GithubDemo

Summary

This app demonstrates the Fetching the list of closed pull request from GitHub with simple API call without Authorization. We need to use authorization provided by github inorder to overcome the "Rate limiting".

Todo that pls navigate to APIRouter and go to asURLRequest and add your github private user token to fetch the list

urlRequest.addValue("", forHTTPHeaderField: "Authorization")

Third Party Framewroks

I have used ALAMOFIRE to handle API Calls and Mapped JSON's to my CODABLE MODEL. All the codable models are tested with UNIT test with mock data. I have used SDWebImage to fetch the images

Architecture

I have implemented this feature with MVVM architecture, Where the ViewController speaks to ViewModel and In ViewModel, we will communicate to Service . The service speaks to network manager and Network manager expects the URLRequest from the APIHandler. Once we get the data we map into respective models and converted to UIModels and Passed back data to Viewcontroller

Pagination Logic

The above api is a paginated api, The logic for pagination is, if the fetcheditems count is less than itemsPerBatch (i.e., 10) then we dont make a api call until then new page details will be fetched

if newItems.count < self.itemsPerBatch {
  self.reachedEndOfItems = true
  print("reached end of data. Batch count: \(newItems.count)")
}

self.page += 1

Loader UI

Since its a pagination api we need to show loader to the tableview, so we have created a loader and added it to the section 1 of tableview, so whenever we fetch a data in background, the loader happens in frontend

Screenshots

UI Screenshot

First Fetch	Batch Request with Loader

Test Cases Screenshot

ViewModel with MOCK Data	Model with Mock Data