What Is the Transferfrom() Function and How Does It Relate to Approve() ? ▴ Learn

What Is the Transferfrom() Function and How Does It Relate to Approve() ?

The transferFrom() function is the counterpart to approve(). After a user has called approve() to grant an allowance, the spender (the dApp's smart contract) can then call transferFrom() on the token contract.

This function instructs the token contract to move a specified number of tokens from the user's address to a recipient's address. The token contract first checks if the spender has a sufficient allowance from the user before executing the transfer.

What Are the Security Risks Associated with Setting an Unlimited Token Allowance?

What Are the Trust Assumptions a User Makes When Approving a DEX’s Router Contract?

How Does a Token Allowance Differ from a Direct Token Transfer in a DeFi Transaction?

Why Is a Two-Step Approve and Transferfrom Process Often Cheaper in the Long Run for Frequent Interactions?