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## Resource: About Field Projection

## Article: About Field Projection

## Article Link: https://dev.wix.com/docs/api-reference/articles/work-with-wix-apis/data-retrieval/about-field-projection.md

## Article Content:

# About Field Projection

Some methods support field projection, which allows you to control which fields the method returns.

## Field projection

Specify a predefined enumeration in the `fields` parameter to indicate the fields you want a method to return. The enumerations may be either:

- Named sets of fields for common use cases.
- Individual field names.

In some cases, specific `fields` values may be protected by additional permissions.

## Legacy field projection

Legacy APIs offer `fieldsets` and `fields` to manage returned fields:

- **Fieldsets** are predefined and named sets of fields. Fieldsets cover common use cases. The default fieldset is typically the full object, although some methods may specify a different default fieldset. See each method's documentation for specific details.

- **Fields** allow you to supply a list of individual field names to return.

If you specify fieldsets and projected fields together in a request, the union of all included fields is returned. For example, if you specify the `BASIC` fieldset and the `info.birthdate` field, all fields included in the `BASIC` fieldset and `info.birthdate` are returned.

If neither fieldsets nor projected fields are specified, the default fieldset is returned.