NES.TECH Documentation
  • 👋Welcome to NES.TECH
  • Overview
    • 💡What we do
  • SDKs Guide
    • 📪Kickstart with our SDKs
    • ⛓️Blockchain SDKs
      • 📌Solana SDK
        • ⛏️generateAccount
        • ⛏️getAccountFromSecretKey
        • ⛏️getBalance
        • ⛏️sendSOL
        • ⛏️mintNFT
        • ⛏️estimateTransferToken
        • ⛏️estimateMint
        • ⛏️estimateSOLTransfer
        • ⛏️estimateMintToken
        • ⛏️createToken
        • ⛏️transferToken
      • 📌EVM Chains SDK
        • ⛏️BulkNFT
          • 🔗deployContract
          • 🔗bulkMint
        • ⛏️NFT
          • 🔗deployContract
          • 🔗mint
          • 🔗convertToVLRY
          • 🔗VLRYToUSD
          • 🔗VLRYToCRYPTO
          • 🔗transferOwnership
          • 🔗transfer
          • 🔗estimateFee
            • 📌ERC20
              • ⛏️deploy
              • ⛏️mint
              • ⛏️transfer
            • 📌ERC721
              • ⛏️deploy
              • ⛏️mint
              • ⛏️transfer
            • 📌ERC1155
              • ⛏️deploy
              • ⛏️mint
              • ⛏️transfer
            • 📌Soulbound
              • ⛏️deploy
              • ⛏️mint
        • ⛏️Contracts
          • 🔗ERC20
            • 📌deployContract
            • 📌transfer
            • 📌mint
          • 🔗ERC721
            • 📌deployContract
            • 📌transfer
            • 📌mint
            • 📌approve
          • 🔗ERC1155
            • 📌deployContract
            • 📌transfer
            • 📌mint
            • 📌balanceOf
          • 🔗Soulbound
            • 📌deployContract
        • ⛏️Wallet
          • 🔗getBalance
          • 🔗sendEther
          • 🔗depositEther
          • 🔗checkIfAddress
        • ⛏️NFTMarketPlace
          • 🔗listNFT
          • 🔗buyNFT
          • 🔗getNFT
          • 🔗placeBid
          • 🔗transferNFT
        • ⛏️BlockchainInfo
          • 🔗availableBlockchains
          • 🔗availableContracts
      • 📌Tokenomics SDK
        • ⛏️createStake
        • ⛏️removeStake
        • ⛏️approveVolary
        • ⛏️transferVolary
        • ⛏️getBalance
        • ⛏️claimRewards
        • ⛏️addRewards
        • ⛏️swapVlry
        • ⛏️getSwapAmountVolary
      • 📌Storage SDK
        • ⛏️uploadToIPFS
        • ⛏️fetchMetadata
      • 📌Casper SDK
        • ⛏️generateWallet
        • ⛏️fetchWalletFromPrivateKey
        • ⛏️fetchAccountHash
        • ⛏️getBalance
        • ⛏️transferTokens
        • ⛏️deployNFTContract
        • ⛏️mintNFT
        • ⛏️mintFreeNFT
        • ⛏️checkNFT
        • ⛏️approveSale
        • ⛏️transferNFT
        • ⛏️getNftOwner
        • ⛏️bid
        • ⛏️startBidding
        • ⛏️closeBidding
        • ⛏️cancelAuction
        • ⛏️getUserData
        • ⛏️getNftInfo
        • ⛏️getContractDetails
        • ⛏️getWalletDetails
        • ⛏️checkPublicKey
        • ⛏️getAllAuctionNft
        • ⛏️transferWithRoyalty
        • ⛏️getPaymentAmounts
        • ⛏️transferPlaceBidAmount
      • 📌XY-Finance SDK
        • ⛏️getRecommendedTokens
        • ⛏️getQuote
        • ⛏️approveSwap
        • ⛏️executeSwap
      • 📌Wallet SDK
        • ⛏️createWallet
        • ⛏️getKeys
          • 🔗btc
          • 🔗evm
          • 🔗sol
          • 🔗near
        • ⛏️transfer
          • 🔗evm
          • 🔗sol
          • 🔗btc
          • 🔗near
        • ⛏️estimateFee
          • 🔗evm
          • 🔗sol
        • ⛏️txStatus
          • 🔗evm
          • 🔗sol
          • 🔗near
        • ⛏️getBalanceByMnemonic
          • 🔗evm
          • 🔗sol
          • 🔗btc
          • 🔗near
        • ⛏️chainBalances
          • 🔗evm
          • 🔗sol
        • ⛏️testChainBalances
        • ⛏️getTotalBalanceInUSDByAddresArray
          • 🔗evm
          • 🔗sol
        • ⛏️isAddress
          • 🔗evm
          • 🔗sol
        • ⛏️isPrivateKey
          • 🔗evm
          • 🔗sol
        • ⛏️isMnemonic
          • 🔗evm
      • 📌Explorer SDK
        • ⛏️getLatestTxsOfAddress
        • ⛏️getLatestTxs
        • ⛏️getTransferFromAddress
    • 🤖AI Guide
      • 📌Overview
      • 📌Face Recognition
        • ⛏️faceRecoRegisterUser
        • ⛏️faceRecoCompareFaceWithId
        • ⛏️faceRecoCompareFaceWithFace
      • 📌Check Toxicity
        • ⛏️checkToxicityImage
        • ⛏️checToxicityTest
      • 📌Caption and Tag Generator
        • ⛏️generateCaptionAndTagsFromImage
      • 📌Stable Diffusion
        • ⛏️stableDiffusionGenerateImage
      • 📌Image Similarity
        • ⛏️imageSimilarityTrain
        • ⛏️imageSimilarityTest
  • Template Library
    • 🛠️Get Started
    • 🕵️Technical Overview
