#LogTape

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Just released 0.9.0! 🎉

This version brings two major improvements to our zero-dependency library for :

  1. New Synchronous Configuration API: You can now configure LogTape synchronously with configureSync(), disposeSync(), and resetSync(). Perfect for simpler setups where you don't need async operations!

  2. Better Runtime Compatibility: We've moved all file-related components to a separate @logtape/file package. This means the core package now works flawlessly across all JavaScript environments—browsers, edge functions, and various bundlers without any file system dependencies.

Plus, we've added level mapping options for console sinks, giving you more control over how your logs appear.

Check out the full release notes for migration details:

https://hackers.pub/@hongminhee/2025/logtape-090

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hackers.pub

We're excited to announce the release of LogTape 0.9.0! This version brings important improvements to make LogTape more flexible across different JavaScript environments while simplifying configuration for common use cases.

What's New

  • Synchronous Configuration API: Added new synchronous configuration functions for environments where async operations aren't needed or desired
  • Improved Runtime Compatibility: Moved file-system dependent components to a separate package for better cross-runtime support

New Features

Synchronous Configuration API: Simplifying Your Setup

Added synchronous versions of the configuration functions:

These functions offer a simpler API for scenarios where async operations aren't needed, allowing for more straightforward code without awaiting promises. Note that these functions cannot use sinks or filters that require asynchronous disposal (such as stream sinks), but they work perfectly for most common logging configurations.

import { configureSync, getConsoleSink } from "@logtape/logtape";

configureSync({ 
  sinks: {
    console: getConsoleSink(),
  },
  loggers: [
    {
      category: "my-app",
      lowestLevel: "info",
      sinks: ["console"],
    },
  ],
});

Console Sink Enhancements

Breaking Changes

File Sinks Moved to Separate Package: Better Cross-Platform Support

To improve runtime compatibility, file-related sinks have been moved to the @logtape/file package:

This architectural change ensures the core @logtape/logtape package is fully compatible with all JavaScript runtimes, including browsers and edge functions, without introducing file system dependencies. You'll now enjoy better compatibility with bundlers like Webpack, Rollup, and Vite that previously had issues with the file system imports.

Migration Guide

If you were using file sinks, update your imports:

// Before
import { getFileSink, getRotatingFileSink } from "@logtape/logtape";

// After
import { getFileSink, getRotatingFileSink } from "@logtape/file";

Don't forget to install the new package:

# For npm, pnpm, Yarn, Bun
npm add @logtape/file

# For Deno
deno add jsr:@logtape/file

Looking Forward

This release represents our ongoing commitment to making LogTape the most flexible and developer-friendly logging solution for JavaScript and TypeScript applications. We're continuing to improve performance and extend compatibility across the JavaScript ecosystem.

Contributors

Special thanks to Murph Murphy for their valuable contribution to this release.


As always, we welcome your feedback and contributions! Feel free to open issues or pull requests on our GitHub repository.

Happy logging!

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social · Reply to 洪 民憙 (Hong Minhee)'s post

0.9.0をリリースしました!🎉

今回のバージョンでは、TypeScript向けの依存関係ゼロのロギングライブラリに二つの大きな改善を加えました:

  1. 新しい同期設定APIconfigureSync()disposeSync()resetSync()を使って同期的にLogTapeを設定できるようになりました。非同期操作が不要なシンプルな環境に最適です!

  2. ランタイム互換性の向上:ファイル関連のコンポーネントをすべて別パッケージ@logtape/fileに移動しました。これにより、コアパッケージはファイルシステム依存なしで、ブラウザ、エッジ関数、各種バンドラーなど、あらゆるJavaScript環境でシームレスに動作します。

さらに、コンソールシンクにレベルマッピングオプションを追加し、ログの表示方法をより細かく制御できるようになりました。

移行の詳細については、リリースノートをご覧ください。

https://zenn.dev/hongminhee/articles/98989e400c5fcf

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Just released 0.9.0! 🎉

This version brings two major improvements to our zero-dependency library for :

  1. New Synchronous Configuration API: You can now configure LogTape synchronously with configureSync(), disposeSync(), and resetSync(). Perfect for simpler setups where you don't need async operations!

  2. Better Runtime Compatibility: We've moved all file-related components to a separate @logtape/file package. This means the core package now works flawlessly across all JavaScript environments—browsers, edge functions, and various bundlers without any file system dependencies.

Plus, we've added level mapping options for console sinks, giving you more control over how your logs appear.

