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Finish initialization before using assignments

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Eppo's SDK initialization is non-blocking by default. This means your application can continue running while the SDK initializes in the background. However, if you call get<Type>Assignment before initialization completes, you may get unexpected results due to race conditions.

What Happens If You Don't Wait​

When you call get<Type>Assignment before initialization completes, one of two things will happen:

  1. If the SDK has a cached configuration in persistent storage (like localStorage in JavaScript):

    • It will use the previous configuration
    • This might not include your latest changes

  2. If there's no cached configuration:

    • The SDK will return your specified default value
    • Your feature flags won't work as expected

Best Practice​

Take advantage of your programming language's tools for waiting for asynchronous operations to complete. For example, the await keyword in JavaScript can be used to wait for an async operation to complete.

tip

Check your specific SDK's documentation for initialization options and best practices for your programming language.