solana-program-examples/tokens/token-2022/nft-meta-data-pointer/anchor-example/app/contexts/WalletContextProvider.tsx

import { FC, ReactNode, useMemo } from "react"
import { WalletAdapterNetwork } from "@solana/wallet-adapter-base"
import {
  ConnectionProvider, 
  WalletProvider,
} from "@solana/wallet-adapter-react"
import { WalletModalProvider } from "@solana/wallet-adapter-react-ui"
import {
  PhantomWalletAdapter,
  SolflareWalletAdapter,
} from "@solana/wallet-adapter-wallets"
import { clusterApiUrl } from "@solana/web3.js"
require("@solana/wallet-adapter-react-ui/styles.css")

const WalletContextProvider: FC<{ children: ReactNode }> = ({ children }) => {
  const network = WalletAdapterNetwork.Devnet
  const endpoint = useMemo(() => clusterApiUrl(network), [network])

  const wallets = useMemo(
    () => [
      new PhantomWalletAdapter(),
      new SolflareWalletAdapter(),
    ],
    [network]
  )

  return (
    <ConnectionProvider endpoint={endpoint}>
      <WalletProvider wallets={wallets} autoConnect>
        <WalletModalProvider>{children}</WalletModalProvider>
      </WalletProvider>
    </ConnectionProvider>
  )
}

export default WalletContextProvider