BSC币安智能链质押挖矿系统开发技术详细分析以及合约部署方案

import Web3 from 'web3'

const BSC_CHAIN_ID = 56

export const changeToBscNetwork = async (
  library: any,
  onError?: () => void
) => {
  try {
    await library.provider.request({
      method: 'wallet_switchEthereumChain',
      params: [{ chainId: Web3.utils.toHex(BSC_CHAIN_ID) }]
    })
  } catch (error: any) {
    if (error.code === 4902) {
      try {
        library.provider.request({
          jsonrpc: '2.0',
          method: 'wallet_addEthereumChain',
          params: [
            {
              chainId: '0x38',
              chainName: 'Binance Smart Chain Mainnet',
              rpcUrls: ['https://bsc-dataseed.binance.org/'],
              nativeCurrency: {
                name: 'BNB',
                symbol: 'BNB',
                decimals: 18
              },
              blockExplorerUrls: ['https://bscscan.com']
            }
          ],
          id: 0
        })
      } catch (e) {
        console.error('changeNetwork addEthereumChain error', e)
      }
    }
    onError?.()
    console.error('changeNetwork error', error)
  }
}

library.provider.request({
  jsonrpc: '2.0',
  method: 'wallet_addEthereumChain',
  params: [
    {
      chainId: '0x38',
      chainName: 'Binance Smart Chain Mainnet',
      rpcUrls: ['https://bsc-dataseed.binance.org/'],
      nativeCurrency: {
        name: 'BNB',
        symbol: 'BNB',
        decimals: 18
      },
      blockExplorerUrls: ['https://bscscan.com']
    }
  ],
  id: 0
})