Lightweight Javascript DB for use in Node.js [closed]

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Anybody know of a lightweight yet durable database, written in Javascript, that can be used with Node.js.

I don't want the 'weight' of (great) solutions like Mongo or Couch. A simple, in memory JS database with the capability to persist to disk as a file would be enough. I would only use it to store small amounts of data.

Requirements:

• can run in process with a node.js server application
• can save the whole database to disk and recover after a failure
• NO need for atomic writes or transaction supports
• fast queries and sorting would be nice
• only needs to support small data volumes, up to 1MB in total

I've come across TAFFY db so far but it really doesn't seem optimized for use in Node.js. Anybody seen what I'm looking for out there?

Thanks

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I had the same requirements as you but couldn't find a suitable database. nStore was promising but the API was not nearly complete enough and not very coherent.

That's why I made NeDB, which a dependency-less embedded database for Node.js projects. You can use it with a simple require(), it is persistent, and its API is the most commonly used subset of the very well-known MongoDB API.

https://github.com/louischatriot/nedb

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Lokijs: A fast, in-memory document-oriented datastore for node.js, browser and cordova.

• In-memory Javascript Datastore wih Persistence
• In-Browser NoSQL db with syncing and persisting
• a Redis-style store an npm install away
• Persistable NoSQL db for Cordova
• Embeddable NoSQL db with Persistence for node-webkit

LokiJS to be the ideal solution:

• Mobile applications - especially HTML5 based (Cordova, Phonegap, etc.)
• Node.js embedded datastore for small-to-medium apps
• Embedded in desktop application with Node Webkit

https://github.com/techfort/LokiJS

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NeDB seems to be what you are looking for. From the blurb:

Embedded persistent database for Node.js, written in Javascript, with no dependency (except npm modules of course). You can think of it as a SQLite for Node.js projects, which can be used with a simple require statement. The API is a subset of MongoDB's. You can use it as a persistent or an in-memory only datastore.

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Take a look at http://www.tingodb.com. I believe it does what you looking for. Additionally it fully compatible with MongoDB API. This reduces implementation risks and gives you option to switch to heavy solution as your app grows.

https://github.com/sergeyksv/tingodb

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I'm only familiar with Mongo and Couch, but there's also one named Persistence.

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Try nStore, it seems like a nice key/value lightweight dembedded db for node. See https://github.com/creationix/nstore

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I had trouble with SQLite3, nStore and Alfred.

What works for me is node-dirty:

path = "#{__dirname}/data/messages.json"
messages = db path

message = 'text': 'Lorem ipsum dolor sit...'

messages.on "load", ->    
    messages.set 'my-unique-key', message, ->
        console.log messages.get('my-unique-key').text

    messages.forEach (key, value) ->
        console.log "Found key: #{key}, val: %j", value

messages.on "drain", ->
    console.log "Saved to #{path}"

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LevelUP aims to expose the features of LevelDB in a Node.js-friendly way.

https://github.com/rvagg/node-levelup

You can also look at UnQLite. with a node.js binding node-unqlite

https://github.com/symisc/unqlite

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Maybe you should try LocallyDB it's easy-to-use and lightweight in addition to the with advanced selecting system similar to javascript conditional expression...

https://github.com/btwael/locallydb

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UeberDB provides abstraction for various databases

https://github.com/pita/ueberDB

https://www.npmjs.org/package/ueberDB

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I wrote jaguarDb to handle some of the things that you are mentioning since I sometimes need a "little" database for demo or test projects too and I don't want to depend on mongoDB or another real database.

https://github.com/hectorcorrea/jaguarDb