OpenFoods

👋 Hi! Welcome to your iOS coding excercise.

This is a very simple application. We should have provided you with a unique URL for the API, this is just for you. You are asked to write the app that will display a list of foods from the API. The API also allows you to like and unlike foods.

Minimum requirement

Fork or clone the repo
Parse the list of foods.
Display the foods in the order the service defines them. The app should display:
- The name of the food.
- The description of the food, this is variable length so the cells must be properly sized to the content or this can be truncated and the full description can be shown on another screen the user navigates to.
- The country of origin, this could be the text, an emoji, an image or something else.
- Do you like this food. This should be an image or a symbol of some kind.
Handle any errors or slow requests gracefully.
When done, send a pull request to this project or zip via email.

Keep in mind that the repo is public, so forking and sending a pull request will be shown in your public GitHub activity. If that doesn't work out for you for whatever reason, you can simply clone the repo locally, and submit your work back as a zip file to the recruiter/hiring manager.

You may use UIKit or SwiftUI for this exercise. The provided template uses UIKit, but if you would like to use SwiftUI, it may be simpler to create a new xcode project and submit that instead.

Bonuses (in no particular order)

Add a button to like or unlike a food and then reload the list of foods.
Show the image of the food. (Feel free to use AFNetworking/AlamoFire or just use NSURLSession for that.)
Show when the food was last updated.
Animate or highlight a food when it is selected (e.g. make it "bigger", in an animated fashion.)
Add tests.
Anything else you might think of that showcases a UIKit feature: UIDynamics, parallax effect, the list is endless.

What the assignment will be judged on

Accuracy of the result (e.g. is the cell sizing pixel perfect, dates are properly formatted, the app doesn't crash, project builds and runs with no extra step, etc.)
Proper usage of UIKit apis (e.g. are cells properly reused, a back button must have a proper title, how well does it scale to various device sizes, etc.)
Overall code quality: clarity, conciseness, quality of comments. Robustness and maintainability matter a lot more than clever one liners.
If you end up short on time and/or can't fix a specific bug or finish a given feature, update this readme with what the bug is, and how you think you can fix had you more time.
Bonuses are exactly that, bonuses. If you can complete one or more, good. Otherwise, don't sweat it.
If you can't complete something, explain why, how you reached that conclusion and potential options to complete it.

What the assignment will not be judged on

Visual design. This is a UI coding excercise, not a visual design excercise.
UI performance (e.g. framerate), as long as it's reasonable. Feel free to indicate in the code if/why something would affect the framerate, and a potential solution to it.
If you try to complete a bonus and can't finish it, that's fine. I'd recommend using git commits/tags to indicate where the bonuses start in the history, so we can easily reset the branch at that commit and validate the minimum requirement.

API

You recruiter/hiring manager should share with you a unique URL for the API. userId below is unique to you. You will find that in the unique URL provided, the API will not work without this. If you have any issues please reach out over email.

Food

You can GET a list of foods from api/v1/<userId>/food.

This API will give you a list of foods. Sometimes this service can take awhile to respond. A food has at the minimum:

id - You can use this to like and unlike foods.
name - Name of the food.
isLiked - Do you like this?
photoURL - An absolute URL to an image of food that probably exists.
description - A description of the food. This could be empty or a very long string.
countryOfOrigin - An ISO-3166-1 Alpha-2 code of a country that is almost always real.
lastUpdatedDate - When the food was added to the system or when you last liked or unliked it in the standard ISO-8601 format.

{
  "id": 99,
  "name": "French Onion Soup",
  "isLiked": false,
  "photoURL": "https://opentable-dex-ios-test-000000000000.herokuapp.com/images/soup.jpg",
  "description": "French onion soup is a soup usually based on meat stock and onions, and often served gratinéed with croutons or a larger piece of bread covered with cheese floating on top. Ancient in origin, the dish underwent a resurgence of popularity in the 1960s in the United States due to a greater interest in French cuisine. French onion soup may be served as a meal in itself or as an entrée.",
  "countryOfOrigin": "FR",
  "lastUpdatedDate": "1970-01-01T00:00:00Z"
}

Like

You can PUT a like to api/v1/<userId>/food/<id>/like to set isLiked to true and update lastUpdatedDate to now. This service usually works but can throw errors sometimes. If the food has been succesffuly updated the value of success will be true

{ "success": true }

Unlike

You can PUT an unlike to api/v1/<userId>/food/<id>/unlike to set isLiked to false and update lastUpdatedDate to now. This service usually works but can throw errors sometimes. If the food has been succesffuly updated the value of success will be true

{ "success": true }

Fin

Happy coding!

opentable / OpenFoods