---
title: "How do you configure Azure App Service Environment for an ASP.NET Core API?"  
description: "How do you configure Azure App Service Environment for an ASP.NET Core API?"  
author: "Amrith Chandran"  
published: 2026-09-17  
canonical: https://answers.mindstick.com/qa/117210/how-do-you-configure-azure-app-service-environment-for-an-asp-net-core-api  
category: "Cloud Infrastructure"  
tags: ["azure", "ASE", "networking", "security"]  
reading_time: 1 minute  

---

# How do you configure Azure App Service Environment for an ASP.NET Core API?

## Isolating Your Backend in Azure

Running a public-facing ASP.NET Core API on shared infrastructure invites unnecessary risk. A dedicated App Service Environment (ASE) gives you isolated compute and networking inside Azure's backbone, which is exactly what compliance-heavy workloads need.

### Prerequisites and Deployment

You will need an existing Azure subscription, an active App Service plan, and the Azure CLI or portal access. The ASE itself is a separate resource group that must be provisioned before you attach any app to it.

```cs
// Create the ASE resource group and environment using the Azure CLI.
// This command provisions the isolated virtual network and dedicated App Service plan.
var ase = await Azure.Resources.CreateAppServiceEnvironmentAsync(
    resourceGroupName: "ase-rg",
    name: "my-ase",
    location: "East US",
    sku: new AppServiceEnvironmentSku(SkuName.StandardS1, SkuTier.Standard),
    subnetResourceId: "/subscriptions/.../subnets/ase-subnet");

// Configure the web app to run inside the ASE by linking its App Service Plan.
var webApp = await Azure.WebApps.Define(webAppName: "api-ase")
    .WithRegion(Region.USEast)
    .WithExistingResourceGroup("ase-rg")
    .WithAppServicePlan(planName: "ase-plan")
    .CreateAsync();
```

After deployment, verify connectivity by curling the app's private endpoint from a VM inside the same subnet. If the request fails, check the network rules and the ASE's outbound IP restrictions.


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Original Source: https://answers.mindstick.com/qa/117210/how-do-you-configure-azure-app-service-environment-for-an-asp-net-core-api

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