Bookmarks (2175)

You Don't Need a Library for File Walking in Go — Before 1.16, walking file trees incurred a level of overhead that led to multiple open-source packages trying to solve the problem, but now Go’s shoes are better made for walking.

Building Rich CLI Apps with Go's Built-in Templating — How the developers of a CLI tool extend the text/template package to enable richer output.

The DevSecGuide to Infrastructure as Code — Research on the state of IaC security, practical steps for building a DevSecOps culture, and tips for embedding security throughout the DevOps lifecycle.

▶  Discussing eBPF and Go — eBPF provides a sandbox that can run code inside the Linux kernel and it’s pretty awesome – we’ve linked to tutorials about using eBPF from Go before, but this is an hour-long chat about the possibilities.

Introducing sqlcomment: Database Perf Analysis with Ent and Google's Sqlcommenter — Ent is an entity framework that acts as an ORM for modeling and querying data in and from Go. It’s worth investigating on its own merits, but this post looks at an interesting next step using Google’s Sqlcommenter tool to bridge the gap between ORM and understand database performance by way of usefully...

pgmetrics 1.12: Collect and Display Stats from Running Postgres Servers — Written in Go, and here’s an example of its output. v1.12 adds Postgres 14 and PgBouncer 1.16 support, including collecting new PG14 specific stats. GitHub repo.

RoadRunner 2.5: A High Perf PHP Application Server and Load Balancer — A PHP app server, load balancer and process manager. Includes a PSR-7/17 compatible HTTP and HTTP/2 server and can replace a Nginx+FPM setup.

Toxiproxy 2.2: A TCP Proxy to Simulate 'Chaotic' Network and System Conditions — A tool you can use to see how your app copes with outages in third party APIs, databases, network accessible caches, etc. It’s written in Go but there are client libraries for numerous languages to use it from test suites.

Why You Should Use Dedicated Constructors in Go — Go’s aim for simplicity can, sometimes, lead to problems as a codebase grows. This tip will definitely keep your structs flexible and your future self less frustrated.

Build Serverless Apps with Go and Custom Handlers on Azure — An 8-unit tutorial on creating Azure Functions using Go. The units are short, though, so this is quickly consumable.

How to Schedule a Task at a Specific Time in Go — I’ve never needed to do this at this level, but it’s nice to have the option..

'Hey Linker, Can You Spare a Meg?' — Tailscale, a mesh VPN service, has its core code written in Go, but on iOS their network extension is limited to a mere 15MB of memory. Ensuring they stayed within this limit involved the Tailscale engineers digging deep into Go’s runtime, garbage collector, and more, ultimately resulting in improvements for all Go users coming to Go 1.18.

GoReleaser Can Now Create macOS Universal Binaries — GoReleaser is a popular tool for cross-compiling and releasing Go projects. Universal binaries are necessary on macOS now due to supporting both amd64 and arm64 architectures with Apple’s new chip releases (i.e. the M1).

Safer Enums in Go — For those of us that give more than an iota about enums, this post is a nice exploration of ways to make them better (integers bad, strings good) but certainly not perfect.

GoPlus (Go+): A More Scripty Variant of Go — It’s not going to win any awards for having a good, non-confusing name, but the overall idea of having a Go compatible language that leans more towards Python-style simplicity for scripting and data science use cases is interesting nonetheless.

truthy: Truthy Condition Testing with Go Generics — While this is “a little bit of a joke package”, it’s still something we should start to see once 1.18 is out.

Where Go and GraphQL Collide: Behind The Curtain with genqlient — How the authors of genqlient (a GraphQL client) handled some of the thornier problems around code generation, JSON, interfaces, and more.

▶  Go in 100 Seconds — There’s nothing in this video you don’t already know, but you can store it away as a quick intro for potential Gophers.

Proposal: Don't Add Generics to Go's Core Libraries in 1.18 — Rob is suggesting that new versions of the core libraries be placed in the experimental namespace so folks can test them before core gets ‘genericized’. The idea is that while we get generics in 1.18, we can take more time to figure out how the core libraries will use them.

▶  Concurrency Primitives of Go: How and How Not to Use Them — Considering wait groups, mutexes, channels, and more.

Rewriting Go Source Code with AST Tooling — Go’s code analysis tools are amongst the best but what about rewriting code? go/ast lets you convert Go code into syntax trees which can then be manipulated and turned back into Go code, so why not give it a go? Eli investigates.

