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You can define feature variables to remotely update your feature flags’ content in your chosen environment. A feature variable defines a single piece of content, such as a discount percentage or a button color, that you can update without redeploying code. A feature variation is a named combination of variable values that Kameleoon serves to a specific group of users. You must create feature variables to create feature variations. There is no limit on the number of feature variables you can create.

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Creating feature variables

  1. Navigate to your feature flag or create a new one.
  2. In the left sidebar, click Set Up > Variables > Add Variable.
  3. Select your variable’s Type.
    • If you select Enum, enter a list of allowed values separated by commas. This type creates a predefined list of options that you can select from when you define feature variations, rather than typing values manually.
  4. Enter a Variable Key.
  5. Set the Default Value.
    • For Enum variables, select the default value from the list you defined in step 3.
  6. Click Save.
To retrieve a feature variable from your source code, you must call the getVariation() method. If you use feature variations, Kameleoon automatically buckets the user in a variation and returns the value that variation defines for the variable, so you don’t need to call the getVariation() method in that case.

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Benefits of feature variables

Feature variables let you variabilize parts of your feature flag code, so you can dynamically assign values to variables without coding them in your source code. Once the feature variable’s code is in production, changing it doesn’t require redeployment. For example, if your feature is a discount offer for premium customers, but you’re not sure what the discount percentage will be, you can create a Discount Percentage variable in your code and update it from the Kameleoon app without changing or pushing new code. Developers and product owners can work together to variablize parts of your feature that might change, so product updates aren’t blocked by development and deployments. Choose your SDK language and use the sample code provided to set up the SDK in your app in any of the following languages: