.vscode/tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "npm",
            "script": "build",
            "group": "build",
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "problemMatcher": [],
            "label": "Backend:rebuild",
            "detail": "Backend:rebuild"
        },
        {
            "type": "typescript",
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "tsconfig": "tsconfig.json",
            "option": "watch",
            "isBackground": true,
            "problemMatcher": [
                "$tsc-watch"
            ],
            "group": "build",
            "label": "Backend:build:watch"
        }
    ]
}