    • 👷Smart Contracts
      • 📌ERC721
      • 📌ERC721A
      • 📌ERC1155
      • 📌Soulbound
      • 📌ERC6551
        • 📌Account
        • 📌Registry
      • 📌Fractional
      • 📌BiDirectionalPaymentChannel
      • 📌Swap
      • 📌ERC2981
      • 📌Flashloans
      • 📌Vault
      • 📌ERC884
      • 📌Play To Earn Contract
      • 📌Escrow
      • 📌UpgradableNFTContract
    • ⚖️Templates Library
      • 🥇Music Tracks/Album
      • 🥇Loyalty Point System
      • 🥇Real Estate Ownership
      • 🥇Artwork Authentication
      • 🥇Crowdfunding Platform
      • 🥇Social Tokens
      • 🥇Food and Recipe
      • 🥇Scientific Research
      • 🥇Educational Certification
      • 🥇Trading Cards
      • 🥇Digital Fashion
      • 🥇Bulk Digital Fashion
      • 🥇Governance Token
      • 🥇Content Licenses
      • 🥇Membership Cards
      • 🥇Bulk Membership Cards
      • 🥇Artifacts
      • 🥇Debt Instruments
      • 🥇Bulk Debt Instruments
      • 🥇Profit Sharing
      • 🥇Digital Souvenirs
      • 🥇Fractional Ownership of Intellectual Property
      • 🥇Digital Autographs and Signature
      • 🥇Bulk Digital Autographs and Signature
      • 🥇Film and Media Rights
      • 🥇Bulk Film and Media Rights
      • 🥇Sports Achievements
      • 🥇Bulk Sports Achievements
      • 🥇Digital Comics and Graphic Novels
      • 🥇Bulk Digital Comics and Graphic Novels
      • 🥇Proposals and Voting
      • 🥇Music Royalties
      • 🥇Gaming Royalties
      • 🥇Art Token Aggregation
      • 🥇Medical Token Aggregation
      • 🥇Charity Token Aggregation
      • 🥇Travel Token Aggregation
      • 🥇Time-Limited Access Tokens
      • 🥇Virtual Art Exhibition
  • KRYPTOKASE
    • 🛠️KryptoKase: Overview
    • 🕵️Technical Overview
    • 👷Functionalities
      • 📌Create Token
      • 📌Mint Token
      • 📌Transfer Tokens
      • 📌Airdrop Token
      • 📌Schedule Vesting
      • 📌Token Analytics
  • AERIE
    • 🏆Introduction
      • 📌Overview
      • 📌Use Cases
    • 📖User Guide
      • 📌Dashboard
      • 📌Managing Assets
        • 🔗Creating Assets
      • 📌Wallet Management
        • 🔗Overview
      • 📌Client Management
        • 🔗Adding Client
        • 🔗Managing Members
      • 📌Invoice Management
        • 🔗Managing Tickets
    • 📌Features
      • 🔗AI Image Generation
      • 🔗Portfolio Management
      • 🔗CDN Analytics
  • ROMULUS
    • Contracts
      • Dynamic NFT
      • Rental NFT
      • ERC 998
      • Fractional NFT
  • Layer 1
    • 🗡️DAG-EVM Hybrid Layer 1
    • ⛓️Setting up an RPC/RO Node
    • 👾Node Functions
      • 📍ftm.call()
      • 📍ftm.chainId()
      • 📍ftm.contract()
      • 📍ftm.currentEpoch()
      • 📍ftm.estimateGas()
      • 📍ftm.feeHistory()
      • 📍ftm.fillTransaction()
      • 📍ftm.filter()
      • 📍ftm.getAccounts()
      • 📍ftm.getBalance()
      • 📍ftm.getBlock()
      • 📍ftm.getBlockByHash()
      • 📍ftm.getBlockByNumber()
      • 📍ftm.getBlockNumber()
      • 📍ftm.getBlockTransactionCount()
      • 📍ftm.getBlockUncleCount()
      • 📍ftm.getCode()
      • 📍ftm.getCoinbase()
      • 📍ftm.getCompilers()
      • 📍ftm.getEvent()
      • 📍ftm.getGasPrice()
      • 📍ftm.getHashrate()
      • 📍ftm.getHeaderByHash()
      • 📍ftm.getHeaderByNumber()
      • 📍ftm.getHeads()
      • 📍ftm.getMaxPriorityFeePerGas()
      • 📍ftm.getPendingTransactions()
      • 📍ftm.getProof()
      • 📍ftm.getProtocolVersion()
      • 📍ftm.getStorageAt()
      • 📍ftm.getTransaction()
      • 📍ftm.getTransactionCount()
      • 📍ftm.getTransactionReceipt()
      • 📍ftm.icapNamereg()
      • 📍ftm.isSyncing()
      • 📍ftm.namereg()
      • 📍ftm.sendRawTransaction()
      • 📍ftm.signTransaction()
    • 🎫Admin Node Functions
      • 📍admin.addPeer()
      • 📍admin.addTrustedPeer()
      • 📍admin.exportChain()
      • 📍admin.getNodeInfo()
      • 📍admin.getPeers()
      • 📍admin.importChain()
      • 📍admin.removePeer()
      • 📍admin.removeTrustedPeer()
      • 📍admin.startHTTP()
      • 📍admin.startWS()
      • 📍admin.stopHTTP()
      • 📍admin.stopWS()
    • 📄Oracle Contracts
      • 📌Traffic Feed Contract
      • 📌Air Quality Feed Contract
      • 📌Football Player Feed Contract
      • 📌Stock Price Feed Contract
      • 📌Weather Feed Contract
      • 📌Crypto Price Feed Contract
      • 📌Random Number Contract
Powered by GitBook
On this page
  • Description
  • Parameters
  • Response
  • Example Request and Response
  • Prerequisites
  • Request
  • Response
  • Use Cases
  1. SDKs Guide
  2. Blockchain SDKs
  3. EVM Chains SDK
  4. Contracts
  5. ERC721

