w3_1_REST_API_EMM

REST API with Express, MongoDB and Mongoose
-------------------------------------------------
Any Request coming into the REST server on any of the REST endpoint would entail a corresponding operation on the MongoDB,
either to fetch data, or save data , update the existing data, or delete data on the database server;

Full-Fledged REST API Server
---------------------------------
-> Able to interact with the MongoDB database with our express server;

             |          |
             |          |
             |  Server  |                               |         |
             | REST API |                               | Database|
             |          |                               |         |
             |          |

******GET***>                   ****QUERY*****>
////POST////>                    ///CREATE/////>


HTTP REQUEST to Database Operation Mapping
---------------------------------------------
-> Every incoming request needs to be decoded to decide the nature of the request:
* GET, PUT, POST, DELETE;
* Resource affected;
* Data in body of request;

-> Translate request to an equivalent database operation;

Express Router + MongoDB + Mongoose
-------------------------------------
The express server is created using the express router to support the various REST API operations;
Each method to the server will trigger a corresponding MONgoDB request;

Router(). route('/uri')        | Mongoose Schema + MongoDB
.get(                          |
-------------------------------|->  Dishes.find({},  );
)                              |
                               |
.post(                         |
-------------------------------|->  Dishes.create(   ) 
)                              | 
 
 ..........
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