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Here, you will learn how to create a Node.js web application using Visual Studio.
First of all, You must install Node.js development workload for Visual Studio. If you need to install the workload but already have Visual Studio, go to Tools > Get Tools and Features..., which opens the Visual Studio Installer. Choose the Node.js development workload, then choose Modify.
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Create a new project by clicking on New Project.. on the start page or FILE menu. This will open a New Project dialog box as shown below.
As shown in the above figure, from the New Project dialog box, expand Installed -> Templates -> JavaScript -> Node.js in the left pane. Select the Blank Node.js Web Application in the centre pane, enter a project name and a location and click OK. This will create a Node.js web application project as shown below.
Update Node Js Visual Studio 2019
As you can see, it has created server.js, which creates a web server listening on the 1337 port and sends the 'Hello World' text as a response to any http request.
Press F5 to run the web project. It will open the command prompt and the browser, as shown below.
So now, you can send different responses based on the requested URLs the same way as shown in the Node.js web server section.
-->In this 5-10 minute introduction to the Visual Studio integrated development environment (IDE), you'll create a simple Node.js web application.
Prerequisites
Node Js And Visual Studio 2019
- You must have Visual Studio installed and the Node.js development workload.If you haven't already installed Visual Studio 2019, go to the Visual Studio downloads page to install it for free.If you haven't already installed Visual Studio 2017, go to the Visual Studio downloads page to install it for free.If you need to install the workload but already have Visual Studio, go to Tools > Get Tools and Features..., which opens the Visual Studio Installer. Choose the Node.js development workload, then choose Modify.
- You must have the Node.js runtime installed.If you don't have it installed, we recommend you install the LTS version from the Node.js website for best compatibility with outside frameworks and libraries. Node.js is built for 32-bit and 64-bit architectures. The Node.js tools in Visual Studio, included in the Node.js workload, support both versions. Only one is required and the Node.js installer only supports one being installed at a time.In general, Visual Studio automatically detects the installed Node.js runtime. If it does not detect an installed runtime, you can configure your project to reference the installed runtime in the properties page (after you create a project, right-click the project node, choose Properties, and set the Node.exe path). You can use a global installation of Node.js or you can specify the path to a local interpreter in each of your Node.js projects.
Create a project
Add Node Js Visual Studio 2019
First, you'll create an Node.js web application project.
- If you don't have the Node.js runtime already installed, install the LTS version from the Node.js website.For more information, see the prerequisites.
- Open Visual Studio.
- Create a new project.Press Esc to close the start window. Type Ctrl + Q to open the search box, type Node.js, then choose Create new Blank Node.js Web application project (JavaScript). In the dialog box that appears, choose Create.From the top menu bar, choose File > New > Project. In the left pane of the New Project dialog box, expand JavaScript, then choose Node.js. In the middle pane, choose Blank Node.js Web application, then choose OK.If you don't see the Blank Node.js Web application project template, you must add the Node.js development workload. For detailed instructions, see the Prerequisites.Visual Studio creates and the new solution and opens the project. server.js opens in the editor in the left pane.
Explore the IDE
![Node Js Visual Studio 2019 Node Js Visual Studio 2019](/uploads/1/3/5/1/135123764/915112794.jpg)
- Take a look at Solution Explorer in the right pane.
- Highlighted in bold is your project, using the name you gave in the New Project dialog box. On disk, this project is represented by a .njsproj file in your project folder.
- At the top level is a solution, which by default has the same name as your project. A solution, represented by a .sln file on disk, is a container for one or more related projects.
- The npm node shows any installed npm packages. You can right-click the npm node to search for and install npm packages using a dialog box.
- If you want to install npm packages or Node.js commands from a command prompt, right-click the project node and choose Open Command Prompt Here.
- In the server.js file in the editor (left pane), choose
http.createServer
and then press F12 or choose Go To Definition from the context (right-click) menu. This command takes you to the definition of thecreateServer
function in index.d.ts. - Got back to server.js, then put your cursor at the end of the string in this line of code,
res.end('Hello Worldn');
, and modify it so that it looks like this:res.end('Hello Worldn' + res.connection.
Where you typeconnection.
, IntelliSense provides options to auto-complete the code entry. - Choose localPort, and then type
);
to complete the statement so that it looks like this:res.end('Hello Worldn' + res.connection.localPort);
Run the application
- Press Ctrl+F5 (or Debug > Start Without Debugging) to run the application. The app opens in a browser.
- In the browser window, you will see 'Hello World' plus the local port number.
- Close the web browser.
Congratulations on completing this Quickstart in which you got started with the Visual Studio IDE and Node.js. If you'd like to delve deeper into its capabilities, continue with a tutorial in the Tutorials section of the table of contents.