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when calling transfer method, how to call hook method on received smart contract. I'm using fa2 in smartpy

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  • What is your scenario, are you calling from another contract or from an app? – FFF Aug 28 '20 at 9:51
  • when contract received the token, I want to recording in contract. 'when' 'who' 'how much' . so I need hook function like ERC777TokensRecipient And The tokensReceived Hook on ethereum – MS.J Aug 31 '20 at 0:32
  • Receiver hooks in FA2 are optional. If the particular implementation of the FA2 supports receiver hooks, you receiver contract may implement tokens_received entry point. See FA2 token owner hook and some example implementation. However due to inter-contract calls gas costs, most of the existing FA2 implementations choose not to support sender/receiver hooks – Eugene Mishura Sep 1 '20 at 17:16

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