Withdraw function issue USDT?

Smart Contracts
8

With regards to the SafeERC20 library, see my answer to a different question.

Other than that, the rules of engaging with an ERC20-Token contract are pretty simple:

  1. An entity can transfer its own tokens using function transfer (or safeTransfer)
  2. An entity can transfer the tokens of another entity using function transferFrom (or safeTransferFrom), but only after the latter has approved the former to do so, using function approve (or safeApprove)

An entity can be either one of the following:

  • An EOA (externally-owned account, aka wallet)
  • An SCA (smart-contract account, aka contract)

Every entity is associated with an Ethereum address of course.