Methods Usage <v0.1.13

import { Banana } from '@rize-labs/banana-wallet-sdk/dist/BananaProvider'
import { Chains } from '@rize-labs/banana-wallet-sdk/dist/Constants'

 * Banana Module:
 * This module will be responsible to deliver everything related to account abstraction
 * , smart contract wallets and touchId authentication i.e aaProvider, walletAddress, walletapi etc

 * Banana Module Initialization
 * @params chain enum and JsonRpcUrl
 * @returns Banana Class instance
const jsonRpcUrl = '<Alchemy goerli api key>';
const bananaInstance = new Banana(Chains.goerli, jsonRpcUrl);

 * @params none
 * @returns walletName: string
 * accessed from banana instance and used to fetch walletname.
 * cached in user's cookie storage 
const walletName: string = bananaInstance.getWalletName();

// In case walletName is not fetched, the dev needs to prompt the user to enter the walletName which he had
// previously used with the dapp. In case user hasn't created any wallet with the dapp dev can promt
// user for new wallet name for his wallet.

 * @params walletName: string
 * @returns isUnique: bool
 * @nature async
 * accessed from banana instance and be used to check if walletName 
 * for new wallet provided by user is unique or not
const isUnqiue: boolean = await bananaInstance.isWalletNameUnique(walletName);

 * @params walletName: string
 * @returns Smart Contract Wallet Address: string
 * @nature async 

 * Method behavior
 * In case the user already has a wallet with walletName name the method will return the 
 * smart contract wallet address for that walletName.
 * In case the user don't have a wallet with walletName name the method will return the
 * smart contract wallet address for the newly created wallet.
const walletAddress: string = await bananaInstance.getWalletAddress(walletName);

// method which returns provider which can be further used to retrieve signer and initialize contract
const aaProvider = await bananaInstance.getAAProvider(walletAddress);

// extracting aaSigner
const aaSigner = aaProvider.getSigner();

// initializing sample greeter contract with aaSigner
const GreeterContract = new ethers.Contract(

// greeter contract greet calldata
const greetCallData = GreeterContract.interface.encodeFunctionData(

 * @params functionCalldata: bytes, walletAddress: string, address: string, value: double
 * @return transaction hash
 * @nature async
const txn = await bananaInstance.execute(greetCallData, Greeter.address, amount)

If you have any questions please post them Banana SDK Discord forum.

Last updated