FlickrImagesDemo

FlickrImagesDemo is a project that uses the Flickr image search API and shows the results in a 3-column scrollable collection view. 


Description:

• Enter queries such as "kittens" in search bar to search images from Flickr.
• Use infinite scrolling to automatically requesting and displaying more images when the user scrolls to the bottom of the view. 

• Use Model-View-ViewModel (MVVM) Architecture.
• Use Image caching for the photos displayed in the app to save network and time.
• Use Storyboard Auto-layout.

About Flickr API

To search images, API endpoint used is:

https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key={yourKey}&%20format=json&nojsoncallback=1&safe_search=1&text={yourSearchQuery}

Replace {yourSearchQuery} with search keyword.

Generate your api_key here

More documentation about the search endpoint can be found [here](https:// www.flickr.com/services/api/explore/flickr.photos.search)

It returns a JSON object with a list of Flickr photo models. Each Flickr photo model is defined as below:

{
  "id": "23451156376",
  "owner": "28017113@N08",
  "secret": "8983a8ebc7",
  "server": "578",
  "farm": 1,
  "title": "Merry Christmas!",
  "ispublic": 1,
  "isfriend": 0,
  "isfamily": 0
}

To load the photo, you can build the full URL following this pattern: http://farm{farm}.static.flickr.com/{server}/{id}_{secret}.jpg

Thus, using our Flickr photo model example above, the full URL would be: https://farm1.static.flickr.com/578/23451156376_8983a8ebc7.jpg