node-json-db

import { JsonDB, Config, DataError } from "node-json-db"; import * as fs from 'fs'; // For cleanup async function runExample() { const dbFileName = "myQuickstartDatabase"; const dbFilePath = `${dbFileName}.json`; // Clean up previous run if exists if (fs.existsSync(dbFilePath)) { fs.unlinkSync(dbFilePath); } // Initialize JsonDB with a Config object // Arguments: filename, autoSave (true), humanReadable (false), separator ('/'), syncWrites (false) const db = new JsonDB(new Config(dbFileName, true, false, "/", false)); console.log("Database initialized."); // Push simple string data to a path await db.push("/user/name", "Alice Wonderland"); console.log("Pushed /user/name: Alice Wonderland"); // Push an object, creating hierarchy if needed await db.push("/settings", { theme: "dark", notifications: true }); console.log("Pushed /settings: { theme: 'dark', notifications: true }"); // Merge new data into an existing object path (third argument 'false' for merge) await db.push( "/settings", { notifications: false, language: "en-US" }, false ); console.log("Merged into /settings: { notifications: false, language: 'en-US' }"); console.log("Current /settings:", await db.getData("/settings")); // Get data from a specific path const userName = await db.getData("/user/name"); console.log("Retrieved /user/name:", userName); // Attempt to get data from a non-existent path and catch the expected error try { await db.getData("/nonexistent/path"); } catch (error) { if (error instanceof DataError) { console.error(`Caught expected error for non-existent path: ${error.message}`); } else { console.error("Caught unexpected error:", error); } } // Get the entire database content const fullData = await db.getData("/"); console.log("Full database content:\n", JSON.stringify(fullData, null, 2)); console.log("\nQuickstart example finished."); } runExample().catch(console.error);