You can watch this episode by subscribing to Cocoacasts Plus.

Building Reactive Applications With Combine

Recovering from Errors

by Bart Jacobs in Programming

Swift 5 Xcode 12 iOS 14

Building Reactive Applications With Combine

1	Introduction 03:12
2	What Is Reactive Programming 09:53
3	First-Class Functions and Function Types 06:49
4	Pure Functions and Higher-Order Functions 06:51
5	What Is Combine 04:17
6	Getting Your Feet Wet With Combine Plus 07:51
7	Managing Subscriptions Plus 04:24
8	Adding Operators to the Mix Plus 05:48
9	Working With Publishers and Subscribers Plus 08:17
10	Understanding the Life Cycle of a Subscription Plus 06:45
11	Reactifying Swift with the Published Property Wrapper Plus 08:01
12	Filtering and Transforming Elements with Operators Plus 07:33
13	Using Publishers to Push Data Plus 06:27
14	Hiding Implementation Details with Type Erasure Plus 08:36
15	Driving the User Interface with Publishers Plus 07:42
16	Bridging Imperative and Reactive Programming Plus 08:50
17	Reducing Complexity and Code Duplication Plus 07:07
18	Reducing State with Subjects Plus 08:35
19	Combining Publishers with Zip and Combine Latest Plus 11:07
20	Reactifying the Week View Controller Plus 08:32
21	Combine and Diffable Data Sources Plus 08:53
22	Driving Table View Cells with Combine Plus 12:39
23	Subscribing to Settings Changes Plus 11:08
24	Networking and Schedulers Plus 07:25
25	Handling Errors Plus 06:48
26	Recovering from Errors Plus 07:35
27	Avoiding Infinite Loops Plus 09:30
28	Futures and Promises Plus 11:04
29	Replacing Completion Handlers with Futures Plus 09:13
30	Transforming Publishers with Flat Map Plus 08:02

Download Your Free Copy of
The Missing Manual
for Swift Development

The Guide I Wish I Had When I Started Out

Join 20,000+ Developers Learning About Swift Development

Download Your Free Copy

Cloudy shows the user an error if it isn't able to fetch weather data from the weather API. We map any errors that are thrown to WeatherDataError in the RootViewModel class. This solution works fine and it is a fitting implementation for the weather application we are building. In this episode, I show you three other options to handle errors.

Instant and Unlimited Access
to 400+ Cocoacasts Tutorials

Monthly

$19 / month

Pay Once a Month
30 Day Money Back Guarantee

Get Started

Yearly

$8.25 / month (billed annually)

Pay Once a Year and Save $129
30 Day Money Back Guarantee
Access to All Books

Get Started

Building Reactive Applications With Combine

Recovering from Errors

Instant and Unlimited Accessto 400+ Cocoacasts Tutorials

Instant and Unlimited Access
to 400+ Cocoacasts Tutorials