OrchardNest

Every year as new OS and Swift versions are released, the question comes up over and over again: “how do I use this new thing while also supporting older versions?”. While we have a bunch of “availability” tools at our disposal (and I’ll...

In the previous post, I shared how you can create custom property wrappers that will work with SwiftUI’s view updating mechanism. I wrote that because I’ve got one other neat property wrapper to share, but understanding how it works...

As I’ve been working with SwiftUI, I’ve come up with some custom property wrappers that I want to share with you. Most of these are property wrappers that can be easily accomplished using other approaches, but I like these for their...

A while ago I was playing around with Swift’s string interpolation functionality and come up with something cool I thought I’d share with you.

I was planning on having a few more posts on different loaders you can build using this architecture, but for the sake of “finishing” this series up, I’ve decided to forego a post-per-loader and instead highlight the main points of a few...

Over the course of this series, we’ve started with a simple idea and taken it to some pretty fascinating places. The idea we started with is that a network layer can be abstracted out to the idea of “I send this request, and eventually I...

So far we’ve built two different loaders that handle authentication, and it’s conceivable we’d want to build more to support others. Wouldn’t it be nice if we could encapsulate all of the “authentication” logic into a single loader?

The last post covered the basics of an OAuth flow: how we check to see if tokens, how we ask the user to log in, how we refresh the tokens, and so on. In this post we’re going to take that state machine and integrate it into an HTTPLoader...

While Basic Access authentication works for “basic” cases, it is far more common these days to see some form of OAuth used instead. There are some interesting advantages that OAuth has over Basic authentication, such as:

HTTP requests to web apis frequently need to have some sort of credential to go with them. The simplest kind of authentication is Basic Access authentication, and in this post we’ll be adding this feature to our library.

Most networking libraries have the ability to automatically send a request again if the received response wasn’t quite what the client was looking for. Let’s add that to our library as well.

I once worked on an app that used a Timer to periodically ping a server with a status update. In one build of the app, we noticed that the status server started experiencing CPU spikes, eventually culminating in it not being able to handle...

Cancelling an in-progress request is an important feature of any networking library, and it’s something we’ll want to support in this framework as well.

There are a couple remaining changes we need to make to our loading interface, and one of them is to allow resetting.

So far we’ve written enough code to describe a chain of HTTPLoader instances that can process an incoming HTTPRequest and eventually produce an HTTPResult.

In this post, we’ll be creating an HTTPLoader subclass that will allow us to dynamically modify requests.