How to deploy ASP.NET Core Web API in Azure App Service

 

In this article, I am going to discuss how to deploy ASP.NET Core Web API application in Azure App Service. Here, we will discuss about below points:

• How to create App Service in Azure?
• How to deploy ASP.NET Core Web API in Azure App Service?

How to create App Service in Azure?

Let me first give a brief introduction of Azure App Service. Azure App Service is an HTTP-based service for hosting web applications, REST APIs, and mobile back ends. We can used it to deploy applications built in .NET, .NET Core, Java, Ruby, Node.js, PHP, or Python. It is platform as a service provided by the Microsoft. We don't need to have worry about setup things on machine, because everything is made ready by Microsoft itself.

Based on the technology we have used to build application we have to configure that on creation of App Service. We will do it in this article.

If you haven't seen my previous article then please go through that once because we are going to use the same application for deployment.

Step1: Login to Azure Portal

Step2: Search for App Services in top search bar and click on App Services under Services section

Step3: Click on Create button in App Services page

Step4:

Select your Subscription from available options in dropdown.

Select a Resource Group from available resource groups or Create New.

Provide a unique domain name for your Web API. For this demo I have given name webapidemo1990

Select Code radio button under Publish section

From Runtime stack dropdown select .NET 6(LTS). We are selecting this because we developed ASP.NET Core Web API in .NET 6. Based on your application technology and version you can select the relevant option. On selection of .NET 6(LTS), it will automatically select Windows operating system.

From Windows Plan section click on Create new button and provide a name then select Free F1 (Shared infrastructure) option.

Keep the rest of settings as it is.

Now either you can click on Next : Deployment> button or directly can click on Review + create button

Once you done this, Azure will create App Service for you and on successful creation below screen will be shown:

How to deploy ASP.NET Core Web API in Azure App Service?

Step1:  Go to your ASP.NET Core Web API project and right click on your project solution file name in Solution Explorer.

Step2:  Click on Publish from available options.

Step3:  Select Azure option from publish window and click on Next button.

Step4:  Select Azure App Service option from publish window and click on Next button.

Step5:  It will ask to login on Azure if you haven’t login before.  After login select the App Service from resource group which you had created. Finally click on Finish button.

Step6:  Click on Publish button. It will publish all code to Azure App Service. Once you got Publish succeeded message you can check it via directly browsing Web API url in browser or through any rest client tools like postman.

Step7:  If you have read my previous article you already know we were accessing Web API methods by using below URLs.

http://localhost:xxxxx/xyz/{ControllerName}/{ActionName}

But now these methods will be access by below url.

https://webapidemo1990.azurewebsites.net/xyz/{ControllerName}/{ActionName}

As per our Web API, below are the URLs for methods we created.

https://webapidemo1990.azurewebsites.net/xyz/test/get

https://webapidemo1990.azurewebsites.net/xyz/test/customname

You can also verify response by calling Web API methods through postman as below:

Here, in this article, I try to explain how to deploy ASP.NET Core Web API in Azure App Service with Examples. I hope this article will help you with your need.

I would like to have your feedback. If you have any question, comments or suggestions you can comment below or can email me on my email id.

Thank you for reading this article.