PoloDB is an embedded document database.

| Documentations |

Introduction

PoloDB is a library written in Rust that implements a lightweight MongoDB.

Why

PoloDB aims to offer a modern alternative to SQLite, which is currently the almost exclusive option for client-side data storage. Although SQLite is an old and stable software, it lacks some modern features. That's why we developed PoloDB, which is NoSQL, supports multi-threading and multi-sessions, and retains the embedded and lightweight features of SQLite.

Features

• Simple and Lightweight
• can be embedded library or a standalone server
• Easy to learn and use
• NoSQL
• MongoDB-like API
• Cross-Platform

Quick start

PoloDB is easy to learn and use:

use polodb_core::Database;
use serde::{Serialize, Deserialize};

#[derive(Debug, Serialize, Deserialize)]
struct Book {
    title: String,
    author: String,
}

let db = Database::open_path(db_path)?;
let collection = db.collection::<Book>("books");
collection.insert_one(Book {
    title: "The Three-Body Problem".to_string(),
    author: "Liu Cixin".to_string(),
})?;

Packages

• polodb: The standalone server of PoloDB, which is compatible with MongoDB's wire protocol.
• polodb_core: The core library of PoloDB, which can be embedded in your application.

Platform

Theoretically, PoloDB supports all platforms that the Rust compiler supports. But PoloDB is a personal project currently. Limited by my time, I have only compiled and tested on the following platforms:

• macOS Big Sur x64
• Linux x64 (Tested on Fedora 32)
• Windows 10 x64

Manual

• Documentations
• Rust

Roadmap

The features will be implemented one by one in order.

• [x] Basic database API
• [x] CRUD
• [x] Transactions
• [x] Serde
• [x] Indexes(Alpha)
• [x] Aggregation(Alpha)
• [x] Command line Tools
• [ ] Platforms
• [x] MacOS
• [x] Linux
• [x] Windows
• [ ] iOS
• [ ] Android
• [ ] Languages
• [ ] Python
• [ ] JavaScript