How can I debug projects with this structure in VSCODE?

[adrianescat]

Hey! I have installed delve, and is running fine on my PC. I'm trying to use this config in the launch.json:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Delve",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "program": "${workspaceRoot}/cmd/web",
            "env": {},
            "args": [],
            "showLog": true
        }
    ],
}

I have the main .go files inside the cmd/web folder. The problem is that I have helpers, dbmodels, error handling inside internal. folder too.

vscode starts the app correctly, but as soon as it requires things from internal or other folders in this structure outside /cmd/web it starts getting errors. It's like the packages imports are not working correctly. If I put everything inside the /cmd/web folder I can debug and put breakpoints in the whole app

How do you debug web API's with this structure?

[kcq]

@adrianescat not an VSCode expert, but will look for a solution. if anybody wants to help that'll be cool too :)

[Challanger524]

@adrianescat, try to split debug into build+exec(tasks.json+launch.json) like here, to keep working eviroment for debugging program in project root dir.
laucn.json:

// https://code.visualstudio.com/docs/editor/debugging#_launchjson-attributes
{
  "version": "0.2.0",
  "configurations": [
    { /* Debug Exec (faster launch) + visible build output in terminal */
      "name": "Debug Exec (faster launch)",
      "type": "go",
      "request": "launch",
      "mode": "exec",
      "preLaunchTask": "build", // <-- task build dependency
      "program": "${workspaceRoot}/web",
    },
  ]
}

tasks.json:

// https://code.visualstudio.com/docs/editor/tasks
{
  "version": "2.0.0",
  "type": "shell",
  "command": "go",
  "cwd": "${workspaceFolder}", // <-- should allow resource usage (in theory)
  "problemMatcher": [ "$go" ],
  "presentation": {
    "clear": true,
    "reveal": "silent",
  },
  "tasks": [
    { /* build */
      "label": "build",
      "group": "build",
      "args": [
        "build",
        "-v", "-x", "-gcflags='all=-N -l'", "-ldflags='-extldflags=-static'",
        "-o=web",
        "./cmd/web/"
      ],
    },
  ],
}

cmd/web/main.go

package main

import (
	"fmt"
	"os"
)

func main() {
	if _, err := os.Stat("readme.md"); err == nil {    // project's root readme
		fmt.Println("File exists\n")                        // <-- works!
	} else {
		fmt.Println("File does not exist\n")
	}
}

debug console:

Starting: C:\Users\...\go\bin\dlv.exe dap --listen=127.0.0.1:60418 from C:\...\<project_dir>
DAP server listening at: 127.0.0.1:60418
Type 'dlv help' for list of commands.
File exists    <-- here we see root Readme