Instant.db

Instant.db is used to create database using json files.

Quick Example

const { Database } = require('instant.db');

const db = new Database('./some_file.json'); // If file name not provided, this will use database.json as file

db.set('foo', 'bar'); // Sets value for the key
db.get('foo'); // Returns bar
db.exists('foo'); // Returns if the id is entried, returns true
db.typeof('foo'); // Returns string. The typeof data!

db.all(); // Returns [{ ID: 'foo', data: 'bar' }]
db.raw(); // Returns raw data { foo: 'bar' }
db.random(); // Returns a random dataset!
db.random(4); // Returns array of 4 random datasets!

db.keys; // Getter which returns the array of id's ['foo']
db.values; // Getter which returns the array of data's ['bar']
db.cache; // Returns the map key value!
db.entries; // Returns the number of entries!

db.set('foo', ['foo']);
db.push('foo', 'bar', 'baz'); // -> ['foo', 'bar', 'baz'];
db.pull('foo', 'foo', 'bar'); // -> ['baz']

db.set('foo', 0);
db.math('foo', '+', 100); // -> 100
db.math('foo', '-', 100); // -> 0
db.math('foo', '*', 100); // -> 0
db.math('foo', '/', 100); // -> 0
db.math('foo', '**', 100); // -> 0
db.add('foo', 100); // -> 100
db.subtract('foo', 100); // -> 0

db.delete('foo'); // Will delete the foo value!
db.filter((data, id) => id == 'foo'); // Similar to Array.filter but will clear from the database too!
db.clear(); // Clears everything

Typescript

Has typescript support too!

import Database from 'instant.db';

const db = new Database<string>();

db.set('foo', 'bar');
console.log(db.get('foo'));

Database actions

DatabaseAction is a class which is a fake database where you can execute your methods without affecting the main database itself and save it later whenever you want!

const action = db.action();

action.set('foo', 'bar'); // You are setting the value foo as bar in the cache!
console.log(db.get('foo')); // Prints "null" as its still on cache

action.save(); // Now it saves the data from cache to the database
console.log(db.get('foo')); // Prints "bar"!

action.undo(); // Back to the state of database when th action was initiated!
console.log(db.get('foo')); // Returns "null"!

Unlike Database class, DatabaseAction has less methods!

action.set('foo', 'bar'); // Sets value for the key
action.get('foo'); // Returns bar

action.all(); // Returns [{ ID: 'foo', data: 'bar' }]
action.raw(); // Returns raw data { foo: 'bar' }

action.keys; // Getter which returns the array of id's ['foo']
action.values; // Getter which returns the array of data's ['bar']
action.cache; // Returns the map key value!
action.entries; // Returns the number of entries!

action.set('foo', ['foo']);
action.push('foo', 'bar', 'baz'); // -> ['foo', 'bar', 'baz'];
action.pull('foo', 'foo', 'bar'); // -> ['baz']

action.set('foo', 0);
action.math('foo', '+', 100); // -> 100
action.math('foo', '-', 100); // -> 0
action.math('foo', '*', 100); // -> 0
action.math('foo', '/', 100); // -> 0
action.math('foo', '**', 100); // -> 0

action.delete('foo'); // Will delete the foo value!
action.filter((data, id) => id == 'foo'); // Similar to Array.filter but will clear from the database too!

Documents

Documents are nothing but the same database but storing objects instead of just key:value type. For example view the following example:

Database

How normal Database class stores!

{ "foo": "bar" }

Document

How normal Document class stores!

[
    {
        "custom_field": "foo",
        "custom_field_2": "bar"
    }
]

Here is an example of using the Document class!

const { Document } = require('instant.db');
const doc = new Document('./document.json');

doc.insert({
    custom_field: "foo",
    custom_field_2: "bar"
}) // Insert a new object to the db

doc.findOne({
    custom_field: "foo"
}) // Will return `{ custom_field: "foo", custom_field_2: "bar" }`

Document findOne uses a Object query or a callback here is an example below!

doc.insert({ foo: 'bar' });

doc.findOne({ foo: 'bar', bar: 'baz' }); // Will return `{ foo: 'bar' }` even though `bar` field does not exists in it as it finds any object in the document which has the same value in the field!
doc.findOne(obj => obj.foo == 'bar'); // You can also use callbacks to use `findOne` which acts same as Array.prototype.find!

Methods of the Document class!

doc.size // Returns the number of entries in the document!

doc.insert({ foo: 'bar' }); // Inserts object to the document
doc.raw(); // Returns the raw data of the file!
doc.getAll(); // Aliases for get raw method!

doc.findOne({ foo: 'bar', bar: 'baz' }); // Searches a dataset in the document with query or callback
doc.findMany({ foo: 'bar', bar: 'baz' }); // Returns an array of datasets in the document which maches the query or callback

doc.deleteOne({ foo: 'bar', bar: 'baz' }); // Searches a dataset in the document with query or callback and deletes it from the document!
doc.deleteMany({ foo: 'bar', bar: 'baz' }); // Searches all the datasets in the document which maches the query or callback and deletes it

doc.clear(); // Clears all the data in the document!

Support

Discord Server: https://discord.gg/FrduEZd GitHub: https://github.com/Scientific-Guy/instant.db

If any doubts, join our discord server and ask your doubts or just make an issues in our github repo!

scientific-dev / instant.db