def validate_transfer()

in service/sdk_validator/resdb_validator/transaction.py [0:0]

• 20 lines of code
• 9 McCabe index (conditional complexity)

    def validate_transfer(cls, inputs, recipients, asset_id, metadata):
        if not isinstance(inputs, list):
            raise TypeError('`inputs` must be a list instance')
        if len(inputs) == 0:
            raise ValueError('`inputs` must contain at least one item')
        if not isinstance(recipients, list):
            raise TypeError('`recipients` must be a list instance')
        if len(recipients) == 0:
            raise ValueError('`recipients` list cannot be empty')

        outputs = []
        for recipient in recipients:
            if not isinstance(recipient, tuple) or len(recipient) != 2:
                raise ValueError(('Each `recipient` in the list must be a'
                                  ' tuple of `([<list of public keys>],'
                                  ' <amount>)`'))
            pub_keys, amount = recipient
            outputs.append(Output.generate(pub_keys, amount))

        if not isinstance(asset_id, str):
            raise TypeError('`asset_id` must be a string')

        return (deepcopy(inputs), outputs)