Question

I would like to know if a pure node.js web app can be developed, which means very simple deployment. From my understanding since node.js is good at i/o, a database in node.js should be good too. Does one exist? Especially one that lives in RAM and occasionally persists to disk.

Answer 1

First of I don’t see the problem in installing redis or mongodb. It can be done without any effort at all.

That said there are a number of such databases like:

• ministore: save at specified intervals.
• alfred: Reads are fast because indexes into files are kept in memory.
• nStore: Also a index of all documents and their exact location on the disk is stored in in memory for fast reads of any document.
• jsonds: Jsonds is a ‘data store’ which is just a JSON object which is written to disk at a set frequency.
• supermarket
• chaos
• node-dirty
• node-tiny
• nedb: Embedded pure JS database with MongoDB-compatible API.

Also most of these product are very young and should probably not be used in production yet.

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You could also code something yourself I assume using node-sqlite3 to store data back to disc.