scriptform/examples/tutorial/tutorial_validate.json

{
  "title": "Tutorial step 4: Uploads",
  "forms": [
    {
      "name": "hello_world",
      "title": "Hello, world!",
      "description": "Greetings",
      "script": "job_upload.sh",
      "fields": [
        {
          "name": "name",
          "title": "Name",
          "type": "string",
          "minlen": 2,
          "maxlen": 10
        },
        {
          "name": "upload",
          "title": "Upload a file",
          "type": "file",
          "required": true,
          "extensions": ["txt"]
        }
      ]
    }
  ]
}