Check out the full release notes for migration details:

https://hackers.pub/@hongminhee/2025/logtape-090

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hackers.pub

We're excited to announce the release of LogTape 0.9.0! This version brings important improvements to make LogTape more flexible across different JavaScript environments while simplifying configuration for common use cases.

What's New

  • Synchronous Configuration API: Added new synchronous configuration functions for environments where async operations aren't needed or desired
  • Improved Runtime Compatibility: Moved file-system dependent components to a separate package for better cross-runtime support

New Features

Synchronous Configuration API: Simplifying Your Setup

Added synchronous versions of the configuration functions:

These functions offer a simpler API for scenarios where async operations aren't needed, allowing for more straightforward code without awaiting promises. Note that these functions cannot use sinks or filters that require asynchronous disposal (such as stream sinks), but they work perfectly for most common logging configurations.

import { configureSync, getConsoleSink } from "@logtape/logtape";

configureSync({ 
  sinks: {
    console: getConsoleSink(),
  },
  loggers: [
    {
      category: "my-app",
      lowestLevel: "info",
      sinks: ["console"],
    },
  ],
});

Console Sink Enhancements

Breaking Changes

File Sinks Moved to Separate Package: Better Cross-Platform Support

To improve runtime compatibility, file-related sinks have been moved to the @logtape/file package:

This architectural change ensures the core @logtape/logtape package is fully compatible with all JavaScript runtimes, including browsers and edge functions, without introducing file system dependencies. You'll now enjoy better compatibility with bundlers like Webpack, Rollup, and Vite that previously had issues with the file system imports.

Migration Guide

If you were using file sinks, update your imports:

// Before
import { getFileSink, getRotatingFileSink } from "@logtape/logtape";

// After
import { getFileSink, getRotatingFileSink } from "@logtape/file";

Don't forget to install the new package:

# For npm, pnpm, Yarn, Bun
npm add @logtape/file

# For Deno
deno add jsr:@logtape/file

Looking Forward

This release represents our ongoing commitment to making LogTape the most flexible and developer-friendly logging solution for JavaScript and TypeScript applications. We're continuing to improve performance and extend compatibility across the JavaScript ecosystem.

Contributors

Special thanks to Murph Murphy for their valuable contribution to this release.


As always, we welcome your feedback and contributions! Feel free to open issues or pull requests on our GitHub repository.

Happy logging!

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Just released 0.9.0! 🎉

This version brings two major improvements to our zero-dependency library for :

  1. New Synchronous Configuration API: You can now configure LogTape synchronously with configureSync(), disposeSync(), and resetSync(). Perfect for simpler setups where you don't need async operations!

  2. Better Runtime Compatibility: We've moved all file-related components to a separate @logtape/file package. This means the core package now works flawlessly across all JavaScript environments—browsers, edge functions, and various bundlers without any file system dependencies.

Plus, we've added level mapping options for console sinks, giving you more control over how your logs appear.

Check out the full release notes for migration details:

https://hackers.pub/@hongminhee/2025/logtape-090

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hackers.pub

We're excited to announce the release of LogTape 0.9.0! This version brings important improvements to make LogTape more flexible across different JavaScript environments while simplifying configuration for common use cases.

What's New

  • Synchronous Configuration API: Added new synchronous configuration functions for environments where async operations aren't needed or desired
  • Improved Runtime Compatibility: Moved file-system dependent components to a separate package for better cross-runtime support

New Features

Synchronous Configuration API: Simplifying Your Setup

Added synchronous versions of the configuration functions:

These functions offer a simpler API for scenarios where async operations aren't needed, allowing for more straightforward code without awaiting promises. Note that these functions cannot use sinks or filters that require asynchronous disposal (such as stream sinks), but they work perfectly for most common logging configurations.

import { configureSync, getConsoleSink } from "@logtape/logtape";

configureSync({ 
  sinks: {
    console: getConsoleSink(),
  },
  loggers: [
    {
      category: "my-app",
      lowestLevel: "info",
      sinks: ["console"],
    },
  ],
});

Console Sink Enhancements

Breaking Changes

File Sinks Moved to Separate Package: Better Cross-Platform Support

To improve runtime compatibility, file-related sinks have been moved to the @logtape/file package:

This architectural change ensures the core @logtape/logtape package is fully compatible with all JavaScript runtimes, including browsers and edge functions, without introducing file system dependencies. You'll now enjoy better compatibility with bundlers like Webpack, Rollup, and Vite that previously had issues with the file system imports.

