doubledb is a powerful on-disk database designed for efficient and fast indexing, facilitating quick data retrieval. With a seamless API, doubledb allows you to perform complex queries and manage your data effortlessly.

Key Features

• Fast Indexing: Get the speed and efficiency you need for real-time data access.
• Comprehensive Querying: Utilize a variety of methods to insert, find, filter, and query your records with simplicity.

Usage Example

To get started, you can create an instance of doubledb and begin inserting data. Here’s a quick example of how to use doubledb:

import createDoubledb from 'doubledb';
const doubledb = await createDoubledb('./data');

// Inserting a record
const record = await doubledb.insert({
  id: undefined, // Automatically generates a unique identifier
  firstName: 'Joe',
  lastName: 'Bloggs',
  stats: { wins: 10, loses: 5 },
  skills: ['cooking', 'running']
});

// Retrieving a record by its id
const retrievedRecord = await doubledb.get(record.id);

// Finding a record by field value
const foundRecord = await doubledb.find('firstName', 'Joe');

// Filtering records
const filteredRecords = await doubledb.filter('skills', v => v.includes('cooking'));

Advanced Querying

With doubledb, you have the ability to utilize complex queries for advanced data retrieval. Here’s how to use a query object:

const records = await doubledb.query({
  age: { $gte: 18, $lt: 30 },
  status: { $in: ['active', 'pending'] },
  $or: [
    { role: { $eq: 'admin' } },
    { role: { $eq: 'user' } }
  ]
});

Supported Operators

When using the query method, you can enhance queries with several operators, including:

• $eq: Equal to a value.
• $ne: Not equal to a value.
• $gt / $gte: Greater than / greater than or equal to.
• $lt / $lte: Less than / less than or equal to.
• $in / $nin: Value is in / not in the provided array.

Boost your development with doubledb and experience the kind of performance and flexibility that makes data management simple and effective.