Add a product to a relation

A valid request URL is required to generate request examples

{
  "data": {
    "direction": "<string>",
    "id": "<string>",
    "primary_product_id": "<string>",
    "products": [
      {
        "description": "<string>",
        "id": "<string>",
        "image_url": "<string>",
        "product_name": "<string>",
        "product_number": "<string>",
        "slug": "<string>"
      }
    ],
    "title": "<string>",
    "type": "<string>",
    "type_id": "<string>"
  },
  "details": [
    "<string>"
  ],
  "success": true
}

{
  "details": [
    "<string>"
  ],
  "message": "<string>",
  "success": true
}

{
  "details": [
    "<string>"
  ],
  "message": "<string>",
  "success": true
}

{
  "details": [
    "<string>"
  ],
  "message": "<string>",
  "success": true
}

{
  "details": [
    "<string>"
  ],
  "message": "<string>",
  "success": true
}