wrapper for Approve - Allow

[Lomet]

Token Approval Wrapper Function

This structure can be described by two functions:

• checkApprovalStatus: Determines if approval is needed.
• executeApproval: Executes the approval process.

async function approvalWrapper(params) {
  if (checkApprovalStatus(params.checkParams)) {
    await executeApproval(params.approvalParams);
  }
}

Implementations:

ERC-20 Tokens:

• checkApprovalStatus = allowance: Checks the allowance of tokens.
• executeApproval = approve: Approves the transfer of tokens.

ERC-721 Tokens (Type 1):

• checkApprovalStatus = getApproved: Checks if a specific token is approved.
• executeApproval = approve: Approves a specific token for transfer.

ERC-721 Tokens (Type 2 - Global Approval):

• checkApprovalStatus = isApprovedForAll: Checks if an operator is approved for all tokens.
• executeApproval = setApprovalForAll: Approves an operator for all tokens.

LockDealNFT Use Case:

• checkApprovalStatus = approvedPoolUserTransfers: Checks if a user is approved for pool transfers.
• executeApproval = approvePoolTransfers: Approves a user for pool transfers.