Migration Guide

If you were using file sinks, update your imports:

// Before
import { getFileSink, getRotatingFileSink } from "@logtape/logtape";

// After
import { getFileSink, getRotatingFileSink } from "@logtape/file";

Don't forget to install the new package:

# For npm, pnpm, Yarn, Bun
npm add @logtape/file

# For Deno
deno add jsr:@logtape/file

Looking Forward

This release represents our ongoing commitment to making LogTape the most flexible and developer-friendly logging solution for JavaScript and TypeScript applications. We're continuing to improve performance and extend compatibility across the JavaScript ecosystem.

Contributors

Special thanks to Murph Murphy for their valuable contribution to this release.


As always, we welcome your feedback and contributions! Feel free to open issues or pull requests on our GitHub repository.

Happy logging!

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social · Reply to 洪 民憙 (Hong Minhee)'s post

0.9.0をリリースしました!🎉

今回のバージョンでは、TypeScript向けの依存関係ゼロのロギングライブラリに二つの大きな改善を加えました:

  1. 新しい同期設定APIconfigureSync()disposeSync()resetSync()を使って同期的にLogTapeを設定できるようになりました。非同期操作が不要なシンプルな環境に最適です!

  2. ランタイム互換性の向上:ファイル関連のコンポーネントをすべて別パッケージ@logtape/fileに移動しました。これにより、コアパッケージはファイルシステム依存なしで、ブラウザ、エッジ関数、各種バンドラーなど、あらゆるJavaScript環境でシームレスに動作します。

さらに、コンソールシンクにレベルマッピングオプションを追加し、ログの表示方法をより細かく制御できるようになりました。

移行の詳細については、リリースノートをご覧ください。

https://zenn.dev/hongminhee/articles/98989e400c5fcf

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Just released 0.9.0! 🎉

This version brings two major improvements to our zero-dependency library for :

  1. New Synchronous Configuration API: You can now configure LogTape synchronously with configureSync(), disposeSync(), and resetSync(). Perfect for simpler setups where you don't need async operations!

  2. Better Runtime Compatibility: We've moved all file-related components to a separate @logtape/file package. This means the core package now works flawlessly across all JavaScript environments—browsers, edge functions, and various bundlers without any file system dependencies.

Plus, we've added level mapping options for console sinks, giving you more control over how your logs appear.

Check out the full release notes for migration details:

https://hackers.pub/@hongminhee/2025/logtape-090

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hackers.pub

We're excited to announce the release of LogTape 0.9.0! This version brings important improvements to make LogTape more flexible across different JavaScript environments while simplifying configuration for common use cases.

What's New

  • Synchronous Configuration API: Added new synchronous configuration functions for environments where async operations aren't needed or desired
  • Improved Runtime Compatibility: Moved file-system dependent components to a separate package for better cross-runtime support

New Features

Synchronous Configuration API: Simplifying Your Setup

Added synchronous versions of the configuration functions:

These functions offer a simpler API for scenarios where async operations aren't needed, allowing for more straightforward code without awaiting promises. Note that these functions cannot use sinks or filters that require asynchronous disposal (such as stream sinks), but they work perfectly for most common logging configurations.

import { configureSync, getConsoleSink } from "@logtape/logtape";

configureSync({ 
  sinks: {
    console: getConsoleSink(),
  },
  loggers: [
    {
      category: "my-app",
      lowestLevel: "info",
      sinks: ["console"],
    },
  ],
});

Console Sink Enhancements

Breaking Changes

File Sinks Moved to Separate Package: Better Cross-Platform Support

To improve runtime compatibility, file-related sinks have been moved to the @logtape/file package:

This architectural change ensures the core @logtape/logtape package is fully compatible with all JavaScript runtimes, including browsers and edge functions, without introducing file system dependencies. You'll now enjoy better compatibility with bundlers like Webpack, Rollup, and Vite that previously had issues with the file system imports.

Migration Guide

If you were using file sinks, update your imports:

// Before
import { getFileSink, getRotatingFileSink } from "@logtape/logtape";

// After
import { getFileSink, getRotatingFileSink } from "@logtape/file";

Don't forget to install the new package:

# For npm, pnpm, Yarn, Bun
npm add @logtape/file

# For Deno
deno add jsr:@logtape/file

Looking Forward

This release represents our ongoing commitment to making LogTape the most flexible and developer-friendly logging solution for JavaScript and TypeScript applications. We're continuing to improve performance and extend compatibility across the JavaScript ecosystem.

Contributors

Special thanks to Murph Murphy for their valuable contribution to this release.


As always, we welcome your feedback and contributions! Feel free to open issues or pull requests on our GitHub repository.

Happy logging!

