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Package detail

ware

segmentio474.8kMIT1.3.0

Easily create your own middleware layer.

compose, connect, express, layer, middleware

readme

ware

Easily create your own middleware layer.

Build Status

Installation

Node:

$ npm install ware

Component:

$ component install segmentio/ware

Duo:

var ware = require('segmentio/ware');

Example

var ware = require('ware');
var middleware = ware()
  .use(function (req, res, next) {
    res.x = 'hello';
    next();
  })
  .use(function (req, res, next) {
    res.y = 'world';
    next();
  });

middleware.run({}, {}, function (err, req, res) {
  res.x; // "hello"
  res.y; // "world"
});

Give it any number of arguments:

var ware = require('ware');
var middleware = ware()
  .use(function (a, b, c, next) {
    console.log(a, b, c);
    next();
  })

middleware.run(1, 2, 3); // 1, 2, 3

Supports generators (on the server):

var ware = require('ware');
var middleware = ware()
  .use(function (obj) {
    obj.url = 'http://google.com';
  })
  .use(function *(obj) {
    obj.src = yield http.get(obj.url);
  })

middleware.run({ url: 'http://facebook.com' }, function(err, obj) {
  if (err) throw err;
  obj.src // "obj.url" source
});

API

ware()

Create a new list of middleware.

.use(fn)

Push a middleware fn onto the list. fn can be a synchronous, asynchronous, or generator function. fn can also be an array of functions or an instance of Ware.

.run(input..., [callback])

Runs the middleware functions with input... and optionally calls callback(err, input...).

License

(The MIT License)

Copyright (c) 2013 Segment.io <friends@segment.io>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

changelog

1.3.0 - April 30, 2015

  • throw on errors without a done callback
  • add files to package.json

1.2.0 - September 25, 2014

  • move co to devDependencies
  • add client-side support

1.1.0 - September 19, 2014

  • refactor to use wrap-fn

1.0.1 - August 26, 2014

  • add support for passing an array of ware instances

1.0.0 - August 26, 2014

  • add support for sync middleware
  • add support for generators
  • remove support for error middleware with arity

0.3.0 - April 24, 2014

  • let use accept arrays
  • let use accept Ware instances
  • allow passing fns to the constructor

0.2.2 - March 18, 2013

  • moving to settimeout to fix dom validation issues
  • add travis

0.2.1 - December 12, 2013

  • fix skipping error handlers without error

0.2.0 - October 18, 2013

  • rewrite:
    • handle any amount of input arguments
    • allow multiple error handlers
    • only call error handlers after the error is next'd
    • make passing callback optional
    • rename end to run since it can happen multiple times

0.1.0 - July 29, 2013

  • updating api

0.0.1 - July 29, 2013

  • first commit