About the project

This project starts when I realized while doing an implementation with the ERC1155 standard that the ERC1155 approval was made for all tokens (setApprovalForAll(address operator, bool approved)) regardless of quantities or/and ids.

All the specification can be found here.

ivanmmurciaua is not liable for any outcomes as a result of using ERC5216 extension. DYOR.

ERC-5216

Usage

// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.21;

import "./ERC5216.sol";

contract ExampleToken is ERC5216 { ... }

Functions

Name	Params	Description
approve	address operator, uint256 id, uint256 amount	Grants permission to operator to transfer caller's tokens according to id and with a limit amount
allowance	address account, address operator, uint256 id	Returns the amount for operator approved to transfer account's tokens according to id

safeTransferFrom & safeBatchTransferFrom are override from ERC1155 and implemented here.

Tests

ERC5216
  approve
    ✔ Approve id 0 for U1 with an amount of 10
    ✔ Should revert when owner try to approve himself
  safeTransferFrom
    ✔ Should revert when caller isn't the from param
    ✔ Should revert when id to transfer is not approved and caller != from
    ✔ Transfer 10 1155-0 to U2 by owner
    ✔ Transfer 10 1155-0 to U1 call by himself (59ms)
    ✔ Should revert when U1 try to transfer 1 1155-0 to himself with allowance actual in 0
  safeBatchTransferFrom
    ✔ Approve id 1 for U1 with an amount of 10
    ✔ Should be reverted because Id 0 is not approved for U1
    ✔ Transfer 10 of 0 and 1 from owner to U2 (43ms)
    ✔ Approve for Id 0 and transfer 10 of 0 and 1 to U1 (117ms)


12 passing (2s)

TODO

• Testing
• Post in OZ Forum
• Post in FEM
• Discuss
  • Remove redundant ById version
  • Fit to ERC-20 API
  • Remove safe(Batch)TransferFromByAmount functions and override from ERC1155
  • Change ApprovalById with Allowance for less verbose ERC
  • Make PR into EIP & ERC official repository
• Be a real extension approved by the community