Avalanche OASIS Provider

Overview

The Avalanche OASIS Provider enables seamless integration between the OASIS ecosystem and the Avalanche blockchain network. This provider implements the full OASIS storage and blockchain interfaces, allowing avatars, holons, and NFTs to be stored and managed on Avalanche's high-performance C-Chain (Contract Chain).

Features

✨ Full OASIS Integration

• Avatar management (create, read, update, delete)

• Avatar detail storage

• Holon (data object) storage

• NFT minting and transfers

• Transaction management

⚡ Avalanche Network Support

• C-Chain (EVM-compatible) integration

• High throughput (4,500+ TPS)

• Sub-second finality

• Low transaction fees

🔐 Security Features

• Wallet integration via WalletManager

• Private key management

• Transaction signing and verification

Installation

Add the Avalanche OASIS Provider to your project:

dotnet add package NextGenSoftware.OASIS.API.Providers.AvalancheOASIS

Configuration

Initialize Provider

using NextGenSoftware.OASIS.API.Providers.AvalancheOASIS;

// Avalanche Mainnet (C-Chain)
var avalancheProvider = new AvalancheOASIS(
    hostUri: "https://api.avax.network/ext/bc/C/rpc",
    chainPrivateKey: "YOUR_PRIVATE_KEY",
    chainId: 43114,
    contractAddress: "YOUR_CONTRACT_ADDRESS"
);

// Avalanche Testnet (Fuji C-Chain)
var avalancheProviderTestnet = new AvalancheOASIS(
    hostUri: "https://api.avax-test.network/ext/bc/C/rpc",
    chainPrivateKey: "YOUR_PRIVATE_KEY",
    chainId: 43113,
    contractAddress: "YOUR_CONTRACT_ADDRESS"
);

await avalancheProvider.ActivateProviderAsync();

Network Details

Mainnet (C-Chain)

• RPC URL: https://api.avax.network/ext/bc/C/rpc

• Chain ID: 43114

• Explorer: https://snowtrace.io

• Currency: AVAX

Testnet (Fuji C-Chain)

• RPC URL: https://api.avax-test.network/ext/bc/C/rpc

• Chain ID: 43113

• Explorer: https://testnet.snowtrace.io

• Faucet: https://faucet.avax.network

Usage Examples

Save Avatar

var avatar = new Avatar
{
    Id = Guid.NewGuid(),
    Username = "avalanche_user",
    Email = "[e-mail]"
};

var result = await avalancheProvider.SaveAvatarAsync(avatar);
if (!result.IsError)
{
    Console.WriteLine($"Avatar saved: {result.Result.Id}");
}

Load Avatar

var result = await avalancheProvider.LoadAvatarAsync(avatarId);
if (!result.IsError)
{
    Console.WriteLine($"Loaded: {result.Result.Username}");
}

Mint NFT

var mintRequest = new MintNFTTransactionRequest
{
    MintWalletAddress = "0x...",
    JSONMetaDataURL = "ipfs://...",
    MemoText = "My OASIS NFT on Avalanche"
};

var result = await avalancheProvider.MintNFTAsync(mintRequest);
if (!result.IsError)
{
    Console.WriteLine($"NFT Minted: {result.Result.TransactionResult}");
}

Send Transaction

var txRequest = new WalletTransactionRequest
{
    ToWalletAddress = "0x...",
    Amount = 1.5m // 1.5 AVAX
};

var result = await avalancheProvider.SendTransactionAsync(txRequest);

Smart Contract ABI

The provider uses a standard OASIS smart contract with the following functions:

• CreateAvatar(uint256, string, string)

• CreateAvatarDetail(uint256, string, string)

• CreateHolon(uint256, string, string)

• GetAvatarById(uint256)

• GetHolonById(uint256)

• mint(address, string) - NFT minting

• sendNFT(...) - NFT transfers

Performance

• Transaction Speed: Sub-second finality

• Cost: ~0.001 AVAX per transaction

• Throughput: 4,500+ TPS on C-Chain

• Scalability: Subnet support for custom chains

Advantages

🚀 High Performance

• Fastest blockchain for smart contracts

• Sub-second transaction finality

• Scalable subnet architecture

💰 Cost Effective

• Low gas fees

• Predictable costs

• Energy efficient (PoS)

🔗 Ecosystem

• Growing DeFi ecosystem

• EVM compatibility

• Cross-chain bridges

License

MIT License - Copyright © NextGen Software Ltd 2025

Support

• Documentation: https://docs.avax.network

• OASIS Docs: https://oasis.earth

• Issues: https://github.com/NextGenSoftwareUK/Our-World-OASIS-API-HoloNET-HoloUnity-And-.NET-HDK/issues