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checkIfCustomerExists

Search a Customer by customer properties

This method allows checking if a Customer with certain attributes (e.g. email or phone number) already exists in the Cloud4Wi account.
/**
* Check if customer with provided via CustomerQuery properties already exists
*
* @param query - <CustomerQuery> object with at least one field initialized
* @param onSuccess - invoked if `customer exists` call was proceeded without exceptions
* @param onError - invoked if exception occurred
* @return future with boolean result of `customer exists` result
*/
public Future<Boolean> checkIfCustomerExists(CustomerQuery query, Callback<Boolean> onSuccess, Callback<MobileSDKException> onError);