Go Cookbook
3 ways to iterate
3 different way to implement an iterator in Go: callbacks, channels, struct with
Next() function.
Advanced command execution with
os/exec
Standard library
os/exec is used for executing external programs. This
article describes slightly more advanced use cases.
HTTPS for free using Let's Encrypt
In the past supporting HTTPS required paying for SSL certificate. Thanks to
Let's Encrypt we get free SSL certificates and
autocert library does all the hard work of
provisioning them. Learn how to easily add HTTPS support and
redirect HTTP traffic to HTTPS.
Using MySQL in Docker for local
testing
How and why to run MySQL in Docker when developing Go web apps locally.
Simple
serialization format for logging and analytics
How to use it, how it was designed and implemented.
How to rotate log files daily
How to rotate a log file once per day.
Porting Yoga from C to Go
Porting 4.5k loc of Yoga (Facebook's CSS flexbox implementation) from C to Go.
Embedding build number in Go
executable
How to embed build number in Go executable.
Generating good unique ids
Generating unique ids comes up often in web services and distributed systems. This
article describes what a good,
unique id is and compares 7 libraries for generating ids.
Accessing GitHub API
GitHub offers a rich API for accessing information related to their
service. This article will get you
started writing programs that access the API.
Speeding up code with custom
allocators
Allocations are often a silent performance killer. This article takes a well-known
benchmark (construction of
binary trees) and speeds it up ~4x by optimizing memory allocations.
Fuzzing markdown parser with go-fuzz
Fuzzing programs in Go is almost trivial thanks to
go-fuzz. This article describes how I fuzzed my
markdown parsing library.
Extracting files from .7z archives
Go doesn't have a native library for reading 7-Zip. This article describes extracting
files from .7z archives
using cmd-line 7z program.
Improving speed of SMAZ compressor
by 2.6x/1.5x
A case study of improving performance with 3 micro-optimizations and demonstration of
Go benchmarking tools.