Releases: badbabybearbots/ERC721B
0.2.1
What's Changed
Introducing Extensions. These can be found in the extensions folder.
ERC721BBaseTokenURI
Use this extension if you want token URIs to be determined with a base URI.
You need to manually call _setBaseURI(string memory) in your constructor
or in another function.
ERC721BBurnable
Use this extension if you want your tokens to be burnable. By default
it is not.
ERC721BContractURIStorage
Use this extension if you want your contract have an associated URI.
Marketplaces like OpenSea accept this. You need to manually call
_setContractURI(string memory) in your constructor or in another
function.
ERC721BPausable
Use this extension if you want manually pause minting and transferring.
You need to manually call _pause() and _unpause() in another function.
ERC721BSignedTransfer
Use this extension if you want want a cheaper way to approve transfers.
signedTransferFrom() is similar to safeTransferFrom() except it
accepts a signed message from the owner as authorization.
ERC721BStaticTokenURI
Use this extension if you want to assign static URIs to a token.
ERC721Metadata
Use this extension if you want to assign store the name and symbol in
your contract. We separated this out because it's cheaper to use a pure
function like function name() pure view returns(string memory).
Still the cheapest ERC721 standard without compromise.
·------------------|------------------|------------------|------------------·
| · ERC721 · ERC721A · ERC721B |
...................|..................|..................|...................
| Deploy | 1,207,378 | 1,098,237 | 1,074,533 |
...................|..................|..................|...................
| Mint 1 | 56,842 | 56,593 | 56,560 |
...................|..................|..................|...................
| Mint 2 | 82,424 | 58,590 | 58,557 |
...................|..................|..................|...................
| Mint 3 | 108,006 | 60,587 | 60,554 |
...................|..................|..................|...................
| Mint 4 | 133,588 | 62,584 | 62,551 |
...................|..................|..................|...................
| Mint 5 | 159,170 | 64,581 | 64,548 |
...................|..................|..................|...................
| Transfer | 62,491 | 66,342 | 66,226 |
...................|..................|..................|...................
| Burn | 19,611 | 65,419 | 57,501 |
·------------------|------------------|------------------|------------------·
- version bump by @cblanquera in #3
- more optimizations, intro signed transfers by @cblanquera in #6
Full Changelog: 0.2.0...0.2.1
Contributors
Assets 2
0.2.0
What's Changed
- 0.2 by @cblanquera in #2
New Contributors
- @cblanquera made their first contribution in #2
Full Changelog: 0.1.5...0.2.0
Contributors
Assets 2
Provenance Preset
Added a preset for NFT collections that can be used like this.
import "erc721b/contracts/presets/ERC721BPresetProvenance.sol";
contract ERC721BMockProvenance is ERC721BPresetProvenance {
uint256 constant public SALE_PRICE = 0.08 ether;
uint64 constant public SALE_START_DATE = 1893456000;
uint8 constant public SALE_MAX_PURCHASE = 1;
uint256 constant public WHITELIST_PRICE = 0.08 ether;
uint64 constant public WHITELIST_START_DATE = 1924992000;
uint8 constant public WHITELIST_MAX_PURCHASE = 5;
constructor(string memory uri, string memory cid) ERC721BPresetProvenance(
// name
"MyCollection",
// symbol
"MYC",
// base URI
uri,
// provenance hash
cid,
//MAX_SUPPLY
10000,
//white list info
WHITELIST_PRICE,
WHITELIST_START_DATE,
WHITELIST_MAX_PURCHASE,
//sale info
SALE_PRICE,
SALE_START_DATE,
SALE_MAX_PURCHASE
) {}
}ERC721B now cheaper to deploy.
·------------------|------------------|------------------|------------------· | · ERC721 · ERC721A · ERC721B | ...................|..................|..................|................... | Deploy | 1,208,218 | 1,210,541 | 1,054,413 | ...................|..................|..................|................... | Mint 1 | 56,842 | 56,890 | 56,578 | ...................|..................|..................|................... | Mint 2 | 82,424 | 59,149 | 58,595 | ...................|..................|..................|................... | Mint 3 | 108,006 | 61,408 | 60,612 | ...................|..................|..................|................... | Mint 4 | 133,588 | 63,667 | 62,629 | ...................|..................|..................|................... | Mint 5 | 159,170 | 65,926 | 64,646 | ...................|..................|..................|................... | Transfer | 62,491 | 66,389 | 66,193 | ...................|..................|..................|................... | Burn | 19,611 | 47,380 | 57,262 | ·------------------|------------------|------------------|------------------·
The following example is an example cost conversion from the gas above
in USD.
