shrine-medco/shrine-webclient/src/main/html/node_modules/finalhandlerf571d119036dfeature/i2b2-merge-to…
README.md
finalhandler
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Node.js function to invoke as the final step to respond to HTTP request.
Installation
sh $ npm install finalhandler
API
js var finalhandler = require('finalhandler')
finalhandler(req, res, [options])
Returns function to be invoked as the final step for the given req and res. This function is to be invoked as fn(err). If err is falsy, the handler will write out a 404 response to the res. If it is truthy, an error response will be written out to the res, and res.statusCode is set from err.status.
The final handler will also unpipe anything from req when it is invoked.
options.env
By default, the environment is determined by NODE_ENV variable, but it can be overridden by this option.
options.onerror
Provide a function to be called with the err when it exists. Can be used for writing errors to a central location without excessive function generation. Called as onerror(err, req, res).
Examples
always 404
js var finalhandler = require('finalhandler') var http = require('http') var server = http.createServer(function (req, res) { var done = finalhandler(req, res) done() }) server.listen(3000)
perform simple action
js var finalhandler = require('finalhandler') var fs = require('fs') var http = require('http') var server = http.createServer(function (req, res) { var done = finalhandler(req, res) fs.readFile('index.html', function (err, buf) { if (err) return done(err) res.setHeader('Content-Type', 'text/html') res.end(buf) }) }) server.listen(3000)
use with middleware-style functions
js var finalhandler = require('finalhandler') var http = require('http') var serveStatic = require('serve-static') var serve = serveStatic('public') var server = http.createServer(function (req, res) { var done = finalhandler(req, res) serve(req, res, done) }) server.listen(3000)
keep log of all errors
js var finalhandler = require('finalhandler') var fs = require('fs') var http = require('http') var server = http.createServer(function (req, res) { var done = finalhandler(req, res, {onerror: logerror}) fs.readFile('index.html', function (err, buf) { if (err) return done(err) res.setHeader('Content-Type', 'text/html') res.end(buf) }) }) server.listen(3000) function logerror(err) { console.error(err.stack || err.toString()) }
License
The MIT License (MIT)
Copyright (c) 2014 Douglas Christopher Wilson
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.