AddressBook Smart Contract

This Solidity smart contract, named AddressBook, serves as a decentralized address book on the Ethereum blockchain. Users can add, remove, and retrieve addresses along with associated information.

Features:

1. Add Address: Users can add addresses along with descriptive information to the address book.

2. Remove Address: Users can remove addresses from their address book.

3. Retrieve Addresses: Users can retrieve a list of addresses stored in their address book.

4. Alias: Users can assign aliases to addresses for easy identification.

Usage:

1. Adding Address:

   • Function: addAddress(address adrs, string memory info)
   • Parameters:
     • adrs: The Ethereum address to be added.
     • info: Additional information associated with the address.
   • Event: AddressAdded(address indexed owner, address addedAddress, string info)
     • Triggered when an address is successfully added to the address book.

2. Removing Address:

   • Function: removeAddress(address adrs)
   • Parameters:
     • adrs: The Ethereum address to be removed.
   • Event: AddressRemoved(address indexed owner, address removedAddress)
     • Triggered when an address is successfully removed from the address book.

3. Retrieving Addresses:

   • Function: getAddress(address adrs) public view returns (address[] memory)
   • Parameters:
     • adrs: The owner's Ethereum address to retrieve the address book.
   • Returns:
     • An array of addresses associated with the owner.

4. Alias Lookup:

   • Function: getAlias(address madrs1, address adrs2) public view returns (string memory)
   • Parameters:
     • madrs1: The owner's Ethereum address.
     • adrs2: The address for which the alias is to be retrieved.
   • Returns:
     • The alias associated with the given address.

License:

This project is licensed under the MIT License.

Note:

Uncomment import "hardhat/console.sol"; and console.log() if you want to use logging for debugging purposes.