Express to generate JSON

Question

I am trying to pass a key value and generate a JSON response based on the key passed

Express Program

var express =         


        

Answer 1

try to refer the following links may help

http://book.mixu.net/ch10.html

http://expressjs.com/api.html

Answer 2

You have two handlers for the path /RestaurantDesc/ - only one should be kept.

In your query, the syntax is wrong.

Assuming you have a table that looks like this (change these names to match your schema):

Table Name: Restaurant
    column:       name

And you are using node-mysql, Change your query to something like this:

connection.query('SELECT * FROM Restaurant where name = ?', [keyName], function (err, rows, fields) {
    console.log('Connection result error ' + err);
    name_of_restaurants = rows;
    callback();
});

The ? is a place holder for values passed in the array of values passed in the second parameter to query.

See: Escaping query values for more information on how this works. Short answer though is that the values will be escaped properly using this approach.

Answer 3

The path that does what you want is /, not /RestaurantDesc/. Look at the first parameter to app.get().

Here's what I get with http://54.218.73.244:7004/

{
  "restaurants": [
    {
      "restaurantID": 1,
      "restaurantNAME": "CopperChimney",
      "url": "http://54.218.73.244:7002/CopperChimney"
    },
    {
      "restaurantID": 2,
      "restaurantNAME": "Aroy",
      "url": "http://54.218.73.244:7002/Aroy"
    },
    {
      "restaurantID": 3,
      "restaurantNAME": "MarkBoulevard",
      "url": "http://54.218.73.244:7002/MarkBoulevard"
    },
    {
      "restaurantID": 4,
      "restaurantNAME": "Indian",
      "url": "http://54.218.73.244:7002/Indian"
    }
  ],
  "RestaurantTimings": [
    {
      "_id": 1,
      "RestaurantTime": "8pm to 11pm"
    },
    {
      "_id": 2,
      "RestaurantTime": "10pm to 12pm"
    },
    {
      "_id": 3,
      "RestaurantTime": "11pm to 9pm"
    },
    {
      "_id": 4,
      "RestaurantTime": "10pm to 5pm"
    }
  ]
}