Extend the SDK

Besides, users can also customize their own wallet provider in an easier way. The BTCProvider class provides default implementations for most Bitcoin interfaces. What users need to do is compare the interfaces of the target wallet with the default implementations of BTCProvider. The CosmosProvider class provides default implementations for most Cosmos interfaces. What users need to do is compare the interfaces of the target wallet with the default implementations of CosmosProvider.

import {
  BTCProvider,
  CosmosProvider,
  TomoChain
} from '@tomo-inc/tomo-wallet-provider'

class XYZWallet extends BTCProvider {
  constructor(chains: TomoChain[]) {
    // @ts-ignore
    const bitcoinNetworkProvider = window?.xyzWallet

    if (!bitcoinNetworkProvider) {
      throw new Error('Injected XYZ Wallet not found')
    }
    super(chains, bitcoinNetworkProvider)
  }

  connectWallet = async (): Promise<this> => {
    const accounts = await this.bitcoinNetworkProvider?.requestAccounts()

    const address = accounts[0]
    const publicKeyHex = await this.getPublicKeyHex()

    if (!address || !publicKeyHex) {
      throw new Error('Could not connect to injected Wallet')
    }
    return this
  }
}

class ABCWallet extends CosmosProvider {
  constructor(chains: TomoChain[]) {
    // @ts-ignore
    const cosmosProvider = window?.abcCosmos

    if (!cosmosProvider) {
      throw new Error('Injected ABC Wallet not found')
    }
    super(chains, cosmosProvider)
  }
}