---
title: "Operation"
description: "Operation"
url: "https://www.contentstack.com/docs/developers/sdks/content-delivery-sdk/swift/reference/operation"
product: "Contentstack"
doc_type: "guide"
audience:
  - developers
  - admins
version: "current"
last_updated: "2026-09-13"
---

# Operation

## Operation

When fetching entries, you can search on field key paths.

[Equals Operator](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#equals-operator)

[Not-equals Operator](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#not-equals-operator)

[Includes content in array](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#array-equals-operator)

[Excludes content in array](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#array-equals-operator).

[Less Than](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#less-than).

[Less than or equal](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#less-than-or-equal-to).

[Greater Than](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#greater-than).

[Greater than or equal](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#greater-than-or-equal-to).

[The existence operator](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#exists).

[Search on a field by Regex](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#search-by-regex)

## Operation | Swift Delivery SDK | Contentstack

Operation lets you search entries on field key paths when fetching content in the Contentstack Swift Delivery SDK.