walt-id/waltid-nftkit

All-In-One NFT infrastructure toolkit

NFT Kit

by walt.id

Use digital assets like non-fungible tokens (NFTs)

Getting Started

• REST Api - Use the functionality of the NFT Kit via an REST api.
• Maven/Gradle Dependency - Use the functions of the NFT Kit in a Kotlin/Java project.

Checkout the Official Documentation, to find out more.

What is the NFT Kit?

A Kotlin library for managing NFTs

Features

• Deployment and Access Management of NFT smart contracts on multiple chains
• Base functionalities like minting NFTs, managing NFT metadata and much more
• Verification of NFT ownership and token traits
• Smart Contract extensions to add for example token transfer control

Example

• Deployment of ERC721 smart contract
• Minting of a new token
• Fetching of NFT metadata

fun main() {
    
        // Deploy new ERC721 smart contract instance on polygon network
        val deploymentOptions = DeploymentOptions(AccessControl.OWNABLE, TokenStandard.ERC721)
        val deploymentParameter = DeploymentParameter("Metaverse", "MTV",DeploymentParameter.Options(true, true))
        val result = NftService.deploySmartContractToken(Chain.POLYGON, deploymentParameter, deploymentOptions)
    
        // Mint new NFT
        val attribute1 : NftMetadata.Attributes = NftMetadata.Attributes(trait_type = "trait_type1", value = "value1")
        val attribute2 : NftMetadata.Attributes = NftMetadata.Attributes(trait_type = "trait_type2", value = "value2")
        val attributes = mutableListOf(attribute1, attribute2)
        val nftMetadata : NftMetadata = NftMetadata(name = "name", description = "description", image = "", attributes = attributes)
        val mintingParameter = MintingParameter("", "0xaf87c5Ce7a1fb6BD5aaDB6dd9C0b8EF51EF1BC31",nftMetadata)
        val mintingOptions = MintingOptions(MetadataStorageType.ON_CHAIN)
        val result = NftService.mintToken(Chain.POLYGON,"0xFd9426f82Ae1edBC6b5eC2B0Ea5416D34Ca6E9b6", mintingParameter, mintingOptions)       

        // Fetch NFT Metadata URI 
        val result = NftService.getNftMetadataUri(Chain.POLYGON, "0xFd9426f82Ae1edBC6b5eC2B0Ea5416D34Ca6E9b6", BigInteger.valueOf(26))

        // Fetch NFT Metadata
        val result = NftService.getNftMetadata(Chain.POLYGON, "0xFd9426f82Ae1edBC6b5eC2B0Ea5416D34Ca6E9b6", BigInteger.valueOf(26))
    }

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License

Licensed under the Apache License, Version 2.0