Wrapped Smart Contracts

Wrapped Smart Contracts are a new concept aimed at facilitating interaction with smart contracts on sidechains or Layer 2 (L2) solutions without the need for users to directly migrate to these new ecosystems. The Layer 1 (L1) blockchain acts as a robust coordination layer, allowing users to execute smart contracts on sidechains or L2 while remaining on the L1 blockchain. This provides a user-friendly experience, as users can interact with various systems without changing wallets or needing a deep understanding of the underlying processes.

Wrapped Smart Contract Library (WSCLib)

WSCLib is a TypeScript library designed to simplify interactions with Wrapped Smart Contracts (WSCs). Leveraging the novel concept of WSCs, this library brings the flexibility of executing smart contracts on sidechains or Layer 2 (L2) networks without users needing to leave their Layer 1 (L1) environment. This seamless experience eliminates the need for wallet switching or understanding the underlying complexities, offering a new user experience paradigm for blockchain interactions.

Features

WSCLib provides a rich set of features to interact with WSCs:

1. Network Detection: It supports various networks, including Cardano and Algorand, with built-in methods to detect the network type.
2. Wallet Interaction: The library offers wallet interaction support for wallets like Flint.
3. Algorand and Cardano Support: Algorand and Cardano specific functionalities are encapsulated in dedicated methods.
4. Bridge Actions: It provides built-in methods for wrapping and unwrapping assets using the WSC technology.
5. Transaction Tracking: It allows tracking of pending transactions and activities.
6. Balance Retrieval: It offers methods to retrieve native balances and token balances on both L1 and L2.
7. Address Retrieval: Methods for retrieving the current address in the original network.

Installation

Install the library using npm:

npm install milkomeda-wsc

Usage

Here's how you can use WSCLib in your project:

import WSCLib, { UserWallet, MilkomedaNetworkName } from 'milkomeda-wsc';

const network = MilkomedaNetworkName.C1Mainnet;
const wallet = "flint"; // replace with the cip30 wallet type of your choice
const oracleUrl = 'oracleUrl'; // replace with the URL for your Oracle
const jsonRpcProviderUrl = 'jsonRpcProviderUrl'; // replace with your RPC URL
const blockfrostKey = 'blockfrostKey'; // replace with your blockfrost key

const wscLib = new WSCLib(network, wallet, {
  oracleUrl,
  jsonRpcProviderUrl,
  blockfrostKey
});

// Inject the library with the necessary dependencies
await wscLib.inject();

Example: Fetch User's Native Balance

const balance = await wscLib.origin_getNativeBalance();
console.log(balance); // logs the user's native balance

The origin_getNativeBalance() method returns a Promise. The resolved string represents the user's native balance.

Documentation

WSCLib API Documentation

Class: WSCLib

The WSCLib is a class designed to interact with the blockchain and handle token management.

Methods

constructor

• Initializes the instance of the library.
• Parameters: None
• Returns: Instance of WSCLib

isCardano

• Checks if the current network is Cardano.
• Parameters: None
• Returns: Boolean

isAlgorand

• Checks if the current network is Algorand.
• Parameters: None
• Returns: Boolean

origin_getTokenBalances(address: string | undefined)

• Retrieves token balances for a specific address on the blockchain.
• Parameters:
  • address (string, optional): The address for which to retrieve token balances.
• Returns: Promise resolving to an array of OriginAmount objects

cardano_origin_getTokenBalances(address: string | undefined)

• Retrieves token balances for a specific address on the Cardano blockchain.
• Parameters:
  • address (string, optional): The address for which to retrieve token balances.
• Returns: Promise resolving to an array of OriginAmount objects

algorand_origin_getTokenBalances(address: string | undefined)

• Retrieves token balances for a specific address on the Algorand blockchain.
• Parameters:
  • address (string, optional): The address for which to retrieve token balances.
• Returns: Promise resolving to an array of OriginAmount objects

algo_updateAssetsWithBridgeInfo(tokens: OriginAmount[])

• Updates Algorand token asset information.
• Parameters:
  • tokens (Array of OriginAmount objects): The tokens to update.
• Returns: Promise resolving to an array of updated OriginAmount objects

ada_updateAssetsWithBridgeInfo(tokens: OriginAmount[])

• Updates Cardano token asset information.
• Parameters:
  • tokens (Array of OriginAmount objects): The tokens to update.
• Returns: Promise resolving to an array of updated OriginAmount objects

areTokensAllowed(assetIds: string[])

• Checks if specific tokens are allowed.
• Parameters:
  • assetIds (Array of strings): The asset IDs to check.
• Returns: Promise resolving to an object mapping asset IDs to booleans

constructAllowedTokensMap(normalizedAssetIds: string[], isAssetAllowed: (asset: any) => boolean)

• Constructs a map indicating which assets are allowed.
• Parameters:
  • normalizedAssetIds (Array of strings): The asset IDs to map.
  • isAssetAllowed (Function): Callback to determine if an asset is allowed.
• Returns: Object mapping asset IDs to booleans

cardano_areTokensAllowed(assetIds: string[])

• Checks if specific Cardano tokens are allowed.
• Parameters:
  • assetIds (Array of strings): The asset IDs to check.
• Returns: Promise resolving to an object mapping asset IDs to booleans

algorand_areTokensAllowed(assetIds: string[])

• Checks if specific Algorand tokens are allowed.
• Parameters:
  • assetIds (Array of strings): The asset IDs to check.
• Returns: Promise resolving to an object mapping asset IDs to booleans

wrap(destination: string | undefined, assetId: string, amount: number)

• Wraps tokens.
• Parameters:
  • destination (string, optional): The destination for the tokens.
  • assetId (string): The ID of the asset to wrap.
  • amount (number): The amount of the asset to wrap.
• Returns: Promise resolving to void

unwrap(destination: string | undefined, assetId: string, amount: BigNumber)

• Unwraps tokens.
• Parameters:
  • destination (string, optional): The destination for the tokens.
  • assetId (string): The ID of the asset to unwrap.
  • amount (BigNumber): The amount of the asset to unwrap.
• Returns: Promise resolving to void

latestActivity()

• Retrieves recent activity on the blockchain.
• Parameters: None
• Returns: Promise resolving to an array of Activity objects

getL2TransactionList(address: string | undefined, page = 0, offset = 10)

• Retrieves a list of Layer 2 transactions for a specific address.
• Parameters:
  • address (string, optional): The address for which to retrieve transactions.
  • page (number, default is 0): The page number for pagination.
  • offset (number, default is 10): The offset number for pagination.
• Returns: Promise resolving to an array of L2Transaction objects

Further Documentation

In-depth method descriptions, usage examples, and return types can be found in the library's codebase. If further information is required, please reach out to us. We're dedicated to making WSCLib a robust and easy-to-use solution for developers working with WSCs.

Contribute

WSCLib is open for contributions. We encourage you to contribute to WSCLib and help us improve this library.

License

WSCLib is MIT licensed.