json-patch-api

Provides an express middleware for a JSON store that supports real-time client updates using JSON-patch"

Installation

This module is installed via npm:

$ npm install json-patch-api

Basic Usage

var jsonPatchApi = require('json-patch-api');
 
var app = express();
var io = require('socket.io')(server);
 
app.use('/api', require('json-patch-api')(io));
 

Middleware Routes

PUT /api/NAME

Stores whatever application/json payload you send it and replaces the current document and returns JSON-PATCH commands that are needed to update the document.

GET /api/NAME

Returns the current JSON document stored at the api endpoint. And a header X-Last-Patched with the epoch time at which the last patch was applied.

GET /api/NAME/patches?after=TIMESTAMP

Returns a JSON struct which represents a sequence of JSON-PATCH operations which, if repeated sequentially would yield the current state of the document given a snapshot from time TIMESTAMP.

POST /api/NAME/patches

With a JSON-Patch payload will apply the patch to the current endpoint's state and broadcast it to all listening clients.

Clients

See http://www.github.com/allain/json-patch-api-client)