@consensys-software/permissioning-smart-contracts/src/containers/Tabs/useTransaction.ts

Smart contracts and dapp implementing EEA spec onchain permissioning

// Libs
import { useState, useCallback } from 'react';

export default () => {
  const [transactions, setTransactions] = useState(new Map<string, string>());

  const addTransaction = useCallback((identifier: string, status: string) => {
    setTransactions(transactions => {
      const updatedTransactions = new Map(transactions);
      updatedTransactions.set(identifier, status);
      return updatedTransactions;
    });
  }, []);

  const updateTransaction = useCallback(
    (identifier: string, status: string) => addTransaction(identifier, status),
    [addTransaction]
  );

  const deleteTransaction = useCallback((identifier: string) => {
    setTransactions(transactions => {
      const updatedTransactions = new Map(transactions);
      updatedTransactions.delete(identifier);
      return updatedTransactions;
    });
  }, []);

  return {
    transactions,
    addTransaction,
    updateTransaction,
    deleteTransaction,
    setTransactions
  };
};