113 lines
3.1 KiB
Markdown
113 lines
3.1 KiB
Markdown
---
|
|
title: Get started with ASP.NET Core
|
|
author: rick-anderson
|
|
description: A short tutorial that creates and runs a basic Hello World app using ASP.NET Core.
|
|
ms.author: riande
|
|
ms.custom: mvc
|
|
ms.date: 01/07/2020
|
|
no-loc: [Home, Privacy, Kestrel, appsettings.json, "ASP.NET Core Identity", cookie, Cookie, Blazor, "Blazor Server", "Blazor WebAssembly", "Identity", "Let's Encrypt", Razor, SignalR]
|
|
uid: getting-started
|
|
---
|
|
# Tutorial: Get started with ASP.NET Core
|
|
|
|
This tutorial shows how to create and run an ASP.NET Core web app using the .NET Core CLI.
|
|
|
|
You'll learn how to:
|
|
|
|
> [!div class="checklist"]
|
|
> * Create a web app project.
|
|
> * Trust the development certificate.
|
|
> * Run the app.
|
|
> * Edit a Razor page.
|
|
|
|
At the end, you'll have a working web app running on your local machine.
|
|
|
|
|
|
|
|
## Prerequisites
|
|
|
|
[!INCLUDE[](~/includes/3.1-SDK.md)]
|
|
|
|
## Create a web app project
|
|
|
|
Open a command shell, and enter the following command:
|
|
|
|
```dotnetcli
|
|
dotnet new webapp -o aspnetcoreapp
|
|
```
|
|
|
|
The preceding command:
|
|
|
|
* Creates a new web app.
|
|
* The `-o aspnetcoreapp` parameter creates a directory named *aspnetcoreapp* with the source files for the app.
|
|
|
|
### Trust the development certificate
|
|
|
|
Trust the HTTPS development certificate:
|
|
|
|
# [Windows](#tab/windows)
|
|
|
|
```dotnetcli
|
|
dotnet dev-certs https --trust
|
|
```
|
|
|
|
The preceding command displays the following dialog:
|
|
|
|
|
|
|
|
Select **Yes** if you agree to trust the development certificate.
|
|
|
|
# [macOS](#tab/macos)
|
|
|
|
```dotnetcli
|
|
dotnet dev-certs https --trust
|
|
```
|
|
|
|
The preceding command displays the following message:
|
|
|
|
*Trusting the HTTPS development certificate was requested. If the certificate is not already trusted, we will run the following command:* `'sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain <<certificate>>'`
|
|
|
|
This command might prompt you for your password to install the certificate on the system keychain. Enter your password if you agree to trust the development certificate.
|
|
|
|
# [Linux](#tab/linux)
|
|
|
|
See the documentation for your Linux distribution on how to trust the HTTPS development certificate.
|
|
|
|
---
|
|
|
|
For more information, see [Trust the ASP.NET Core HTTPS development certificate](xref:security/enforcing-ssl#trust-the-aspnet-core-https-development-certificate-on-windows-and-macos)
|
|
|
|
## Run the app
|
|
|
|
Run the following commands:
|
|
|
|
```dotnetcli
|
|
cd aspnetcoreapp
|
|
dotnet watch run
|
|
```
|
|
|
|
After the command shell indicates that the app has started, browse to `https://localhost:5001`.
|
|
|
|
## Edit a Razor page
|
|
|
|
Open *Pages/Index.cshtml* and modify and save the page with the following highlighted markup:
|
|
|
|
[!code-cshtml[](sample/index.cshtml?highlight=9)]
|
|
|
|
Browse to `https://localhost:5001`, refresh the page, and verify the changes are displayed.
|
|
|
|
## Next steps
|
|
|
|
In this tutorial, you learned how to:
|
|
|
|
> [!div class="checklist"]
|
|
> * Create a web app project.
|
|
> * Trust the development certificate.
|
|
> * Run the project.
|
|
> * Make a change.
|
|
|
|
To learn more about ASP.NET Core, see the recommended learning path in the introduction:
|
|
|
|
> [!div class="nextstepaction"]
|
|
> <xref:index#recommended-learning-path>
|