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Query erc20 authorization

2022-02-04 00:28:55 Q & A of Denglian community

Excuse me, , Call what API , In order to find ERC20 Token authorization

Take the answer 1:

adopt ERC20 Of allowance Method to query :

function allowance(address owner, address spender) external view returns (uint);

Parameters owner It's the authorized person , spender Is the authorized address .

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