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The SDKs run in your client app. Knot doesn’t provide a server-side SDK; your backend calls the API directly over HTTPS.
SDK Updates
New versions of the SDK are released frequently, not only to add new features and address issues in the SDK, but also to continuously improve the conversion of merchant login flows. As a result, we strongly recommend that you frequently update your SDK version across any platforms where you invoke the SDK.

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Refreshing sessions

To maintain a continuous and secure connection to the SDK while a user is interacting with it, it’s important to maintain a fresh session. Sessions expire after 30 minutes. To keep a session active, call Extend Session when you receive the REFRESH_SESSION_REQUEST event in the onEvent callback. Knot sends this event 5 seconds before the session expires. As a best practice, create a new session using Create Session each time the SDK is invoked.