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social · Reply to 洪 民憙 (Hong Minhee)'s post

Just responded to some browser compatibility issues with . Turns out bundling everything in one package creates headaches for Next.js and other browser environments.

For the next minor version, we're breaking things up:

  • @logtape/logtape will be browser-friendly with zero compromises
  • @logtape/file will handle filesystem operations
  • Other specialized features will get their own packages

This should make LogTape work seamlessly across all environments while giving developers better control over what they include.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social · Reply to 洪 民憙 (Hong Minhee)'s post

Just responded to some browser compatibility issues with . Turns out bundling everything in one package creates headaches for Next.js and other browser environments.

For the next minor version, we're breaking things up:

  • @logtape/logtape will be browser-friendly with zero compromises
  • @logtape/file will handle filesystem operations
  • Other specialized features will get their own packages

This should make LogTape work seamlessly across all environments while giving developers better control over what they include.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

I am to resolve the pending issues of this evening.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Haven't talked about LogTape in a while—it's a library I made for and . You know how logging can be a pain point in JavaScript/TypeScript development? Well, I tried to address some common frustrations.

What makes it special

Zero dependencies

We've all been there with dependency hell, right? has absolutely no external dependencies. Install it without worrying about bloating your node_modules.

Hierarchical categories

You can organize your logs in a tree structure. Want to save only database-related logs to a file? Easy to do. Child categories can inherit settings from their parents too, which keeps things clean and manageable.

Library-friendly

Writing a library and want to include logs without stepping on your users' toes? LogTape lets you add logging to your library while giving end users complete control over how those logs are handled.

Structured logging

Plain text logs not cutting it? LogTape supports structured logging. Makes log analysis way easier down the road.

Runs anywhere

Works smoothly in Node.js, Deno, Bun, browsers, and even edge functions. No special configuration needed.


Check out https://logtape.org/ if you're interested in learning more.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Haven't talked about LogTape in a while—it's a library I made for and . You know how logging can be a pain point in JavaScript/TypeScript development? Well, I tried to address some common frustrations.

What makes it special

Zero dependencies

We've all been there with dependency hell, right? has absolutely no external dependencies. Install it without worrying about bloating your node_modules.

Hierarchical categories

You can organize your logs in a tree structure. Want to save only database-related logs to a file? Easy to do. Child categories can inherit settings from their parents too, which keeps things clean and manageable.

Library-friendly

Writing a library and want to include logs without stepping on your users' toes? LogTape lets you add logging to your library while giving end users complete control over how those logs are handled.

Structured logging

Plain text logs not cutting it? LogTape supports structured logging. Makes log analysis way easier down the road.

Runs anywhere

Works smoothly in Node.js, Deno, Bun, browsers, and even edge functions. No special configuration needed.


Check out https://logtape.org/ if you're interested in learning more.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Haven't talked about LogTape in a while—it's a library I made for and . You know how logging can be a pain point in JavaScript/TypeScript development? Well, I tried to address some common frustrations.

What makes it special

Zero dependencies

We've all been there with dependency hell, right? has absolutely no external dependencies. Install it without worrying about bloating your node_modules.

Hierarchical categories

You can organize your logs in a tree structure. Want to save only database-related logs to a file? Easy to do. Child categories can inherit settings from their parents too, which keeps things clean and manageable.

Library-friendly

Writing a library and want to include logs without stepping on your users' toes? LogTape lets you add logging to your library while giving end users complete control over how those logs are handled.

Structured logging

Plain text logs not cutting it? LogTape supports structured logging. Makes log analysis way easier down the road.

Runs anywhere

Works smoothly in Node.js, Deno, Bun, browsers, and even edge functions. No special configuration needed.


Check out https://logtape.org/ if you're interested in learning more.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social · Reply to 洪 民憙 (Hong Minhee)'s post

Perhaps unsurprisingly, every project I've been working on in TypeScript lately has been using : @fedify, @hollo, @botkit, Hackers' Pub…

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Haven't talked about LogTape in a while—it's a library I made for and . You know how logging can be a pain point in JavaScript/TypeScript development? Well, I tried to address some common frustrations.

What makes it special

Zero dependencies

We've all been there with dependency hell, right? has absolutely no external dependencies. Install it without worrying about bloating your node_modules.

Hierarchical categories

You can organize your logs in a tree structure. Want to save only database-related logs to a file? Easy to do. Child categories can inherit settings from their parents too, which keeps things clean and manageable.

Library-friendly

Writing a library and want to include logs without stepping on your users' toes? LogTape lets you add logging to your library while giving end users complete control over how those logs are handled.

