---
title: "RequiredFields"
slug: "requiredfields"
updated: 2026-06-17T18:12:58Z
published: 2026-06-17T18:12:58Z
canonical: "docs.datajet.app/requiredfields"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.datajet.app/llms.txt
> Use this file to discover all available pages before exploring further.

# RequiredFields

Validates that the specified fields are present, failing the script if any are missing.

The method accepts two forms.

## Form 1 — explicit field list

| Key | Value(s) | Description |
| --- | --- | --- |
| method | `"RequiredFields"` | Checks that the listed fields are present. |
| fields | array | Fully qualified fields that must exist, e.g. `table.field1`. |
| project | `"MyProject"` | Name of the project. |

```json
{
  "method": "RequiredFields",
  "fields": ["table.field1", "table.field2", "table.field3", "table.field4"],
  "project": "MyProject"
}
```

## Form 2 — from an export template

| Key | Value(s) | Description |
| --- | --- | --- |
| method | `"RequiredFields"` | Checks the fields required by an export template. |
| exportTemplate | `"templateName"` | Export template whose fields must be present. `[CONFIRM]` |
| table | `"tableName"` | Table to check against. `[CONFIRM]` |
| project | `"MyProject"` | Name of the project. |

```json
{
  "method": "RequiredFields",
  "exportTemplate": "templateName",
  "table": "tableName",
  "project": "MyProject"
}
```