A Tale of Two `rand`s

I had always been a bit confused as to how the crypto/rand package and the math/rand package were related, or how they were expected to work (together).

Creating Your Own Bot Experience with go-sarah

Chat tools have been good friends of developers. On chat tools we share our thoughts, problems, solutions, jokes, and pretty much everything we do as software engineers.

Processing spreadsheet data in Go

Your managers, all through the hierarchy, love circulating spreadsheets via email. (They simply don't know better.) How to extract and analyze the relevant data from the daily mess? Go can help.

Minimal Perfect Hash Functions

A regular hash function turns a key (a string or a number) into an integer. Most people will know them as either the cryptographic hash functions (MD5, SHA1, SHA256, etc) or their smaller non-cryptographic counterparts frequently encountered in hash tables (the map keyword in Go)...

Automating Go development with Make

Make is an old tool that you can use today to help get everyone on your team on the same page, and make it easy for new contributors to your project to get started.

Using GopherJS with gRPC-Web

Introduction This article will talk about how to connect a GopherJS frontend to a Go backend. If you haven’t heard about GopherJS before, it’s an open source Go-to-JavaScript transpiler, allowing us to write Go code and run it in the browser.

Create a bot with NLU in Python

At Wizeline we have Python courses, and recent topic was how to build a Bot in Python.

Go Defer Internals — Quick Look

1º Joinville SRE Meetup

I spoke about how we migrate our monitoring infrastructure to Prometheus & Friends, what we got out of it and how it is working for us right now.

Go Defer Simplified with Practical Visuals