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Topfew Release 0.5

tbray.org

Back in 2021-22, I wrote a series of blog posts about a program called “topfew” (tf...

Back in 2021-22, I wrote a series of blog posts about a program called “topfew” (tf from your shell command-line). It finds the field values (or combinations of values) which appear most often in a stream of records. I built it to explore large-scale data crunching in Go, and to investigate how performance compared ...

GitHub - gearnode/privatebin: A powerful CLI for creating and managing PrivateBin pastes with ease

github.com

go security

Golang - custom unmarshall func for explicitly nested type struct

stackoverflow.com

I have a explicitly nested type struct like this: type Communicate struct { Sender struct {...

I have a explicitly nested type struct like this: type Communicate struct { Sender struct { Command string `json:"command"` Info string `json:"info"` } `json:"sender"` Payload []struct { PayloadRow map[string]interface{} `json:"payloadRow"` } `json:"payload"` } and I would like to write custom unmarshall function for that explicitly nested "Payload" type. I know, that I can put "Payload" type separately, outside the Communicate type, but does Golang...

Making ijq Fast | g.p. anders

gpanders.com

April 13, 2024 I recently received an issue report that ijq was performing slowly. The issue...

April 13, 2024 I recently received an issue report that ijq was performing slowly. The issue claimed that, when used on a large (16 MB) JSON file, ijq was “too slow to be usable”. I downloaded the test file which was (helpfully) provided in the issue and tried it myself. Even using the most charitable definition, I ...

go performance

Circular Buffer Performance Trick

cybernetist.com

go performance

GitHub - zk-org/zk: A plain text note-taking assistant

github.com

ETag and HTTP Caching

rednafi.com

One neat use case for the HTTP ETag header is client-side HTTP caching for GET requests....

One neat use case for the HTTP ETag header is client-side HTTP caching for GET requests. Along with the ETag header, the caching workflow requires you to fiddle with other conditional HTTP headers like If-Match or If-None-Match. However, their interaction can feel a bit confusing at times.Every time I need to tackle...

api go

Libgourou: A Free Implementation of Adobe's Adept DRM on ePub/PDF Files

soutade.fr

libgourou is a free implementation of Adobe's ADEPT protocol used to add DRM on ePub/PDF files....

libgourou is a free implementation of Adobe's ADEPT protocol used to add DRM on ePub/PDF files. It overcome the lacks of Adobe support for Linux platforms. Architecture Like RMSDK, libgourou has a client/server scheme. All platform specific functions (crypto, network...) has to be implemented in a client class (that...

git gitea go self-hosted

Prevent sensitive data from leaking in Go/Golang

willem.dev

By default Go allows you to easily format, log or output values of most types. For...

By default Go allows you to easily format, log or output values of most types. For example, the following code prints the XYZ struct as a string. main.go package main import ( "fmt" ) type MyData struct { Field string } func main() { d := MyData{ Field: "Hello world!", } fmt.Println(d) } Usually this is a good thing...

GitHub - flipt-io/reverst: Reverse Tunnels in Go over HTTP/3 and QUIC

github.com

Fail to connect MatrixOne (from GitHub)

stackoverflow.com

When using the github.com/go-sql-driver/mysql driver to connect to matrixone, connecting with the default user root works...

When using the github.com/go-sql-driver/mysql driver to connect to matrixone, connecting with the default user root works fine, but attempting to connect using the account:username:role mode fails, resulting in the error: select failed: err[Error 20101 (HY000): internal error: there is no user. `import ( "database/sql" "fmt" _ "github.com/go-sql-driver/mysql" "net/url" ) func main() { _, err := sql.Open("mysql","account:admin:role:xxx@tcp(192.168.110.210:6001)/ssb") if err != nil { fmt.Printf("connect failed: err[%v]",...

database go

Betula

mycorrhiza.wiki

go release

Go’s Error Handling Is Perfect, Actually

verygoodsoftwarenotvirus.ru

Spend any amount of time in programming circles, and just as the sun rises and falls,...

Spend any amount of time in programming circles, and just as the sun rises and falls, you are certain to hear someone complain about error handling in Go. These complaints are, anecdotally, rarely well thought out suggestions on what error handling could or should be like in a language like Go, but often merely boil...

Mastering Go Channels for Elegant Synchronization

hackernoon.com

"Mastering Go Channels for Elegant Synchronization" is a comprehensive guide that explores the intricacies of using...

"Mastering Go Channels for Elegant Synchronization" is a comprehensive guide that explores the intricacies of using channels in Go for effective concurrency management. It covers everything from basic declarations and operations to advanced techniques, providing essential insights for developers aiming to enhance their concurrent programming skills in Go.

backend channels-in-go go golang programming

Data Flow Analysis for Go | The GoLand Blog

jetbrains.com

GoLand 2023.3 comes with support for data flow analysis (DFA). In this post, we’ll introduce the...

GoLand 2023.3 comes with support for data flow analysis (DFA). In this post, we’ll introduce the feature, explain how it works, and show some real-world examples of how DFA can detect bugs on the fly! Thanks to the CLion team for helping us by porting their powerful DFA engine. For now, the GoLand engine only implem...

debugging feature go goland

Excelize Official Documentation

xuri.me

Excelize: Library for Working with Excel Spreadsheets — Read and write XLAM / XLSM / XLSX...

Excelize: Library for Working with Excel Spreadsheets — Read and write XLAM / XLSM / XLSX / XLTM / and XLTX files. A long time library that keeps going from strength to strength. GitHub repo.

excel excelize go spreadsheet xlsm

Zen Mind, Google Intern's Mind

olano.dev

I obviously have things to say about Go’s controversial error handling. As a recap: errors are...

I obviously have things to say about Go’s controversial error handling. As a recap: errors are values in Go so, instead of raising exceptions, functions signal error conditions by returning extra values. Whereas in Python I would write: try: f = open('file.txt') except OSError as err: print("something went wrong", e...

Memory leaks in Go

dev.to

Memory leaks in Go A useful article to go over commont leaks in Go, method to...

Memory leaks in Go A useful article to go over commont leaks in Go, method to find them.

coding go learning observability performance

Representing State as interfaces in Go

emoses.org

Brute force text search optimizations | Ben E. C. Boyter

boyter.org

One of the things I see commonly on any mockup is a search box, usually with...

One of the things I see commonly on any mockup is a search box, usually with vaguely defined requirements as to how this is meant to actually work. However most people tend to assume its an instant update as you type with a debounce option of 100ms or something. The fastest way to implement this with a database is a...

The Case Of A Leaky Goroutine

brainbaking.com

The Case of a Leaky Goroutine — After finding “a never-ending goroutine factory” causing problems in...

The Case of a Leaky Goroutine — After finding “a never-ending goroutine factory” causing problems in an app, Wouter shares his findings so you can avoid a similar fate.

Semgrep: AutoFixes using LLMs · Choly's Blog

choly.ca

Sun, Mar 24, 2024 Semgrep is an incredible tool that allows you to search code by...

Sun, Mar 24, 2024 Semgrep is an incredible tool that allows you to search code by matching against the Abstract Syntax Tree (AST). For instance, if you want to find all method calls named get_foo, you can write a pattern like this: $A.get_foo(...) Test your own patterns using the playground: https://semgrep.dev/play...

ai go

Fault tolerance and resilience patterns for Go

failsafe-go.dev

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