approve

Description

The approve function allows the owner of an ERC721 token to grant approval to another address or contract to transfer the token on their behalf.

Parameters

Parameter
Type
Description

blockchain

string

The blockchain network to use, e.g., Ethereum, Binance Smart Chain

contractAddress

string

The address of the ERC721 contract containing the token

tokenId

string

The ID of the token to approve for transfer

spender

string

The address of the account or contract to grant transfer approval

privateKey

string

The private key of the token owner's account

Response

Field
Type
Description

code

number

1 for success, 0 for failure

receipt

object

The transaction receipt of the approve transaction

Example Request and Response

Prerequisites

Before making requests with NEST® SDK, you must have it installed.

You can install NEST® SDK using either npm or yarn. Use the following commands to install NEST® SDK:

npm install @nest25/evm-chains-lib
OR
yarn add @nest25/evm-chains-lib

Request

Here is an example of how to make a approve request using the NEST® SDK:

const {ERC721} = require('@nest25/evm-chains-lib')
// create a new wallet instance
const erc721 = new ERC721();
const privateKey = "your private key here"

const main = async () => {
    // approve erc721 token
    const receipt=await erc721.approve(
        'klay',
        '0xE4eD9066bD1A34994445cAd01Cb9A73A59b8A045',
        '1',
        '0xE668C72D4C67236A712Ce69A91C74358586f31ed',
        privateKey
        )
    // print receipt
    console.log(receipt);
}
main()

Response

  

Use Cases

  • Crypto wallets: They can use this function to grant approval to other addresses or contracts to transfer their ERC721 tokens on their behalf.

  • DApp developers: Developers can use this function to enable users to grant approval to their smart contracts to transfer their ERC721 tokens.

Last updated 1 year ago

⛓️
📌
⛏️
🔗
📌