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# Resource: Items

# Type: WixDataAggregatePipelineExpressions

# Action: field

# Link: https://dev.wix.com/docs/sdk/data-items-sdk/data/items/wix-data-aggregate-pipeline-expressions/field.md

## Description: Specifies which field to resolve.

The `field()` method configures the aggregation pipeline to resolve the value of the specified field as an expression.

## Schema:

```json
 Method: field(fieldPath)
 Description: Specifies which field to resolve.  The `field()` method configures the aggregation pipeline to resolve the value of the specified field as an expression.
 Method parameters:
   param name:  fieldPath | type: string | description:  Path to the field containing the value to resolve. Use dot notation to specify nested fields. For example, `user.name` or `product.price`. 
 Return type: REFERENCE<FieldExpression>

```