Notes on software engineering by Pulkit Goyal — building web systems and writing down what I learn.
Exceptions are a core aspect of programming, and a way to signal when something goes wrong with a program. An exception could result from a simple error, or your program might crash because of underlying constraints. Exceptions are not necessarily bad, though — they are fundamental to any working application.
Comparing dependency-mocking approaches and libraries for Elixir tests.
Scaling databases to keep growing web applications responsive.
Modeling Ruby workflows with finite state machines and the state_machines gem.
Profiling Elixir applications with cprof, eprof, and fprof.
Using Ruby 2.7 pattern matching to make code more readable.
An overview of Rails 7's major features and changes.
Implementing and unit-testing long-running WebSocket connections between Elixir services.
Monitoring application email delivery with Mailgun webhooks and retries.
Creating and managing process pools in Elixir with Poolboy.
Deploy custom SSL certificate to Heroku for Next.JS apps and auto redirect to https.
Serving different stylesheets to different parts of a Next.js application.
Handle authentication right from your GraphQL API using login and logout mutations.
Unit-testing React hooks that execute GraphQL queries.
Routing, processing, and testing inbound email with Rails Action Mailbox.
Sending Firebase notifications from Firestore event-triggered Cloud Functions.
Unit-testing asynchronous React hooks that depend on Promise results.
Generating React components from SVG assets with SVGR.
Providing default values for missing fields in Apollo Client responses.
Using TypeScript mixins to compose reusable class behavior.
Fetching and decoding API responses compressed by a MessagePack Rack middleware.
Compressing Rack responses with custom middleware.
Implementing a code-based magic-login flow between TV and mobile apps.
A review of Neil Gaiman's The Ocean at the End of the Lane.
Using a custom Active Job adapter with Rails test helpers.
A science-fiction story about a writer awakened in a world ruled by her fictional god.
Debugging iOS applications on remote devices using Xcode and FlexiHub.
A custom Rails job adapter that avoids enqueueing duplicate background jobs.
Changing an iOS application's language at runtime and reloading localized UI.
Protecting authenticated sections in React and React Native applications.
Saving resume data and continuing interrupted iOS downloads.
Downloading remote files with Alamofire and file utilities on iOS.
A review of Dan Simmons's four-book Hyperion Cantos science-fiction series.
Extracting audio annotations on iOS with the Aubio library.
Showing music playback metadata and controls on the iOS lock screen.
Building an iOS music player with queues, playback controls, and background audio.
Introducing reactive iOS programming with RxSwift.
Introducing reactive Android programming with RxJava.
Mapping Swift language conveniences to equivalent Kotlin constructs.
Drawing a circular border around a UIImage in an iOS interface.
Generating a UIImage that displays a user's initials.
Resizing UIImagePickerController images with PhotoKit.
Displaying avatars on incoming and outgoing Atlas conversation messages.
Adding tappable avatar cells to Layer's Atlas conversation interface.
Opening full-size images from Atlas conversation cells.
Showing relative timestamps in Layer Atlas conversation lists.
Integrating Layer's messaging platform into an iOS application.
Organizing Chrome App development tasks with Grunt.
Practical considerations for using Auto Layout in iOS interfaces.
Localizing plural strings on iOS and OS X with .stringsdict files.