首页逻辑

• account-overview-eth.tsx
  • AccountOverviewLayout
    • Carousel
    • AccountOverviewTabs
  • EthOverview
    • CoinOverview
      • UserPreferencedCurrencyDisplay
        • $0.00 USD currency-display.component.js
          • conversionRate 转换比例
          • inputValue 资产金额
      • ButtonIcon 隐私按钮，点击后内容变成*号
  • 获取余额逻辑
    • TokenBalancesController #balanceFetchers
      • AccountsApiBalanceFetcher
      • RpcBalanceFetcher
• https://github.com/MetaMask/core/blob/main/packages/assets-controllers/src/multicall.ts
  • 区块链多合约调用（Multicall）功能
• 查询余额core-main
  • 调用区块链RPC 请求eth_call
  • 执行链上聚合合约0xcA11bde05977b3631167028862bE2a173976CA11，aggregate 、getEthBalance
  • 执行Call[] calldata calls // call.target.call(call.callData);
    • struct Call { address target; bytes callData; }
  • calldata [SupportedTokenDetectionNetworks.mainnet]: ‘0xb1f8e55c7f64d203c1400b9d8555d050f94adf39’, for(uint i = 0; i < users.length; i++) { for (uint j = 0; j < tokens.length; j++) { if (tokens[j] != address(0x0)) { addrBalances[addrIdx] = tokenBalance(users[i], tokens[j]); } else { addrBalances[addrIdx] = users[i].balance; // ETH balance
    }
  • multicall3 - toke allCalls.push({ target: tokenAddress, allowFailure: true, callData: tempERC20Contract.interface.encodeFunctionData( BALANCE_OF_FUNCTION, [group.accountAddress], ), });
    • 原生 allCalls.push({ target: multicall3Address, allowFailure: true, callData: multicall3TempContract.interface.encodeFunctionData( GET_ETH_BALANCE_FUNCTION, [userAddress], ), });
  • 传递参数格式

• 转账 TransactionController async #publishTransaction( ethQuery: EthQuery, transactionMeta: TransactionMeta, { skipSubmitHistory }: { skipSubmitHistory?: boolean } = {}, ): Promise { const transactionHash = await query(ethQuery, 'sendRawTransaction', [ transactionMeta.rawTx, ]);

        if (skipSubmitHistory !== true) {
          this.#updateSubmitHistory(transactionMeta, transactionHash);
        }
  
        return transactionHash;
      }   创建RPC通讯Client #createAutoManagedNetworkClientRegistry()
  

• 签名 并执行交易
  • Web3Provider @ethersproject/providers
  • NetworkClient