Crypto Wallet Address Validator

A simple utility to validate a cryptocurrency wallet address.

Installation

To install the package, run:

npm install r2c-wallet-validator

Usage

Import the necessary functions and types from r2c-wallet-validator and use them in your code.

import { isWalletValid } from "r2c-wallet-validator";

const result = isWalletValid("your_wallet_address_here");

if (!result.valid) {
  console.error("Error message:", result.error?.message);
} else {
  console.log("Wallet address type:", result.type);
}

Example

import { isWalletValid, ValidationErrorMessage, WalletType } from "r2c-wallet-validator";

const addresses = [
  "0x742d35Cc6634C0532925a3b844Bc454e4438f44e", // EVM
  "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy", // Bitcoin
  "9A5oG2fXhxpBnh9qVHVk3dxp4Up1gkp8q5vj5rwiUJr", // Solana
  "invalid_address",
];

addresses.forEach((address) => {
  const result = isWalletValid(address);
  if (!result.valid) {
    switch (result.error?.message) {
      case ValidationErrorMessage.EMPTY_ADDRESS:
        console.log(`Address: ${address} is invalid: Address is empty.`);
        break;
      case ValidationErrorMessage.INVALID_ADDRESS:
        console.log(`Address: ${address} is invalid: Address format is incorrect.`);
        break;
      default:
        console.log(`Address: ${address} is invalid.`);
        break;
    }
  } else {
    switch (result.type) {
      case WalletType.EVM:
        console.log(`Address: ${address} is valid and of type EVM.`);
        break;
      case WalletType.SOLANA:
        console.log(`Address: ${address} is valid and of type Solana.`);
        break;
      case WalletType.BITCOIN:
        console.log(`Address: ${address} is valid and of type Bitcoin.`);
        break;
      default:
        console.log(`Address: ${address} is valid but of unknown type.`);
        break;
    }
  }
});

Function Details

isWalletValid(address: string): { valid: boolean, type?: WalletType, error?: { statusCode: number, message: ValidationErrorMessage } }

• Parameters:

  • address (string): The cryptocurrency wallet address to validate.

• Returns:

  • An object with the following properties:
    • valid (boolean): Indicates whether the address is valid.
    • type (WalletType, optional): The type of the wallet address if valid (evm, solana, bitcoin).
    • error (object, optional): Contains error details if the address is invalid:
      • statusCode (number): The HTTP status code representing the error.
      • message (ValidationErrorMessage): The error message.

Types

ValidationErrorMessage

• An enum containing possible error messages when validating wallet addresses.
• Possible values:
  • EMPTY_ADDRESS: The provided address is empty.
  • INVALID_ADDRESS: The provided address does not match any supported wallet address patterns.

WalletType

• An enum representing the type of cryptocurrency wallet addresses.
• Possible values:
  • EVM: Ethereum Virtual Machine (EVM) wallet.
  • SOLANA: Solana wallet.
  • BITCOIN: Bitcoin wallet.

WalletValidationResponseError

• An interface representing the structure of an error response when validating wallet addresses.
• Properties:
  • statusCode: A number representing the HTTP status code of the error.
  • message: A ValidationErrorMessage indicating the specific error.

WalletValidationResponse

• An interface representing the structure of a wallet validation response.
• Properties:
  • valid: A boolean.
  • type: A WalletType indicating the type of the wallet.
  • error: A WalletValidationResponseError containing error details.
• When valid is true, the response will include type indicating the wallet type and error will be undefined. Conversely, when valid is false, the response will include error with details about the validation error and type will be undefined.

Supported Chains

• EVM addresses
• Solana
• Bitcoin
• Cosmos

Contributing

All contributions are welcome! Please feel free to open a Pull Request.