·------------------|------------------|------------------|------------------· | · ERC721 · ERC721A · ERC721B | ...................|..................|..................|................... | Deploy | $ 1,087.39 | $ 1,089.48 | $ 948.97 | ...................|..................|..................|................... | Mint 1 | $ 51.15 | $ 51.20 | $ 50.92 | ...................|..................|..................|................... | Mint 2 | $ 74.18 | $ 53.23 | $ 52.73 | ...................|..................|..................|................... | Mint 3 | $ 97.20 | $ 55.26 | $ 54.55 | ...................|..................|..................|................... | Mint 4 | $ 120.22 | $ 57.30 | $ 56.36 | ...................|..................|..................|................... | Mint 5 | $ 143.25 | $ 59.33 | $ 58.18 | ...................|..................|..................|................... | Transfer | $ 56.24 | $ 59.75 | $ 59.57 | ...................|..................|..................|................... | Burn | $ 17.64 | $ 42.64 | $ 51.53 | ·------------------|------------------|------------------|------------------·
Everything Even More Affordable
New gas comparison. Please note we adjusted the gas limit from 200 to 50 gwei.
·------------------|------------------|------------------|------------------· | · ERC721 · ERC721A · ERC721B | ...................|..................|..................|................... | Deploy | 1,208,218 | 1,210,541 | 1,093,716 | ...................|..................|..................|................... | Mint 1 | 56,842 | 56,890 | 56,607 | ...................|..................|..................|................... | Mint 2 | 82,424 | 59,149 | 58,624 | ...................|..................|..................|................... | Mint 3 | 108,006 | 61,408 | 60,641 | ...................|..................|..................|................... | Mint 4 | 133,588 | 63,667 | 62,658 | ...................|..................|..................|................... | Mint 5 | 159,170 | 65,926 | 64,675 | ...................|..................|..................|................... | Transfer | 62,491 | 66,389 | 66,420 | ...................|..................|..................|................... | Burn | 19,611 | 47,380 | 28,180 | ·------------------|------------------|------------------|------------------·
The following example is an example cost conversion from the gas above in USD. ($3,000.00 / ETH)
·------------------|------------------|------------------|------------------· | · ERC721 · ERC721A · ERC721B | ...................|..................|..................|................... | Deploy | $ 1,087.39 | $ 1,089.48 | $ 984.34 | ...................|..................|..................|................... | Mint 1 | $ 51.15 | $ 51.20 | $ 50.94 | ...................|..................|..................|................... | Mint 2 | $ 74.18 | $ 53.23 | $ 52.76 | ...................|..................|..................|................... | Mint 3 | $ 97.20 | $ 55.26 | $ 54.57 | ...................|..................|..................|................... | Mint 4 | $ 120.22 | $ 57.30 | $ 56.39 | ...................|..................|..................|................... | Mint 5 | $ 143.25 | $ 59.33 | $ 58.20 | ...................|..................|..................|................... | Transfer | $ 56.24 | $ 59.75 | $ 59.77 | ...................|..................|..................|................... | Burn | $ 17.64 | $ 42.64 | $ 25.36 | ·------------------|------------------|------------------|------------------·
adding lastTokenId
0.1.3 updating repo references
First release tag
Gas prices on Ethereum have been consistently high for months, and the dev community needs to adapt. When popular NFT projects begin to mint, gas prices spike up, resulting in the entire ecosystem paying millions in gas fees to transact. The focus for the dev team has been to optimize our contract and enable our community to spend as little as possible in gas fees when minting.
The controversy ERC721A has certainly peeked interest in the community for achieving low mint costs for all, but had to sacrifice functionality and to increase gas costs in other places to do so.
We used OpenZeppelin's ERC721 as the base and implemented the intent of the ERC721A with very simple logic. Everything that works in ERC721 still works in ERC721B.
We've measured the gas costs and prices for minting, comparing OpenZeppelin's ERC721 vs ERC721A vs ERC721B. In our measurements, the same application-level logic is used, the only difference being the _safeMint function called.
