libj-db

Part of libj tools

Contains a wrapper around store library.

Usage (npm)

npm install libj-db

import { db } from 'libj-db'
db.set('key', 'value')
db.get('key') // returns 'value'
.
.
.

Test

• Run this in a separate command line to start node server

node server.js

• Run one of the following to re-create bundles

npm run dev
npm run dev:watch

• Navigate to http://localhost:3000

Build

npm run build
npm run build:watch

Make sure to test everything in all browsers (specially IE 10/11)

Source:

const store = require('store');
/**
 * A wrapper around "store" npm package to work with database in browser
 */
export default class Database {
    /**
     * Sets a value in the database
     * @param {String} key : key for entry
     * @param {Object} value : value for entry
     */
    set(key, value) {
        return store.set(key, value);
    }
    /**
     * Gets a value from the database
     * @param {String} key : key of entry
     * @param {Object} seed : a seed value for the entry's value if entry does not exist. Pass null or undefined to ignore seeding
     */
    get(key, seed) {
        if (seed !== undefined && seed !== null) {
            var i = this.all().findIndex(function (item, index, array) {
                return item.key === key;
            });
            if (i < 0) {
                this.set(key, seed);
            }
        }
        return store.get(key);
    }
    /**
     * Removes an entry from database with the given key
     * @param {String} key : key of entry
     */
    remove(key) {
        store.remove(key);
    }
    /**
     * Clears the whole database
     */
    clear() {
        store.clearAll();
    }
    /**
     * @returns array of {key, value} of all key-value pairs in database
     */
    all() {
        var res = [];
        store.each((value, key) => {
            res.push({
                key: key,
                value: value
            });
        });
        return res;
    }
}