Adds a card on file to an existing merchant.
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Payment details associated with the card to be stored.
A unique string that identifies this CreateCard request. Keys can be any valid string and must be unique for every request.
Max: 45 characters
See Idempotency keys for more information.
A string that contains no characters. In an API request this value will appear as ''. Can be used to remove a field’s value.
''
The ID of the source which represents the card information to be stored. This can be a card nonce or a payment id.
An identifying token generated by Payments.verifyBuyer(). Verification tokens encapsulate customer device information and 3-D Secure challenge results to indicate that Square has verified the buyer identity.
See the SCA Overview.
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