lotus-sdk/dist/lib/bitcore/encoding/base58.js

Central repository for several classes of tools for integrating with, and building for, the Lotusia ecosystem

import bs58 from 'bs58';
const ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'.split('');
export class Base58 {
    buf;
    constructor(obj) {
        if (Buffer.isBuffer(obj)) {
            const buf = obj;
            this.fromBuffer(buf);
        }
        else if (typeof obj === 'string') {
            const str = obj;
            this.fromString(str);
        }
        else if (obj) {
            this.set(obj);
        }
    }
    static validCharacters(chars) {
        if (Buffer.isBuffer(chars)) {
            chars = chars.toString();
        }
        return Array.from(chars).every(char => ALPHABET.includes(char));
    }
    set(obj) {
        this.buf = obj.buf || this.buf || undefined;
        return this;
    }
    static encode(buf) {
        if (!Buffer.isBuffer(buf)) {
            throw new Error('Input should be a buffer');
        }
        return bs58.encode(buf);
    }
    static decode(str) {
        if (typeof str !== 'string') {
            throw new Error('Input should be a string');
        }
        return Buffer.from(bs58.decode(str));
    }
    fromBuffer(buf) {
        this.buf = buf;
        return this;
    }
    fromString(str) {
        const buf = Base58.decode(str);
        this.buf = buf;
        return this;
    }
    toBuffer() {
        return this.buf;
    }
    toString() {
        return Base58.encode(this.buf);
    }
}