denchistyakov/memorize-middleware

Cache middleware req changes

memorize-middleware

Save changes, that middleware did on req and apply them after

Usage

var express = require('express');
var app = express();
var memorize = require('memorize-middleware');

var middleware = function (req, res, next) {
    console.log('Called once');
    req.message = 'Boop!';
};

app.use(memorize(middleware));
app.get('/', function (req, res, next) {
    res.send(req.message);
});

app.listen(8080);

API

memorize([options], middleware)

Creates middleware, that will call middleware and cache changes, that it did to req object.

middleware

Type: Function

Middleware, which changes should be cached.

options

hotStart

Type: Boolean
Default: false

If enabled, middleware will be executed on startup, instead of be executed on first request.

updateInterval

Type: Number
Default: 0 — never

How often (in milliseconds) should memorize request new data for middleware. Don't make it too low.

breakOnError

Type: Boolean
Default: false

Should client be notified (next callback called) when error is occured, while updating cache. Otherwise errors will be ignored and memorize will try to update cache again.

License

The MIT License (MIT) © Vsevolod Strukchinsky