Nested Enums and Protocol Extensions for Better URLs
When consuming a web service in iOS we all have seen similar code as shown below:
The above code will work fine but it might turn into a maintenance nightmare when the base URL changes or the service URL changes. Let’s see how we can improve URLs using nested enums and protocol extensions.
Instead of using String URLs I have used an enum to define the structure of paths associated with the URLs.
Now, I can use the App enum instead of the String type as shown below:
I can even pass parameters as shown below:
I think using nested enums gives more flexibility in creating the overall structure of the URLs and it also provides strong type support when using URLs in codebase.