/ImageGram

Primary LanguageSwift

ImageGram

Build Status

Use Case Notes

I considered the following use cases:

  1. As a user, I would like to see a list of photo thumbnails.
  2. As a user, I would like to see a title associated with a photo thumbnail.
  3. As a user, I would like to be able to tap a photo thumbnail and see a larger photo.
  4. As a user, I would like to tap the larger photo and return to the original list of photo thumbnails.

I considered user stories such as "As a user, I would like to be notified if there is an error." as beyond the scope of this assignment. I didn't consider error states or preloading states.

Assumptions

  • I assumed that the json was to be taken as given. In a real-world scenario I would've spoken to the API devs and tried to get pagination implemented so that there wouldn't be 5,000 keys pulled in per call.
  • That this should be able to be compilable without using any package managers - that's why all of the frameworks are included.
  • That the 600x600 photo didn't need to fit fully on the screen.

Design Choices

  • I went with Reactive + MVVM. The feed's tableView is bound to a backing viewModel, which handles any data transformations that need to occur after the data is fetched from the API and serialized.
  • I used the Router pattern and declined to include a Presenter for the PhotoViewController.

Tests

  • I used Quick/Nimble to test the main viewModel because I enjoy its expressiveness.
  • There are snapshot tests for iPhone 7+ only. I saw generating snapshot tests for every device beyond the scope of this project.

Extras

  • Travis CI: The builds can be found here.
  • Fastlane: Lane information can be found here.