transferValue

blockly.xml

When
    [Case
        (Deposit
            (Role "seller")
            (Role "buyer")
            (Token "" "")
            (ConstantParam "tokenPrice")
        )
        (Pay
            (Role "seller")
            (Account (Role "goldenShoe"))
            (Token "" "")
            (ConstantParam "commission")
            (When
                [Case
                    (Deposit
                        (Role "buyer")
                        (Role "seller")
                        (Token "" "nft")
                        (Constant 1)
                    )
                    Close ]
                20 Close 
            )
        )]
    10 Close 

metadata.json

{"valueParameterDescriptions":[["commission","2% of token price"],["tokenPrice","ADA"]],"slotParameterDescriptions":[],"roleDescriptions":[["buyer","the one pays in ADA"],["goldenShoe","the one gets commission "],["seller","the one sells token"]],"contractType":"ES","contractName":"exchange","contractDescription":"","choiceDescriptions":[]}

playground.marlowe.json

{}