joyumoekpo/back-end-2-lab-exercise

In today's lab you will continue to practice building our servers by handling GET, PUT, POST, and DELETE.

Back End 2

In today's lab you will continue to practice building our servers by handling GET, PUT, POST, and DELETE.

For todays lab you will be building a realty application. Your application should be able to add a new house, including an address, a price, and an image url. You should be able to see all the houses in the database, as well as edit the prices (+- $10,000). You should also be able to delete houses from the database.

Attempt to build out the application by following the instructions below. If you are stuck, take a look at the solution code and see if you can work out what is going on. If you cannot, make sure to reach out in the queue.

Instructions

Part 1 - Setup

1. In your server folder, create a file called index.js.

2. Setup the basic functionality of your index.js file (express, cors, json, app.listen).

3. Create another file called controller.js and set a module up with the following function signatures: getHouses, deleteHouse, createHouse, updateHouse.

Part 2 - Setting Up Endpoints

1. Create a variable that requires your controller file.

2. Setup an endpoint to get all houses, making sure to call you controllers getHouses function.

3. Setup an endpoint to create a house, making sure to call you controllers createHouse function.

4. Setup an endpoint to update a house, making sure to call you controllers updateHouse function. Note: It should require an id param in order to allow for you to update the correct house.

5. Setup an endpoint to delete a house, making sure to call you controllers deleteHouse function. Note: It should require an id param in order to allow for you to delete the correct house.

Part 3 - Adding Enpoint Functionality

1. Outside of module.exports, create a variable that requires your db.

2. Outside of module.exports, create a variable to keep track of your upcoming house id, and set it equal to 4 (we already have 3 houses in the database with id’s 1, 2, and 3).

3. Build out the functionality of your getHouses function. It should send all the houses in the houses database to the front-end.

4. Build out the functionality of your deleteHouse function. It should find the index of the house in the houses database whose id correlates to the id passed in as a parameter on your endpoint (I reccomend you use the findIndex method). Once you have the index, you can delete that house from the database using the splice method. Once done, send the remaining houses to the front-end so that the view can be updated.

5. Build out the funtionality of your createHouse function. It should create a new house object with the following properties: id, address, price, and imageURL. All of those values should come from req.body, except for id, which will come from the variable you created above to keep track of your upcoming house id. Once you have created the new house object, add it to your houses database using the push method. Then send all your houses to the front-end so that the view can be updated to include your new house. Don’t forget to increment your varibale tracking your upcoming house id.

6. Build out the functionality for your updateHouse function. It should capture the id from your endpoints params so that you know which house to update. It should also capture type off of req.body. Type is a string and could either be ‘plus’ or ‘minus’. Next, find the index of your house in the houses array by iterating through the houses array and locating the house with the correct id (I reccomend the findIndex method). Once you have the index of the house you should be updating, use a sequce of conditional checks to see if the type is ‘minus’ or ‘plus’, and then decrease or increase the price of the hosue by $10,000. Once complete, send all the houses to the front-end so you can update the views.