@ocap/statedb-qldb/lib/table/account.js

OCAP statedb adapter that uses amazon qldb as backend statedb

const { ensureChecksumAddress } = require('@ocap/state/lib/states/account');
const debug = require('debug')(require('../../package.json').name);
const QLDBTable = require('./base');

class AccountTable extends QLDBTable {
  async _get(key, { traceMigration = true, txn } = {}) {
    const results = await txn.execute(
      `SELECT * FROM ${this.name} WHERE ${this.uniqIndex} = ?`,
      ensureChecksumAddress(key)
    );
    const current = results.getResultList().shift();
    if (current && traceMigration && Array.isArray(current.migratedTo) && current.migratedTo.length) {
      return this._get(current.migratedTo[0], { traceMigration: true, txn });
    }

    return current ? JSON.parse(JSON.stringify(current)) : null;
  }

  async _create(key, attrs, { txn }) {
    const data = { [this.uniqIndex]: key, ...attrs };
    data[this.uniqIndex] = ensureChecksumAddress(data[this.uniqIndex]);
    const result = await txn.execute(`INSERT INTO ${this.name} ?`, data);
    debug(`insert ${this.name}`, key, result.getResultList());
    return data;
  }
}

module.exports = AccountTable;