Open Visual Studio and create a new C# console application.

1. Right-click on the project in the Solution Explorer and select "Manage NuGet Packages".
2. Search for "Microsoft.Azure.Management.Fluent" and install the latest version.
3. Search for "Microsoft.Azure.Management.AppService.Fluent" and install the latest version.

Step 3: Retrieve the Azure Functions App

Now, let's write the C# code to retrieve our Azure Functions App.

1. Import the necessary namespaces at the top of your code file:

using Microsoft.Azure.Management.Fluent;

using Microsoft.Azure.Management.ResourceManager.Fluent;

using Microsoft.Azure.Management.ResourceManager.Fluent.Core;

using Microsoft.Azure.Management.AppService.Fluent;

      2. Add the following code to retrieve the Azure Functions App:

var credentials = SdkContext.AzureCredentialsFactory.FromFile("<path-to-your-credentials-file>");

var azure = Azure

    .Configure()

    .WithLogLevel(HttpLoggingDelegatingHandler.Level.Basic)

    .Authenticate(credentials)

    .WithDefaultSubscription();

var functionApp = azure.AppServices.FunctionApps.GetByResourceGroup("<resource-group-name>", "<function-app-name>");

 The first line of code creates an Azure credentials object using a credentials file. Make sure to replace "<path-to-your-credentials-file>" with the path to your credentials file. 

The next few lines of code configure the Azure Management Libraries for .NET and authenticate with the Azure account associated with your credentials file.

 The last line of code retrieves the Azure Functions App using the resource group name and function app name.

Step 4: Start and Stop Azure Functions

Finally, let's write the C# code to start and stop our Azure Functions.

 

1. Add the following code to start the Azure Functions

         functionApp.Start();

      2. Add the following code to stop the Azure Functions:

         functionApp.Stop();

That's it! Now you can use this C# code to start and stop your Azure Functions as needed. Make sure to test your code thoroughly before deploying it to production.