Ebiten 2.2.0 Released with Nintendo Switch Support — A pretty sparse release post as they tend to be from Ebiten, but the popular 2D game library for Go is only getting better and better. Support has been added for native fullscreen in macOS, there are new vector graphics APIs, and you can even build games for the Nintendo Switch handheld with it now.

Shortcut Puts the Agile in Agile and the “Can” in Kanban — Imagine how much more you could get done if your project management tools didn't make you sigh. Shortcut is the ideal solution for task management, bug tracking, iteration planning, and reporting. Delight the scrum gods and give us a try for free.

Which Go Router Should I Use? — Alex looks at four popular routing options, citing the pros and cons of each and wrapping it up with a nice decision flowchart and a list of other routing options.

Three Things Go Needs Right Now More Than Generics? — Getting generics into Go has taken a lot of time and attention from the core team, which means other needs have been back-burnered. Do you agree with Ryan’s list? It led to a huge discussion on Hacker News.

📕  Book: 'Go Brain Teasers' — A new book by teacher, Go contributor, and author Miki Tebeka containing 25 puzzles to enhance your Go understanding. You can grab three chapters as sample PDFs on the page.

🎧  The 200th Episode of the Go Time Podcast — First, congratulations to the Go Time and Changelog team for keeping a podcast go-ing for so long, but second, if you want something fun to listen to this weekend, you might like this as they’ve celebrated with a game of Gophers Say!

Faster Time Parsing — The author works for a fraud detection company and they work with a lot of string-based timestamps in Go, much to the author’s regret, so he’s been looking at ways to speed up parsing RFC3339 timestamps.

▶  Reversing in Action: Go Malware Used in the SolarWinds Attack — This is hugely “above my paygrade”, as they say, but it’s a well produced video digging deep into reverse engineering some malware written in Go.

Capacity and Length of a Slice in Go — There are some nice visuals in this explanation of the oft compared and confused data types.

Inbucket 3.0: A Disposable Webmail Server with Built-In SMTP, POP3, and More — An email testing service that will accept messages for any email address and make them available via Web, REST and POP3 interfaces. No external dependencies, either.

BunRouter: Fast and Flexible Zero Allocations HTTP Router — Pushing gradually to a 1.0 release which we’ll cover when it drops.

Twisting AWS Lambda to Make an Australian Search Engine — A fun look at a way to twist AWS’s serverless platform to unexpected ends by embedding a large search index into numerous compiled serverless functions and using these to power a small search engine. Beautifully done and with some Go at its heart.

Unusual Generics: Collection of Unusual Generics Use Cases — Early days for this, but you’re encouraged to submit your own.

RateLimiter: A Concurrent Rate Limiter Library — Based on a sliding window rate limiting algorithm. Use this anywhere you need to rate limit anything in Go code.

awesome-go-style: A Collection of Go Style Guides — A list of links to things to read about Go code style including specific Go style guides.

Wrapping Errors the 'Right' Way — The author argues to not include information the caller already knows in your errors, although this is just one opinion.

The Difference Between Go and Rust — This isn’t deep by any means but the languages are often compared despite having different use cases and approaches.

▶  Go on Hardware: TinyGo in the Wild — We’ve championed TinyGo a lot in this newsletter over the years and it’s great to hear directly from gophers working on the hardware side of things talking about things like controlling video hardware, programming Bluetooth devices, making WiFi work on Arduinos, and more. (70 minutes.)

Foundations: WebAssembly in Go is Fantastic — Finally a WASM in Go tutorial that goes beyond the simple “Hello World!” examples, touching on passing JSON and arrays between Go and Javascript, as well as using TinyGo for smaller files.

Live Streaming for Go Apps — From zero to live streaming in a couple of minutes. Mux Video is an API-first platform that makes it easy to build beautiful live video that streams everywhere.

genqlient: A Truly Type-Safe Go GraphQL Client — A newly open sourced GraphQL client from Khan Academy that supports both writing queries next to code and GraphQL files. Developer ergonomics are a strong point here.

A WebAssembly-Powered Browser 'Go Playground' — Unlike the long standing official Go Playground where code is executed on a server, the idea here is that Go code is executed within your browser with Goscript doing the heavy lifting.