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nodejs-EventStore

Event Store is "an awesome, rock-solid, super-fast persistence engine for event-sourced applications."

It has HTTP and TCP client interfaces -- this project implements the TCP interface in Node.js in an async fashion.

Project status

Very early stage. Only a subset of the TCP API is implemented. But you can create streams of events and read them back, so the most important functionality is in!

Usage

Installing:

npm install git://github.com/kenpratt/nodejs-EventStore.git

Connecting:

var EventStore = require("nodejs-EventStore");
var es = EventStore.connect(host, port);

Creating an event stream:

es.createStream(stream, cb);

Appending to a stream (callback passed error and firstEventNumber):

es.appendToStream(stream, [expectedVersion,] events, cb);

Creating an event (shortcut for appending a single event):

es.createEvent(stream, eventType, data, metaData, cb);

Subscribing to a stream:

es.subscribeToStream(stream, [resolveLinkTos,] cb, droppedCb);

Reading a stream:

es.readStreamEventsForward(stream,start,max,cb);
es.readStreamEventsBackward(stream,start,max,cb);

Reading & subscribing to an event stream (callback will be called for each existing event in the stream, and for each event added in the future):

es.readAndSubscribeToStream(stream, cb);

Dependencies

Development dependencies

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  • JavaScript 99.6%
  • Shell 0.4%