Exercise 1: Solution

In notebook:
FrontEndMasters API design
Created at:
2016-03-13
Updated:
2016-03-13
Tags:
backend JavaScript
File system read: async read.

In fact with Express you don't even need to read the file yourself, just use:
​res.sendFile(__dirname + '/index.html', function(err){...});​

set the status code :
​res.status(500).send(err)​ (though not recommended this example, 500 on an index page)
"Node style callbacks": first argument is err, second is a file buffer (for ​fileRead​)
To convert the buffer from ​fileRead​:
​var html = buffer.toString()​
  var express, app, jsonData, fs...

app.get('/', function(req,res){
    fs.readFile('index.html', function(err, buffer){
        var html = buffer.toString();
        res.setHeader('Content-Type', 'text/html');
        res.send(html);
    })
})

app.listen(3000)
- to stream the contents of the file?
- this example fires when the complete file is read (doesn't give more details)
How to restart NodeJS?
$ npm install -g nodemon
it will restart the server when do a change to a file and save it.