Custom properties

This topic explains how to set up and use custom properties in LaunchDarkly. If you’re building an integration for LaunchDarkly, it might be helpful to store data for your integration with a LaunchDarkly feature flag. Custom properties allow you to do this. Each custom property you add to a feature flag can contain a list of associated values. For example, if you create an integration with an issue tracking service, you may want to associate a flag with a list of issues related to a feature’s development.

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Create a custom property type

Before you create a custom property type, you must first choose the flag you plan to add it to. To create a custom property type:

1. In the left sidebar, click Code. The CodeControl menu appears.
2. Click Flags.
3. Open the flag you wish to deprecate.
4. Click the three-dot overflow menu in the right sidebar.
5. Select Add custom property.
6. Enter the new property type name in the Type field.
7. (Optional) Edit the Key if needed.
8. Enter the Values associated with the custom property.
9. Click Save.

After you create a custom property, it appears in the right sidebar, under the “Links” section.

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Add a custom property

To add an existing custom property to a flag:

1. In the left sidebar, click Code. The CodeControl menu appears.
2. Click Flags.
3. Open the flag you wish to add a custom property to.
4. Click the three-dot overflow menu in the right sidebar.
5. Select Add custom property.
6. Select a property Type from the menu.
7. Enter the Values associated with the property.
8. Click Save.