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mojoin

v0.0.9

Published

Join two or more collections of one or more MongoDB databases

Downloads

5

Readme

!!! DEVELOPMENT STAGE - DO NOT USE YET !!

Mongo Database Join

Mojoin is a tool to join multiple collections from multiple MongoDB databases.

What is that good for?

If you have one MongoDB containing multiple collection you can use the lookup to join collections that was released with version 3.4: https://docs.mongodb.com/manual/reference/operator/aggregation/lookup/ But if you have seperate MongoDB databases which is often the case in micro service or serverless world e.g. on seperate hosts you cannot use any MongoDB tooling to make joins. Besides often expensive and havy weight business inteligence systems there is less tooling availiable to help joining MongoDB databases.

Why Mojoin?

  • Lightwight and easy to get started
  • Simple querying language
  • Connect via SSH and directly over the mongodb protocol

Getting Started

Prerequisites

  • node.js >= 6.0.0
  • mogodb >= 3.0.0

UI

CLI

On the command line its highly reccomented to write the query in a JSON or even better YAML template file instead of typing it by hand in the commandline.

Using a key file mojoin -k /full/path/to/.ssh/keyfile -q templates/query.yml -f output/result.csv

Library

REST

Features

Install / Dependencies

Usage

CLI

Library

REST API

UI

Contribute

  1. clone master and checkout new branch --> e.g. fix/spacing
  2. Make changes/ fixes
  3. Run npm test to check that nothing broke
  4. Run npm lint and fix potential style issues
  5. create pull request to master