> For the complete documentation index, see [llms.txt](https://doc.twake.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.twake.app/internal-documentation/backend-services/files-service/database-models.md).

# Database models

* **files** The main file object in database

  ```javascript
    
  javascript
    {
      
      //Primary key: [["company_id"], "id"]
      "company_id": "uuid-v4",
      "id": "uuid-v4",
      "user_id": "string",
      "application_id": "string",
      "updated_at": "number", 
      "created_at":"number
        
      "upload_data": (json){
        "size": number, //Total file size
        "chunks": number, //Number of chunks
       }
      "metadata": (json){
        "name": "string", //File name
        "mime": "type/subtype",
      }
      "thumbnails": (json) {  //Url to thumbnail (or set it to undefined if no relevant)
        "index": "string",
        "id": "uuid-v4",
        "type": "string",
        "size": "number,
        "width": number, //Thumbnail width (for images only)
        "height": number, //Thumbnail height (for images only)
      }
  }

  ```