Assessing your Routing/AJAX Fu

• The purpose of this exercise is to get you used to being quizzed on Interview Questions commonly asked about Client Side Routing and making AJAX requests from a React application.
• Answers to your written questions will be recorded in Answers.md
• This is to be worked on alone but you can use outside resources. You can reference any old code you may have, and the React Documentation, however, please refrain from copying and pasting any of your answers. Try and understand the question and put your responses in your own words. Be as thorough as possible when explaining something.
• Just a friendly Reminder Don't fret or get anxious about this, this is a no-pressure assessment that is only going to help guide you here in the near future. This is NOT a pass/fail situation.

Start by forking and cloning this repository.

Questions - Self Study - You can exercise your Google-Fu for this and any other Sprint Challenge in the future.

1. Explain the differences between client-side routing and server-side routing.
2. What does HTTP stand for?
3. What does CRUD stand for?
4. Which HTTP methods can be mapped to the CRUD acronym that we use when interfacing with APIs/Servers.
5. Mention three tools we can use to make AJAX requests.

Initializing Project - READ THIS CAREFULLY, you have two apps here. A server, and a client.

• Start by Forking and Cloning this Repo.
• cd into the forked copy.
• RUN yarn install or npm install at the root to retrieve all the dependencies for the node server. You will not need to create any react apps here nor will you need to install any other dependencies. You should have all you need in this repo.
• LOOK at all the files you've been given for this project. One important file to note is server.js. This file contains an API that you are going to be interfacing with. Below is documentation on how to interact with the API.
• RUN yarn start or npm start to get your API up and running on http://localhost:3333. This is the URL you're going to need to use within your React app in order to make AJAX requests for data.
• After your API is up and running, you can open chrome and type in http://localhost:3333/smurfs. You should see an Array [] with a smurf returned to you. This is an array that your API will be using to store our Smurf Data.
• LOOK at your village directory and notice it's just a plain ol' React App that we've built using create-react-app.
• cd into village and run yarn install or npm install to retrieve the client side dependencies.
• RUN yarn start or npm start to fire up your React application, you should see an error that reads: TypeError: Cannot read property 'smurfs' of null.

Project Description

• The requirements for completion are that you are using AXIOS to GET a list of Smurfs that exist on the server && a POST to create a new Smurf and save it to the Smurf DB.
• You are to then work on adding a Router to this application by using React Router.
• If you get both of those two requirements finished early. Proceed to the STRETCH PROBLEM to try and implement a PUT.

API Design - This is how you'll interface with the API and what is required from every endpoint.

• Here is a list of smurf data you can use to create your village.

GET '/smurfs'

• To retreive an array all the smurfs in the Smurf DB simply write a get to the endpoint '/smurfs'

POST '/smurfs'

• To add a smurf to the Smurf DB you'll need all three fields.
• Example:

{
  name: 'Sleepy',
  age: 323,
  height: '5cm'
}

• If a smurf is created correctly, you should see a response that is an array of smurfs with unique id's assigned to each smurf.

Router

• Once you've finished your GET and POST requests go ahead and implement a Router for your components within this application.
  • You'll start by wrapping your root component in the Router component.
  • Then declare your routes with Route.
  • Then make it so you can navigate to your routes using Link.
• Create a home / route that mounts a Header component describing to a user that they are welcomed guests in the smurf village.
  • This header component should have a button/link that can take a user to a new page.
• Create a link that navigates a user into the village. This route /smurfs should mount the App component that will fetch your data, and display your Smurfs as well as your Smurf Form.

STRETCH PROBLEMS

HTTP/Axios Stretch Problems

• The following two endpoints are here for you if you'd like to push yourselves a little further.

• HINT if you are going to be working on Stretch Problem, you'll need to use that unique id.

DELETE '/smurfs/123', where 123 is the Id of the smurf you want to remove

• For this endpoint to work, all you need is an id sent up as part of the request url.

• If your delete worked, you'll get a list of the smurfs back.

• Example:

// output: `A list of all the smurfs in the Smurf DB will be returned`
[
    {
        "name": "Brainy",
        "age": 211,
        "height": "5cm",
        "id": 0
    },
    {
        "name": "Smurfette",
        "age": 122,
        "height": "12cm",
        "id": 1
    }
]

PUT '/smurfs/123', where 123 is the Id of the smurf you want to modify

• For this endpoint to work, you'll need an id added to the URL, and at least one field to update on the Smurf object. name age height.
• Example:

// input:
{
  id: 1,
  name: Sleepy
}
// output: `A list of all the smurfs in the Smurf DB will be returned`
[{
  name: 'Sleepy',
  age: 30,
  height: '3cm,
  id: 1
}]

Router Stretch Problem

• If a user clicks on a smurf, they should be routed to /smurf/:id and a single smurf should be displayed on the page.
• I know this seems like a small task, but you'll have to get crafty with your data and your logic here.