Called when we begin to fetch metadata for the current rawData. Changing rawData triggers this callback.
Some time after this is called, primerRawDataManager(_:didReceiveMetadata:forState:) will be called with the relevant metadata for the state.Use this method to indicate to the user that metadata is being fetched; for example, by showing a loading spinner or other UI until the metadata has been returned.
An object containing the state that triggered the metadata fetch. For example, for
card number entry, this will be an instance of PrimerCardNumberEntryState
Called when new validation metadata relating to the current validation state is received. This will always be
called some time after primerRawDataManager(_:willFetchMetadataForState:) is called.Use this method to query new validation metadata, add informational UI, or allow the user to add
additional payment information required to make a payment.
An object containing the state that triggered the metadata fetch. For example, for
card number entry, this will be an instance of PrimerCardNumberEntryState
Card networks for the given card number that can be selected by the user
prior to payment. This will be null in the case that a network is
co-badged, or we are unable to remotely validate the given card number.
This method is deprecated. Please use primerRawDataManager(_:willFetchMetadataForState:) and
primerRawDataManager(_:didReceiveMetadata:forState:).
Returns validation metadata for the current validation state, triggered by using rawData. Check the section below for the metadata types that can be returned.