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Questions about approve and transferfrom, thank you!

2022-02-03 23:54:14 Q & A of Denglian community

For example, if a user needs to give a contract A turn USDT, You need to call... At the front end first usdt The contract approve, And then again transferFrom, To put USDT Transfer to contract A Do you ? If so , The user is not going to DAPP Enter the password twice and operate twice , Can turn USDT Give me the contract ? Is there a simpler way ? thank you !

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