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"ethers"; import { getAbiObjectOwnership, getAbiERC721, getAbiERC721Collection } from "@evo/utils/ethers/abiHelper"; import type { CallbackType } from "@evo/utils/ethers/contractHelper"; import { pad0xBegin } from "@evo/utils/common/utils"; import { triggerContract, viewContract, getContract } from "@evo/utils/ethers/contractHelper"; import { TransactionResponse } from "@ethersproject/providers"; /** * ERC721 Owner of * @param provider Provider * @param tokenAddress ERC721 contract address * @param tokenId Token Id * @param callback Callback * @returns The address of owner */ export const erc721OwnerOf = async ( provider: ethers.providers.Provider, tokenAddress: string, tokenId: string, callback?: CallbackType ): Promise<string> => { const contract = await getContract(provider, tokenAddress, await getAbiObjectOwnership()); const results = await viewContract(contract, "ownerOf", [tokenId], callback); return results.length ? results[0] : ""; }; /** * Query if an address is an authorized operator for another address * @param provider Provider * @param owner The address that owns the NFTs * @param spender The address that acts on behalf of the owner * @param tokenContractAddress ERC721 contract address * @param callback Callback * @returns any */ export const erc721IsApprovedForAll = async ( provider: ethers.providers.Provider, owner: string, spender: string, tokenContractAddress: string, callback?: CallbackType ): Promise<boolean> => { const contract = await getContract(provider, tokenContractAddress, await getAbiERC721Collection()); const results = await viewContract(contract, "isApprovedForAll", [owner, spender]); return results.length ? results[0] : false; }; /** * Returns whether `spender` is allowed to manage `tokenId`. * @param provider Provider * @param spender The address that acts on behalf of the owner * @param tokenContractAddress The factory of tokenId. * @param tokenId ERC721 token Id; * @param callback Callback * @returns any */ export const erc721IsApprovedOrOwner = async ( provider: ethers.providers.Provider, spender: string, tokenContractAddress: string, tokenId: string, callback?: CallbackType ): Promise<boolean> => { const contract = await getContract(provider, tokenContractAddress, await getAbiERC721()); const owner = await viewContract(contract, "ownerOf", [pad0xBegin(tokenId)]); if (!owner._owner) { throw new Error("erc721IsApprovedOrOwner::Token Id does not exist!"); } const approvedAddress = await viewContract(contract, "getApproved", [pad0xBegin(tokenId)]); const isApprovedForAll = await erc721IsApprovedForAll(provider, owner._owner, spender, tokenContractAddress); return ( owner._owner?.toLowerCase() === spender.toLowerCase() || approvedAddress._approved?.toLowerCase() === spender.toLowerCase() || isApprovedForAll ); }; /** * Change or reaffirm the approved address for all of NFT * @param signer Signer * @param contractAddress The factory of tokenId. * @param spender The address that acts on behalf of the owner * @param approved Approved or Cancel Approved * @param callback Callback * @returns any */ export const erc721SetApprovalForAll = async ( signer: ethers.Signer, contractAddress: string, spender: string, approved: boolean, callback?: CallbackType ): Promise<TransactionResponse> => { const contract = await getContract(signer, contractAddress, await getAbiERC721Collection()); return triggerContract(contract, "setApprovalForAll", [spender, approved], callback); }; </code></pre> </article> </section> </div> <br class="clear"> <footer> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.11</a> on Mon Aug 15 2022 13:54:57 GMT+0800 (China Standard Time) using the <a href="https://github.com/clenemt/docdash">docdash</a> theme. </footer> <script>prettyPrint();</script> <script src="scripts/polyfill.js"></script> <script src="scripts/linenumber.js"></script> </body> </html>