How to disable browser launch when building and running in .NET Core

Question

I'm developing a Web API with .NET Core in macOS with deployment to Linux. I have absolutely no interest in using the browser. However, when building and running from Visual Studio Code (Debug or not), the browser launches every time.

I have to close the tab, remove the browser out of the way, go to Paw, where I actually test the API, then go back to VS Code.

It's really annoying doing this every time.

Isn't there some configuration to disable browser launch?

Thanks

Answer 1

It is changed in version 0.2.0.

Just comment out the below lines.

// "serverReadyAction": {
//     "action": "openExternally",
//     "pattern": "^\\s*Now listening on:\\s+(https?://\\S+)"
// },

Answer 2

Short Answer

Open the .vscode/launch.json file and disable launchBrowser.

More Details

1. dotnet new webapi
2. Open VS Code.
3. Add required assets to build and debug.

At this point, there is a .vscode directory that contains a launch.json file. Open that file and disable or delete the following.

"launchBrowser": {
    "enabled": true,
    "args": "${auto-detect-url}",
    "windows": {
        "command": "cmd.exe",
        "args": "/C start ${auto-detect-url}"
    },
    "osx": {
        "command": "open"
    },
    "linux": {
       "command": "xdg-open"
    }
},

See also: https://code.visualstudio.com/docs/editor/debugging#_launch-configurations

Answer 3

Just to add, it works for Visual Studio 2017 as well (Not only VS Code). The file is called launchSettings.json, and is located inside the Properties folder of the project.

Answer 4

Short Answer

Open the Properties/launchSettings.json file and set "launchBrowser": false. It works for Visual Studio 2019.

More Details

1. Go to the project location
2. Open the Properties/launchSettings.json
3. Set "launchBrowser": false

"profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": false,
      "launchUrl": "weatherforecast",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "MyApi": {
      "commandName": "Project",
      "launchBrowser": false,
      "launchUrl": "weatherforecast",
      "applicationUrl": "https://localhost:5001;http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }