res.format.js — express Source File

Architecture documentation for res.format.js, a javascript file in the express codebase.

File javascript ExpressCore PrototypalExtension 1 functions

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ExpressCore→ PrototypalExtension→ res.format.js — express Source File

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Source Code

'use strict'

var after = require('after')
var express = require('../')
  , request = require('supertest')
  , assert = require('node:assert');

var app1 = express();

app1.use(function(req, res, next){
  res.format({
    'text/plain': function(){
      res.send('hey');
    },

    'text/html': function(){
      res.send('<p>hey</p>');
    },

    'application/json': function(a, b, c){
      assert(req === a)
      assert(res === b)
      assert(next === c)
      res.send({ message: 'hey' });
    }
  });
});

app1.use(function(err, req, res, next){
  if (!err.types) throw err;
  res.status(err.status)
  res.send('Supports: ' + err.types.join(', '))
})

var app2 = express();

app2.use(function(req, res, next){
  res.format({
    text: function(){ res.send('hey') },
    html: function(){ res.send('<p>hey</p>') },
    json: function(){ res.send({ message: 'hey' }) }
  });
});

app2.use(function(err, req, res, next){
  res.status(err.status)
  res.send('Supports: ' + err.types.join(', '))
})

var app3 = express();

app3.use(function(req, res, next){
  res.format({
    text: function(){ res.send('hey') },
    default: function (a, b, c) {
      assert(req === a)
      assert(res === b)
      assert(next === c)
      res.send('default')
    }
// ... (189 more lines)