65 lines
3.4 KiB
Markdown
65 lines
3.4 KiB
Markdown
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---
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title: Publish an ASP.NET Core SignalR app to Azure Web App
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author: rachelappel
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description: Publish an ASP.NET Core SignalR app to Azure Web App
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manager: wpickett
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monikerRange: '>= aspnetcore-2.1'
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ms.author: rachelap
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ms.custom: mvc
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ms.date: 04/20/2018
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ms.prod: aspnet-core
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ms.technology: aspnet
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ms.topic: article
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uid: signalr/publish-to-azure-web-app
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---
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# Publish an ASP.NET Core SignalR app to an Azure Web App
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[Azure Web App](/azure/app-service/app-service-web-overview) is a [Microsoft cloud computing](https://azure.microsoft.com/) platform service for hosting web apps, including ASP.NET Core.
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## Publish the app
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Visual Studio provides built-in tools for publishing to an Azure Web App. Visual Studio Code user can use [Azure CLI](/cli/azure) commands to publish apps to Azure. This article covers publishing using the tools in Visual Studio. To publish an app using Azure CLI, see [Publish an ASP.NET Core app to Azure with command line tools](xref:tutorials/publish-to-azure-webapp-using-cli).
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Right-click on the project in **Solution Explorer** and select **Publish**. Confirm that **Create new** is checked in the **Pick a publish target** dialog, and select **Publish**.
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Enter the following information in the **Create App Service** dialog and select **Create**.
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| Item | Description |
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| ---- | ----------- |
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| **App name** | A unique name of the app. |
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| **Subscription** | The Azure subscription that the app uses. |
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| **Resource Group** | The group of related resources to which the app belongs. |
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| **Hosting Plan** | The pricing plan for the web app. |
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Visual Studio completes the following tasks:
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* Creates a Publish Profile containing publish settings.
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* Creates or uses an existing *Azure Web App* with the provided details.
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* Publishes the app.
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* Launches a browser, with the published web app loaded.
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Notice the format of the URL for the app is *{app name}.azurewebsites.net*. For example, an app named `SignalRChattR` has a URL that looks like `https://signalrchattr.azurewebsites.net`.
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If an HTTP 502.2 error occurs, see [Deploy ASP.NET Core preview release to Azure App Service](xref:host-and-deploy/azure-apps/index?view=aspnetcore-2.1#site-x) to resolve it.
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## Configure SignalR web app
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ASP.NET Core SignalR apps that are published as an Azure Web App must have [ARR Affinity](https://en.wikipedia.org/wiki/Application_Request_Routing) enabled. [WebSockets](xref:fundamentals/websockets) should be enabled, to allow the WebSockets transport to function.
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In the Azure portal, navigate to **App Settings** for your web app. Set **WebSockets** to **On**, and verify **ARR Affinity** is **On**.
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WebSockets and other transports [are limited based on the App Service Plan](/azure/azure-subscription-service-limits#app-service-limits).
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## Related resources
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* [Publish an ASP.NET Core app to Azure with command line tools](xref:tutorials/publish-to-azure-webapp-using-cli?tabs=windows)
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* [Publish an ASP.NET Core app to Azure with Visual Studio](xref:tutorials/publish-to-azure-webapp-using-vs)
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* [Host and deploy ASP.NET Core Preview apps on Azure](xref:host-and-deploy/azure-apps/index#deploy-aspnet-core-preview-release-to-azure-app-service)
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