## Validate Extraction Schema

`ExtractV2SchemaValidateResponse Extract.ValidateSchema(ExtractValidateSchemaParamsparameters, CancellationTokencancellationToken = default)`

**post** `/api/v2/extract/schema/validation`

Validate a JSON schema for extraction.

### Parameters

- `ExtractValidateSchemaParams parameters`

  - `required IReadOnlyDictionary<string, DataSchema?> dataSchema`

    JSON Schema to validate for use with extract jobs

    - `IReadOnlyDictionary<string, JsonElement>`

    - `IReadOnlyList<JsonElement>`

    - `string`

    - `Double`

    - `Boolean`

### Returns

- `class ExtractV2SchemaValidateResponse:`

  Response schema for schema validation.

  - `required IReadOnlyDictionary<string, DataSchema?> DataSchema`

    Validated JSON Schema, ready for use in extract jobs

    - `IReadOnlyDictionary<string, JsonElement>`

    - `IReadOnlyList<JsonElement>`

    - `string`

    - `Double`

    - `Boolean`

### Example

```csharp
ExtractValidateSchemaParams parameters = new()
{
    DataSchema = new Dictionary<string, DataSchema?>()
    {
        { "properties", new(
            new Dictionary<string, JsonElement>()
            {
                { "invoice_number", JsonSerializer.SerializeToElement("bar") },
                { "line_items", JsonSerializer.SerializeToElement("bar") },
                { "total_amount", JsonSerializer.SerializeToElement("bar") },
                { "vendor_name", JsonSerializer.SerializeToElement("bar") },
            }
        ) },
        { "required", new(

            [
                JsonSerializer.SerializeToElement("invoice_number"),
                JsonSerializer.SerializeToElement("total_amount"),
                JsonSerializer.SerializeToElement("vendor_name"),
            ]
        ) },
        { "type", "object" },
    },
};

var extractV2SchemaValidateResponse = await client.Extract.ValidateSchema(parameters);

Console.WriteLine(extractV2SchemaValidateResponse);
```

#### Response

```json
{
  "data_schema": {
    "foo": {
      "foo": "bar"
    }
  }
}
```