βοΈWhat is approve?
Authorization(approval)is the contract interaction behavior of tokens on the blockchain chain.
It refers to granting an account to another account (personal or contract account) to transfer the corresponding token assets without obtaining a second permission.
In the case of DeFi's Swap interaction, mortgage, loan, mining, DEX NFT purchase, etc., it is necessary to conduct on-chain contract interaction, and at this time, it is necessary to authorize the account.
*Authorization(approval) is an operation with certain security risks, please identify the project carefully. Security reference information: Whether it is open source, whether there is an audit report, and the team background and other factors.
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