@naturalcycles/db-lib/dist/adapter/file/inMemory.persistence.plugin.js

Lowest Common Denominator API to supported Databases

import { _by } from '@naturalcycles/js-lib/array/array.util.js';
/**
 * Mostly useful for testing.
 */
export class InMemoryPersistencePlugin {
    data = {};
    async ping() { }
    async getTables() {
        return Object.keys(this.data);
    }
    async loadFile(table) {
        return Object.values(this.data[table] || {});
    }
    async saveFiles(ops) {
        ops.forEach(op => {
            this.data[op.table] = _by(op.rows, r => r.id);
        });
    }
}