| ../ | - | - | |
| kutta-no-navegador.md | 2026-08-16 10:30 | 4.3K | Kutta now runs in a browser tab, compiled to WebAssembly from the same source as the desktop build. A solver step costs 6.1 ms under wasm against 2.3 ms native, and that number decided the simulation rate. |
| kutta.md | 2026-07-08 00:30 | 4.2K | Kutta is a small 2D wind tunnel written in Go with Ebitengine: it streams a Lattice-Boltzmann flow past an airfoil you can draw, cut into a wing and flap, and animate. Qualitative visual intuition, not validated CFD. |
| glaze.md | 2026-06-22 10:15 | 6.2K | How Glaze stopped embedding a C++ library and started calling the operating system's WebView directly, in pure Go, using purego to keep cgo and native dependencies out of the binary. |
| singleflight.md | 2026-06-13 09:57 | 5.6K | singleflight is not a cache. It just keeps simultaneous calls for the same key from doing the same expensive work several times. Once the call finishes, the entry is removed. |
| text_chunker.md | 2026-06-06 11:57 | 3.9K | An overlapping text chunker in Go using the stdlib iter package, without cutting words in half. |
| cofre-cifrado-em-go.md | 2026-05-31 01:02 | 2.8K | Combining terminal password input, encryption at rest, and a SQLite snapshot into a vault that lives in RAM and exists on disk only as an encrypted blob. |
| sqlite-na-ram-serialize-deserialize.md | 2026-05-31 00:46 | 2.2K | Running SQLite entirely in memory and taking a snapshot of the database bytes with serialize/deserialize, using the modernc.org/sqlite driver. |
| criptografia-at-rest-com-a-stdlib-go.md | 2026-05-31 00:38 | 3.2K | Encrypting data at rest with nothing but Go's standard library: PBKDF2 to derive the key from the password and AES-256-GCM to encrypt and authenticate. |
| capturando-senhas-no-terminal-go.md | 2026-05-30 10:00 | 1.3K | Reading passwords in the terminal in Go without echo and with confirmation on first use, using golang.org/x/term. |
| neko.md | 2026-04-11 09:15 | 5.3K | A Go reimplementation of the classic Neko: transparent window, original sprites, sound, and a cat that chases the cursor across the screen. |
| get-from-map.md | 2025-09-22 17:33 | 2.3K | Recursive Go function to access values in nested maps |
| serve-webdav-with-go.md | 2025-03-15 18:11 | 4.7K | How to configure and run an SFTP/WebDAV server using Go (sftpdav). Check out practical examples, security tips, and how to leverage standard libraries for building robust and efficient solutions. |
| protegendo-credenciais-e-configuracoes-com-conteiner-criptografado.md | 2025-02-20 22:43 | 3.9K | Create and manage an encrypted container to securely protect passwords, keys, and other sensitive data in a practical way without sacrificing performance |
| lqs-uma-ferramenta-prtica-para-testar-sql.md | 2025-02-15 18:31 | 3.1K | LQS: a practical tool for testing and debugging SQL. It allows integrating metadata, Lua scripts, and auxiliary queries to optimize your workflow and detect errors early. |
| goscope-explorando-e-navegando-em-projetos-go.md | 2025-02-09 02:47 | 3.7K | GoScope, command-line tools to explore Go projects and efficiently locate functions, variables, and types. Learn how to use them to navigate code interactively and boost your productivity. |
| executando-comandos-remotos-de-forma-interativa-com-ssh.md | 2025-02-08 13:38 | 2.1K | How to run commands on remote servers without starting full sessions, keeping interactive features and simplifying automation with SSH. |
| tracebacks-em-go.md | 2025-02-06 02:12 | 3.6K | How to get stack traces in Go with runtime.Caller and runtime.CallersFrames. Trace errors, customize logs, and improve your code's debugging. |
| transmissao-de-dados-usando-som-via-telefone-de-copos.md | 2025-01-25 21:58 | 3.6K | Transmitting data with sound, two plastic cups, and a string, combining creativity, nostalgia, and technology. |
| encontrando-os-paths-de-executaveis-usando-go.md | 2025-01-18 22:58 | 1.5K | How to use Go's exec.LookPath function to check whether programs are installed on the system and get their full paths. |
| checksum-com-golang.md | 2025-01-18 00:43 | 1.9K | How to use the FNV-1a algorithm with hash pools in Go, reducing garbage collector pressure without compromising performance. |
| mtls-implementando-autenticacao-mutua.md | 2025-01-11 19:49 | 7.5K | Mutual authentication with mTLS in Go, step by step. This guide covers certificate creation, server and client configuration, and security best practices to protect your applications. |
