Node Duplicate Req

A lightweight api side duplicate check

Installation

npm install node-duplicate-req

Requirements

In order for it to work it must be placed after request body parser. Redis must be installed

Usage

First require package and instantiate it with redisClient

var dupCheck = require('node-duplicate-req')( redisClient );

You can also pass in an options object at instantiation for shared options between all middleware.

NOTE: if no options are passed defaults will be used.

var dupCheck = require('node-duplicate-req')( redisClient, { keyProperty: 'req.user.id', ttl: 30 } );

Then create the middleware you want to use, here you can also pass in an options object that will only be used for this specific endpoint.

var userDupCheckMiddleware = dupCheck.middleware( { prefix: 'users-', ignoreProperties: [ 'user.age', 'user.notes'] } );
var users = require('../controllers/users');
server.post( '/users', dupCheckMiddleware, users.create );

Or create middleware without options, Defaults are at the bottom of the readme

var dupCheckMiddleware = dupCheck.middleware();

Optional (Custom Request Override Header):

• 'x-override-dupcheck' : if on the request object, will override the function, allowing the request to skip the duplicate checking process all together options