Fresh Harvest Fruits Router 🍓

A local farmer has hired you to design and build the routing for a website that will support their growing business: Fresh Harvest Fruits.

They already have their fruit and user data created and want you to create the routes to serve up the data based on the route.

Part 1: Build the Server and Router

The farmer has tasked you with completing the following to get the server and routes up and running.

users.js Router

1. In users.js, define an Express router for the users route. This will handle any requests to the /users endpoint.
2. Get all the users in the list of users when using the GET /users route.
3. Get a particular user in the list of users when using the GET /users/:id route (e.g GET /users/2 returns the 2nd user).
4. Create a POST /users route that creates a new user in the database.
5. Create a PUT /users/:id route that updates the database entry that corresponds to the provided id (e.g. PUT /users/2 updates the 2nd user).
6. Create a DELETE /users/:id route that deletes the database entry that corresponds to the provided id (e.g. `DELETE users/2 deletes the 2nd user).
7. Export the users router, import the router to src/app.js, and setup the the router within your main Express server.
8. Test your endpoints using Postman.
9. In index.test.js, create unit tests for the functionality that you constructed above.

fruits.js Router

1. In fruits.js, define an Express router for the fruits route. This will handle any requests to the /fruits endpoint.
2. Get all the fruits in the list of fruits when using the GET /fruits route.
3. Get a particular fruit in the list of fruits when using the GET /fruit/:id route (e.g GET /fruits/2 returns the 2nd fruit).
4. Create a POST /fruit route that creates a new fruit in the database.
5. Create a PUT /fruits/:id route that updates the database entry that corresponds to the provided id (e.g. PUT /fruits/2 updates the 2nd fruit).
6. Create a DELETE /fruits/:id route that deletes the database entry that corresponds to the provided id (e.g. `DELETE fruits/2 deletes the 2nd fruit).
7. Export the fruits router, import the router to src/app.js, and setup the the router within your main Express server.
8. Test your endpoints using Postman.
9. In index.test.js, create unit tests for the functionality that you constructed above.

Part 2: Express Validator

The farmer is so happy with your work! Apply server-side validation to your API to ensure that:

• You cannot create a user without a name
• You cannot create a fruit without a color

1. Run npm install to install the necessary dependencies for this assignment.
2. Require the “express-validator” package in your users router.
3. Import both the check and validationResult functions from the Express Validator package.
4. In the POST request when creating a user, include a parameter in between your endpoint and your callback function. This parameter should check for the “name” field in the request body. The name field in the request body should NOT BE EMPTY or be just whitespace.
5. Validate the result of your request object, and store that reference in a variable named errors.
6. Create a condition that checks if there are errors caught in the validation result, respond with the JSON which contains:
   • A key named error
   • A value containing the list of errors caught
   • In any other case, respond with the list of all the users including the newly added user
7. In the POST request when creating a fruit, include a parameter in between your endpoint and your callback function. This parameter should check for the “color” field in the request body. The color field in the request body should NOT BE EMPTY or be just whitespace.
8. Validate the result of your request object, and store that reference in a variable named errors.
9. Create a condition that checks if there are errors caught in the validation result, respond with the JSON which contains:
   • A key named error
   • A value containing the list of errors caught
   • In any other case, respond with the list of all the users including the newly added user
10. Test your endpoints using Postman. Try to add a user without a name or a fruit without a color.
11. In index.test.js, create unit tests for the functionality that you constructed above.

Extension Problems 🚀

1. For the POST /users route within the array [], include a second item that checks that the "age" in the request.body is not empty and doesn’t only contain whitespace.
2. For the POST /fruits route within the array [], include a second item that checks that the "name" in the request.body is not empty and doesn’t only contain whitespace.
3. Update the PUT /users/:id and PUT fruits/:id routes with server side validation like you did for the POST routes.
4. Within the same POST /users route, use Express Validator to check that the value added to the "name" field has a length between 5 and 15 characters.
5. Within the same POST /fruits route, use Express Validator to check that the value added to the "name" field has a length between 5 and 20 characters.