| hmac-assinatura-de-mensagens-segura-em-go.md | 2025-01-10 23:33 | 2.4K | Secure API authentication using HMAC (Hash-based Message Authentication Code) in Golang. |
| validacao-e-integracao-segura-de-json-em-apis-go.md | 2025-01-09 00:28 | 3.9K | How to safely validate and integrate JSON in Go APIs using json.RawMessage. And how to log invalid JSON errors while keeping the system's normal flow running. |
| manipulando-setuid-e-setgid.md | 2025-01-04 00:36 | 1.9K | How to configure special permissions with setuid and setgid to run programs with superuser privileges |
| reducao-de-privilegios-com-golang.md | 2025-01-02 22:43 | 2.5K | How to improve the security of Go programs by dropping execution privileges. Learn how to check and change users and groups on UNIX-like systems, with practical code examples and good practices to minimize attack risks. |
| referencias-nos-comentarios-com-golang.md | 2025-01-01 13:28 | 1.7K | References in Go code comments to make navigation easier. |
| efeito-plasma-no-terminal-com-golang.md | 2024-12-31 17:34 | 2.8K | How to create a plasma effect in the terminal with Golang, an example from the Go study group |
| feliz-2025-com-fogos-de-artificio-no-terminal-com-golang.md | 2024-12-31 13:09 | 4.8K | How to create a fireworks animation in the terminal using Go. |
| subindo-api-via-proxy-reverso-caddy-go.md | 2024-12-20 01:34 | 4.1K | How to deploy an API written in Go behind a reverse proxy with the Caddy HTTP server. |
| benchmark-retornos-nomeados-vs-explicitos-go.md | 2024-12-17 03:00 | 1.9K | Performance comparison between named and explicit returns in Go. Learn how to measure speed with benchmarks and interpret the results. |
| programacao-assistida-por-ia.md | 2023-04-22 09:33 | 7.3K | Thoughts and tips on using AI to help with software development. |
| escrevendo-software-para-durar.md | 2023-04-21 16:28 | 13.6K | A few tips I consider important for writing resilient software that lasts for years and is easy to maintain. |
| golang-retrocompatibilidade.md | 2023-04-12 09:24 | 3.7K | Most languages grow by adding new features and new capabilities. Go focuses on optimizing its existing foundation with a strong emphasis on backward compatibility. |
| golang-erro-de-arredondamento.md | 2023-04-12 09:24 | 2.3K | Errors when converting from floating point to integer are common, and this isn't a problem specific to Go. This is a classic example of that problem. |
| golang-cliente-servidor-socket-chat.md | 2022-08-21 09:35 | 3.6K | A chat example (TCP/IP socket) written in Go with goroutines and channels, this time with a bit of optimization for speed. |
| golang-cliente-servidor-socket-signals.md | 2022-08-12 00:30 | 2.1K | Adds signal handling to the TCP socket client/server example. |
| golang-cliente-servidor-socket-ping-pong.md | 2022-08-11 00:55 | 4.2K | An example of a socket client and server written in Go with persistent connections, now sending and receiving ping/pong messages to make sure the connection is alive. |
| golang-cliente-servidor-socket-com-canais-e-goroutines.md | 2022-08-07 23:47 | 4.6K | An example of a socket client and server written in Go with persistent connections, now using goroutines and channels. |
| golang-cliente-servidor-socket.md | 2022-08-03 07:36 | 4.8K | An example of a socket client and server written in Go with persistent connections. |
| docker-multi-stage-build.md | 2021-06-17 21:48 | 1.9K | Because Golang produces static, self-contained executables, we don't need anything installed in the container, not even libc. That means we can use a scratch image and build a truly tiny container. |
| go-http-timeout.md | 2020-10-04 12:50 | 1.3K | How to configure default timeouts for your HTTP server in Go. |
| go-controle-de-sessao.md | 2020-10-04 12:27 | 5.9K | How to build session control in Golang using Gorilla sessions, keeping data in cookies securely with AES-256 encryption |
| descobrindo-ip-com-golang.md | 2020-05-23 10:57 | 3.0K | How to find the client's and server's IP using Golang |
| diferencas-entre-slices-e-arrays-golang.md | 2022-09-09 01:37 | 6.4K | Differences between slice and array in Go, and a few usage tips. |
| problemas-programando-em-golang.md | 2020-03-01 11:11 | 13.4K | No programming language is perfect, and in this text I try to describe everything that can go wrong using Golang. |
