The list of common tools for web3 and crypto

Polkadot Typed Api was moved to another repository. polkadot-typed-api

EigenLayer Tools were moved to another repository. eigenlayer-tools

Tools

• abbreviateAddress - truncate address, like 0x387...dCE
• addHTMLBreaksToAddress - add invisible breaks to string, to make it breakable
• removeLeading0x - remove leading 0x from string, useful for logs parsing 0x387...dCE -> 387...dCE
• toBigNumber - transform any digital value to EthersBigNumber
• toBigFloat - transform any digital value to floated BigNumber
• explorerUrl - generates blockchain explorer URLs for transactions, addresses, and blocks.

abbreviateAddress

Shortens blockchain addresses by keeping characters at the start and end, replacing the middle with symbols.

Parameters

• address: The blockchain address to abbreviate.
• options: Config for customization:
  • number: Sets characters to keep at start/end.
  • Options (object): Advanced settings like size, symbol, and ignore list.

Usage

Default

import { abbreviateAddress } from "common-crypto-tools";

abbreviateAddress("0x1234567890abcdef1234567890abcdef");
// Output: "0x1234...cdef"

Custom Size and Symbol

abbreviateAddress("0x1234567890abcdef1234567890abcdef", {
  size: { start: 4, end: 4 },
  symbol: "*",
  symbolsCount: 5,
});
// Output: "0x1234*****cdef"

Ignore List

abbreviateAddress("0x1234567890abcdef1234567890abcdef", {
  ignoreList: ["0x1234567890abcdef1234567890abcdef"],
});
// Output: "0x1234567890abcdef1234567890abcdef"

Advanced

abbreviateAddress("0x1234567890abcdef1234567890abcdef", {
  size: [2, 6],
  symbol: ".",
});
// Output: "0x12...cdef12"

addHTMLBreaksToAddress

The addHTMLBreaksToAddress function adds invisible HTML breaks to a string (e.g., a blockchain address) at regular intervals, making it more readable or ensuring proper wrapping in HTML contexts.

Parameters

• address (string): The input string to format. Defaults to an empty string.
• lettersBeforeSpace (number): The number of characters between each inserted invisible space. Must be a positive number.

Returns

A string with invisible HTML breaks added at the specified intervals.

Usage

Default Usage

import { addHTMLBreaksToAddress } from 'common-crypto-tools';

console.log(addHTMLBreaksToAddress("0x1234567890abcdef"));
// Output: "0x123​4567​890a​bcde​f"

Custom Interval

console.log(addHTMLBreaksToAddress("0x1234567890abcdef", 6));
// Output: "0x1234&#8203567890&#8203abcdef"

Error Handling

try {
  addHTMLBreaksToAddress("0x1234567890abcdef", -1);
} catch (error) {
  console.error(error.message);
  // Output: "Param lettersBeforeSpace is to small: -1"
}

removeLeading0x

Removes the 0x prefix from a string if it exists.

Parameters

• data (string): Input string.

Returns

A string without the 0x prefix, or the original string if no prefix is found.

Examples

removeLeading0x("0x123456"); // "123456"
removeLeading0x("123456");   // "123456"
removeLeading0x("0x");       // ""

toBigNumber

Converts a BigNumberish value into an Ethers BigNumber instance.

Parameters

• value (BigNumberish): The input value to convert. Can be a number, string, or other compatible type.

Returns

An Ethers BigNumber instance representing the input value.

Examples

import { toBigNumber } from 'common-crypto-tools';

// Convert number
console.log(toBigNumber(123).toString());
// Output: "123"

// Convert string
console.log(toBigNumber("456").toString());
// Output: "456"

// Convert hex string
console.log(toBigNumber("0x1a").toString());
// Output: "26"

toBigFloat

Converts a value (BigNumber, Ethers BigNumber, or other valid input) into a BigNumber instance for consistent floating-point operations.

Parameters

• value (BigNumber.Value | EthersBigNumber): The input value to convert. Supports BigNumber-compatible formats or Ethers BigNumber.

Returns

A BigNumber instance representing the input value.

Examples

import { toBigFloat } from 'common-crypto-tools';
import { BigNumber as EthersBigNumber } from 'ethers';

// Convert Ethers BigNumber
const ethersValue = EthersBigNumber.from("1000000000000000000");
console.log(toBigFloat(ethersValue).toString());
// Output: "1000000000000000000"

// Convert number
console.log(toBigFloat(123.456).toString());
// Output: "123.456"

// Convert string
console.log(toBigFloat("12345.6789").toString());
// Output: "12345.6789"

explorerUrl

The explorerUrl function generates blockchain explorer URLs for transactions, addresses, and blocks. It supports multiple blockchain networks and allows customization of the base URL and paths.

Features

• Generates URLs for transactions, addresses, and blocks.
• Supports Ethereum, Arbitrum, Polygon, Binance Smart Chain, Optimism, Fantom, Avalanche, Solana, Tron, and Cosmos.
• Allows customization of the base URL and path segments.

Usage

Basic Usage

import { explorerUrl } from 'common-crypto-tools';

// Ethereum Explorer
const ethExplorer = explorerUrl("ethereum");
console.log(ethExplorer.tx("0x123")); // Output: https://etherscan.io/tx/0x123
console.log(ethExplorer.address("0xabc")); // Output: https://etherscan.io/address/0xabc
console.log(ethExplorer.block(123456)); // Output: https://etherscan.io/block/123456

// Polygon Explorer
const polygonExplorer = explorerUrl("polygon");
console.log(polygonExplorer.tx("0x456")); // Output: https://polygonscan.com/tx/0x456

Customization

// Custom Ethereum Explorer
const customEthExplorer = explorerUrl("ethereum", {
  base: "https://custom.etherscan.io",
  tx: "transaction",
  address: "addr",
  block: "blk",
});

console.log(customEthExplorer.tx("0x123")); // Output: https://custom.etherscan.io/transaction/0x123
console.log(customEthExplorer.address("0xabc")); // Output: https://custom.etherscan.io/addr/0xabc
console.log(customEthExplorer.block(123456)); // Output: https://custom.etherscan.io/blk/123456

Error Handling

// Unsupported Network
try {
  explorerUrl("unknown");
} catch (error) {
  console.error(error.message); // Output: "Unsupported network: unknown"
}