How to use Delve debugger in Visual Studio Code

Question

I have installed the Go extension for VS Code, but unable to make it work.

"dlv debug" works alright from the terminal.

dlv debug src/github.com/user/hello

The launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "program": "${workspaceRoot}",
            "env": {},
            "args": []
        }
    ]
}

Do you know how to set it up?

Solution 1

This launch.json worked for me to run the Golang debugger in VSCode:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Launch file",
      "type": "go",
      "request": "launch",
      "mode": "auto",
      "program": "${file}",
      "env": {
        "PATH": "/usr/local/go/bin:${fileDirname}"
      },
      "args": []
    }
  ]
}

VSCode Variables Reference: If file /home/your-username/your-project/folder/main.go is open in VSCode and

directory /home/your-username/your-project is your root workspace, then

${file} = /home/your-username/your-project/folder/main.go

${fileDirname} = /home/your-username/your-project/folder

---

My specific values:

$GOROOT: /usr/local/go

$GOPATH: /Users/myname/code

${file}: /Users/myname/code/src/github.com/githubName/appName/main.go

${fileDirname}: /Users/myname/code/src/github.com/githubName/appName

Solution 2

You have to do three things here:

• Install Delve. Looking at your question it seems that you have already installed Delve.
• Install Go extension for VS Code. The extension can be found at : https://github.com/golang/vscode-go
• Install dlv tool for Go. You can do that by opening up Command Palette (Ctrl+Shift+P / Cmd+Shift+P) and select Go: Install/Update Tools then search/select dlv

Now you can start debugging with delve in VS code.

More more detailed instruction please follow : https://dev.to/nyxtom/debugging-in-go-in-vs-code-1c7f