Angular schematic : schema

collection.json

{
  "$schema": "../node_modules/@angular-devkit/schematics/collection-schema.json",
  "schematics": {
    "scaffold-schematics": {
      "description": "A schematic to scaffold your project.",
      "factory": "./scaffold-schematics/index#scaffoldSchematics",
      "schema": "./scaffold-schematics/schema.json"
    }
  }
}

schema.d.ts

export interface ModuleOptions {
  name: string;
  path: string;
  useStore?: boolean;
}

schema.json

{
  "$schema": "http://json-schema.org/schema",
  "id": "ScaffoldNewProjectSchema",
  "title": "Creates a new project",
  "type": "object",
  "properties": {
    "name": {
      "description": "Name of the project.",
      "type": "string",
      "$default": {
        "$source": "argv",
        "index": 0
      },
      "x-prompt": "Name of the project"
    },
    "useStore": {
      "description": "NgRx Store files and configs.",
      "type": "boolean",
      "$default": {
        "$source": "argv",
        "index": 2
      },
      "x-prompt": "Do you intend to use NgRx Store"
    }
  },
  "required": [
    "name"
  ]
}