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61 lines
2.9 KiB
Markdown
61 lines
2.9 KiB
Markdown
---
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title: Dependent Features
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---
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:::info Availability
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**Dependent features** were first introduced in Unleash 5.7 for Pro and Enterprise users.
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:::
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## Overview
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Dependent features allow to define a child feature flag that depends on a parent feature flag.
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A feature flag can have only one parent dependency but multiple child flags can share the same parent. For a child flag to be activated, its parent dependency must be enabled.
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## Parent dependency criteria
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* **Project Association**: Both parent and child flags should belong to the same project.
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* **Single Level Dependency**: The parent flag can’t have its own parent, ensuring a straightforward, single-level dependency.
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## Managing dependencies
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### Adding
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Introduce dependencies either through the UI or API, also applicable when copying a child feature with an existing parent dependency.
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### Removing
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Eliminate them through the UI or API. Dependencies are also removed when archiving a child feature. A parent feature can’t be removed if it would leave a child feature orphaned. To remove both, batch archive them. If Unleash confirms no other child features are using the parent, archiving proceeds.
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## Permissions
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The **Update feature dependency** project permission, auto-assigned to admin and project members, allows managing dependencies.
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## Metrics calculation
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Metrics are influenced solely by the evaluation of child features.
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## Client SDK Support {#client-sdk-support}
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To make use of dependent feature, you need to use a compatible client. Client SDK with variant support:
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- [unleash-client-node](https://github.com/Unleash/unleash-client-node) (from v4.2.0)
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- [unleash-client-java](https://github.com/Unleash/unleash-client-java) (from v8.4.0)
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- [unleash-client-go](https://github.com/Unleash/unleash-client-go) (from v3.9.2)
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- [unleash-client-python](https://github.com/Unleash/unleash-client-python) (from v5.9.0)
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- [unleash-client-ruby](https://github.com/Unleash/unleash-client-ruby) (from v4.6.0)
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- [unleash-client-dotnet](https://github.com/Unleash/unleash-client-dotnet) (from v3.4.0)
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- [unleash-client-php](https://github.com/Unleash/unleash-client-php) (from v2.2.0)
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- Client SDKs talking to [unleash-proxy](https://github.com/Unleash/unleash-proxy) (from v0.18.0)
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- Client SDKs talking to [unleash-edge](https://github.com/Unleash/unleash-edge) (from v13.1.0)
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- Client SDKs talking to Frontend API in [unleash-server](https://github.com/Unleash/unleash) (from v5.7.0)
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- Unleash Playground in [unleash-server](https://github.com/Unleash/unleash) (from v5.7.0)
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If you would like to give feedback on this feature, experience issues or have questions, please feel free to open an issue on [GitHub](https://github.com/Unleash/unleash/).
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