Assignment Instructions

Assignment%20Instructions

Assignment%20Instructions

Assignment%20Instructions

User Manual:

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Peer-graded Assignment: Backend as a Service

1. Instructions

2. My submission

3. Discussions

In this assignment, you will be extending the router to support the ability to save and retrieve a

list of favorite dishes by each of the registered users. All registered users in the system should

have the ability to save any dish as their favorite dish, retrieve all their favorite dishes and

remove one or all their favorite dishes.

Step-By-Step Assignment Instructions

Assignment Overview

At the end of this assignment, your should have completed the following:

• Allowed users to select a dish as their favorite, and add it to the list of favorites that are

saved on the server.

• Allowed users to retrieve the list of their favorite dishes from the server

• Delete one or all of their favorite dishes from their favorites list on the server.

Assignment Resources

db.json

Assignment Requirements

In this assignment, you will be supporting a new route https://localhost:3443/favorites, where the

users can do a GET to retrieve all their favorite dishes, a POST to add a list of dishes to their

favorites, and a DELETE to delete the list of their favorites. In addition, you will support the new

route https://localhost:3443/favorites/:dishId where the users can issue a POST request to add the

dish to their list of favorite dishes, and a DELETE request to delete the specific dish from the list

of their favorite dishes.

This assignment consists of the following three tasks:

Task 1

In this task you will be implementing a new Mongoose schema named favoriteSchema, and a

model named Favorites in the file named favorite.js in the models folder. This schema should

take advantage of the mongoose population support to populate the information about the user

and the list of dishes when the user does a GET operation.

Task 2

In this task, you will implement the Express router() for the '/favorites' URI such that you support

GET, POST and DELETE operations

• When the user does a GET operation on '/favorites', you will populate the user

information and the dishes information before returning the favorites to the user.

• When the user does a POST operation on '/favorites' by including [{"_id":"dish

ObjectId"}, . . ., {"_id":"dish ObjectId"}] in the body of the message, you will (a) create a

favorite document if such a document corresponding to this user does not already exist in

the system, (b) add the dishes specified in the body of the message to the list of favorite

dishes for the user, if the dishes do not already exists in the list of favorites.

• When the user performs a DELETE operation on '/favorites', you will delete the list of

favorites corresponding to the user, by deleting the favorite document corresponding to

this user from the collection.

• When the user performs a POST operation on '/favorites/:dishId', then you will add the

specified dish to the list of the user's list of favorite dishes, if the dish is not already in the

list of favorite dishes.

• When the user performs a DELETE operation on '/favorites/:dishId', then you will

remove the specified dish from the list of the user's list of favorite dishes.

Task 3

You will update app.js to support the new '/favorites' route.

Review criteria

Your assignment will be graded on the basis of the following review criteria:

• A new favoriteSchema and Favorites model has been correctly implemented to take

advantage of Mongoose Population support to track the users and the list of favorite

dishes using their ObjectIds in the favoriteSchema and Favorites model.

• The GET, POST and DELETE operations are well supported as per the specifications

above

• The app.js has been updated to support the new route.