MangoDB

MangoDB is set out to become the de-facto open-source alternative to MongoDB. MangoDB is an open-source proxy, which converts MongoDB wire protocol queries to SQL, and uses PostgreSQL as a database engine.

Why do we need MangoDB?

MongoDB is a life-changing technology for many developers, empowering them to build applications faster than using relational databases. Its easy-to-use and well-documented drivers make MongoDB one of the easiest to use database solutions available. However, MongoDB abandoned its open-source roots, changing the license to SSPL - making it unusable for many open source and commercial projects.

Most MongoDB users are not in need of many of the advanced features offered by MongoDB; however, they are in need of an open-source database solution. Recognizing this, MangoDB is here to fill the gap by providing an alternative.

Scope

MangoDB will be compatible with MongoDB drivers and will work as a drop-in replacement for MongoDB in many cases.

Current state

What you see here is a tech demo intended to show a proof of concept. Over the next couple of months, we will be working on adding more. See this example for a short demonstration.

MangoDB is in a very early stage and welcomes all contributors. See CONTRIBUTING.md.

Quickstart

Those steps describe a quick local setup. They are not suitable for production use.

1. Store the following in the docker-compose.yml file:

version: "3"

services:
  postgres:
    image: postgres:14
    container_name: postgres
    ports:
      - 5432:5432
    environment:
      - POSTGRES_USER=user
      - POSTGRES_DB=mangodb
      - POSTGRES_HOST_AUTH_METHOD=trust

  postgres_setup:
    image: postgres:14
    restart: on-failure
    entrypoint: ["sh", "-c", "psql -h postgres -U user -d mangodb -c 'CREATE SCHEMA IF NOT EXISTS test'"]

  mangodb:
    image: ghcr.io/mangodb-io/mangodb:latest
    container_name: mangodb
    ports:
      - 27017:27017
    command: ["--listen-addr=:27017", "--postgresql-url=postgres://user@postgres:5432/mangodb"]

• postgres container runs PostgreSQL 14 that would store data.
• postgres_setup container creates a PostgreSQL schema test that would act like a MangoDB database of the same name.
• mangodb runs MangoDB.

2. Start services with docker-compose up -d.

3. If you have mongosh installed, just run it to connect to MangoDB database test. If not, run the following command to run mongosh inside the temporary MongoDB container, attaching to the same Docker network:

docker run --rm -it --network=mangodb_default --entrypoint=mongosh mongo:5 mongodb://mangodb/

Contact us

Visit us at www.mangodb.io, get in touch, and sign up for updates on the project.