noob-ethereum/dist/junk/future/transaction-trie.js

A simple Ethereum library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const trie_1 = require("@ethereumjs/trie");
const ethereumjs_util_1 = require("ethereumjs-util");
const transaction_1 = require("../../lib/rlp/transaction");
const conversion_1 = require("../../lib/utils/conversion");
class TransactionTrie {
    constructor() {
        this.trie = new trie_1.Trie();
    }
    /**
     * Fetch the decoded data corresponding to a transactionIndex key from the trie
     * @param {string | number} key - transaction index (in hex string form or integer)
     * @returns {Promise<string[]>}
     */
    async get(key) {
        if (typeof key === 'number') {
            key = (0, conversion_1.hexify)(key);
        }
        const raw = await this.trie.get(ethereumjs_util_1.rlp.encode(key));
        const data = ethereumjs_util_1.rlp.decode(raw);
        return data.map((elem) => (0, conversion_1.hexify)(elem));
    }
    /**
     * Insert transaction into trie
     * @param {RawTransaction} tx - transaction body (must be signed - aka including v,r,s)
     * @returns {Promise<boolean>}
     */
    async put(tx) {
        try {
            const serialised = (0, transaction_1.serialiseTransaction)(tx);
            await this.trie.put(ethereumjs_util_1.rlp.encode(tx.transactionIndex), serialised);
            return true;
        }
        catch (err) {
            return false;
        }
    }
}
exports.default = TransactionTrie;