Not a Real DB

A "fake" database for Node.js that stores data in local JSON files, for testing and sample applications.

Usage

Create a DataStore instance specifying in which folder to store the data, then create a collections for each object type you want to store:

const { DataStore } = require('notarealdb');
 
const store = new DataStore('./data');
const apples = store.collection('apples');
const oranges = store.collection('oranges');

This will save apples in ./data/apples.json and oranges in ./data/oranges.json.

You can then manipulate each collection using the following CRUD operations:

// create a new item; returns a generated id
const id = apples.create({variety: 'Gala', weight: 133}); // => 'BJ4E9mQOG'
 
// list all items in a collection
apples.list(); // => [{id: 'BJ4E9mQOG', variety: 'Gala', weight: 133}]
 
// get a single item
apples.get('BJ4E9mQOG'); // => {id: 'BJ4E9mQOG', variety: 'Gala', weight: 133}
 
// update an item
apples.update({id: 'BJ4E9mQOG', variety: 'Braeburn', weight: 133});
 
// delete an item
apples.delete('BJ4E9mQOG');

That's it. All operations are synchronous.

Files are read at startup and written after each modification. You can manually edit a JSON file and provide some initial data, as long as you do that before you start the application.

Usage with TypeScript

If you use this module from TypeScript you can specify an interface representing the type of objects stored in each collection. E.g.

const { DataStore } = require('notarealdb');
 
interface Apple {
  id: string;
  variety: string;
  weight: number;
}
 
const store = new DataStore('./data');
const apples = store.collection<Apple>('apples'); // => apples: Collection<Apple>
apples.list(); // => Apple[]