| golang-shadow-variaveis.md | 2022-09-09 01:37 | 3.4K | How to find variable shadowing in Golang using go vet with an experimental module |
| web-scraping-com-golang.md | 2020-02-22 20:43 | 3.9K | Web scraping example with Golang and the Chrome DevTools Protocol |
| erro-na-ordem-do-switch.md | 2020-02-22 19:00 | 2.4K | A hard-to-debug bug involving interfaces and switch cases in Golang |
| cobertura-de-testes.md | 2022-09-09 01:37 | 3.1K | A script for viewing unit test coverage as HTML |
| quine-em-golang.md | 2019-02-12 06:45 | 2.3K | How to write a program that prints itself in Go. |
| postgresql-ssl-golang.md | 2022-09-09 01:37 | 8.4K | Configuring PostgreSQL to accept SSL connections from Go |
| unix-domain-socket-golang.md | 2018-12-06 06:45 | 3.9K | How to use Unix Domain Sockets for efficient and secure inter-process communication, with practical examples in Go and netcat. |
| json-lint-golang.md | 2020-02-22 20:52 | 3.2K | We use the error returned by json.Unmarshal to build a more useful and complete error message, pointing at the exact spot with an arrow and everything. |
| middleware-em-golang.md | 2020-02-22 20:52 | 4.9K | How to share information between the HTTP middleware in your system using context. |
| middleware-usando-negroni.md | 2020-02-22 20:52 | 4.5K | Examples of how to build middleware for your HTTP services, using the standard library and also the classic Negroni plus Gorilla mux combination. |
| goto-label-em-golang.md | 2018-10-26 06:45 | 3.7K | How to use goto and labels in Go with practical examples. How to apply break and continue safely and clearly, following good programming practices. |
| mensageria-com-nats-e-golang.md | 2020-02-22 20:52 | 1.7K | NATS is a messaging system written in Go, very fast and easy to use. It connects systems, whether IoT, mobile applications, or anywhere you need high performance when exchanging messages. |
| protobuf-com-golang.md | 2018-09-20 08:19 | 7.9K | First steps using Protocol Buffers with Go |
| json-parser.md | 2020-02-22 20:52 | 3.5K | How to teach the JSON parser to work with data in new formats |
| interface-contrato.md | 2018-08-30 20:05 | 3.4K | Tips on using interfaces in Go as a contract for structs |
| interface-vazia.md | 2022-09-09 01:43 | 5.7K | Tips on how to use the empty interface and the risks that come with it |
| json-golang.md | 2020-02-22 20:52 | 7.9K | Tutorial showing several ways to handle JSON using recursive functions and structs |
| dropbox-com-golang.md | 2021-06-10 00:19 | 3.2K | A tutorial on how to access Dropbox and upload, download, and list files |
| compilacao-estatica-com-golang.md | 2022-09-09 01:37 | 2.1K | How to compile your Go code without any external dependencies |
| formas-que-uso-para-acessar-porta-serial.md | 2022-09-09 01:37 | 3.4K | Some of the ways I use to access the serial port |
| go-brincando-com-bits.md | 2017-04-03 18:39 | 3.2K | How to manipulate bits using Golang |
| dicas-de-go-defer.md | 2017-03-24 20:12 | 3.1K | Defer helps a lot, but it also carries some risk. Here are a few usage tips |
| go-previnindo-data-race.md | 2022-09-09 01:37 | 2.5K | How to detect and prevent data race with Golang |
| go-carregando-arquivos-sped-fiscal-super-rapido.md | 2020-01-07 15:39 | 3.8K | One Sunday morning was all it took to make the system 95% faster at reading Sped Fiscal files |
| go-percorrendo-diretorios-com-filepath-walk.md | 2017-02-28 09:07 | 1.7K | With the help of the path/filepath package, walking through directories and files is easy. |
| go-usando-time-e-canais.md | 2020-01-07 15:39 | 1.6K | How to use the time package and channels to run a task every X interval, with a bit of terminal play along the way. |
| go-plugins.md | 2017-02-05 11:19 | 2.3K | Plugins in Go: the upside of loading modules dynamically, and the downsides — limited platform support, a CGO dependency, and no way to unload them. With practical examples of building and using one. |
| tratando-sinais-com-go.md | 2016-07-18 16:36 | 2.7K | How to check whether the user pressed ctrl+c, resized the window, or sent a user signal. |
| https-com-golang.md | 2022-09-09 01:37 | 5.1K | A very simple tutorial on how to use HTTPS certificates with Go |
| redirect-to-https.md | 2021-06-10 10:13 | 4.3K | Serving everything over HTTPS and using a reverse proxy to reach the services. |
| go-strings-aleatorias.md | 2016-04-13 11:30 | 3.8K | How to generate secure, high-quality random strings in Go. |
| index.xml | - | - | RSS feed |