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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 .
author[Q & A of Denglian community],Please bring the original link to reprint, thank you.
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