Structured logging

Plain text logs not cutting it? LogTape supports structured logging. Makes log analysis way easier down the road.

Runs anywhere

Works smoothly in Node.js, Deno, Bun, browsers, and even edge functions. No special configuration needed.


Check out https://logtape.org/ if you're interested in learning more.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@hollo.social

Haven't talked about LogTape in a while—it's a library I made for and . You know how logging can be a pain point in JavaScript/TypeScript development? Well, I tried to address some common frustrations.

What makes it special

Zero dependencies

We've all been there with dependency hell, right? has absolutely no external dependencies. Install it without worrying about bloating your node_modules.

Hierarchical categories

You can organize your logs in a tree structure. Want to save only database-related logs to a file? Easy to do. Child categories can inherit settings from their parents too, which keeps things clean and manageable.

Library-friendly

Writing a library and want to include logs without stepping on your users' toes? LogTape lets you add logging to your library while giving end users complete control over how those logs are handled.

Structured logging

Plain text logs not cutting it? LogTape supports structured logging. Makes log analysis way easier down the road.

Runs anywhere

Works smoothly in Node.js, Deno, Bun, browsers, and even edge functions. No special configuration needed.


Check out https://logtape.org/ if you're interested in learning more.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Just released @logtape/sentry, a sink for @getsentry! Now you can easily send your logs to .

github.com/dahlia/logtape-sent

LogTape records show up in Sentry.
ALT text detailsLogTape records show up in Sentry.
anno189

@anno189@hollo.1dian.site

Simple logging library with zero dependencies for Deno, Node.js, Bun, browsers, and edge functions https://logtape.org/

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Star History of , , and :

star-history.com/#dahlia/fedif

Star History of Fedify, Hollo, and LogTape.
ALT text detailsStar History of Fedify, Hollo, and LogTape.
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org · Reply to 洪 民憙 (Hong Minhee)'s post

0.7.0をリリースしました!

新機能の暗黙的コンテキストにより、リクエストID、ユーザーIDなどの文脈情報を、手動で渡すことなくログに自動的に含められるようになりました。

詳しくは記事をご覧ください:

zenn.dev/hongminhee/articles/3

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Just released 0.7.0 with implicit contexts! Now you can automatically include request IDs, user IDs, and more in your logs without passing context manually. Read more about this powerful feature:

dev.to/hongminhee/introducing-

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

v0.6.0, a zero-dependency structured logging library for & , has been released. The main changes include:

• Loggers now can override sinks of their ascendants.
• Placeholders in message templates now forgive leading and trailing spaces.
• Added LogRecord.rawMessage property.
• Built-in text formatters now can be customized.

Available now from JSR and npm:

• JSR: jsr.io/@logtape/logtape@0.6.0
• npm: npmjs.com/package/@logtape/log

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Starting with the next version of , the built-in text formatters will be highly customizable.

unstable.logtape.org/manual/fo

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Refactoring 's built-in text formatters… It will provide options for more flexible configuration.

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Oh, the 's GitHub repository has reached 400 stars!

github.com/dahlia/logtape

A screenshot of LogTape's GitHub repository with 400 stars.
ALT text detailsA screenshot of LogTape's GitHub repository with 400 stars.
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Version 0.5.0 of , the zero-dependency library for , .js, , edge functions, and browsers, has been released! The main additions include:

• Contexts
• ANSI color formatter
• Comprehensive docs
• A few API conveniences

LogTape v0.5.0 is available from JSR and npm:

• JSR: jsr.io/@logtape/logtape@0.5.0
• npm: npmjs.com/package/@logtape/log

In addition, a new website with documentation has been launched, so please check it out!

logtape.org/

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org · Reply to 洪 民憙 (Hong Minhee)'s post

got its website now!

logtape.org/

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Working on the website… saves me again.

A preview of the LogTape website powered by VitePress
ALT text detailsA preview of the LogTape website powered by VitePress
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org · Reply to 洪 民憙 (Hong Minhee)'s post

Okay, all done. You can now use to send logs directly to the collector!

github.com/dahlia/logtape-otel

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

I'm implementing an sink for , but it's more complicated than I thought and has a lot of package dependencies… 🤔

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

QiitaにLogTapeの紹介文を日本語で書いて載せました。翻訳機とAIを多用したため、不自然な日本語があるかもしれませんが、不適切な表現を見つけたらぜひご指摘ください!

qiita.com/hongminhee/items/fff

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Wow, a lot of people starred the repo overnight! It's now over 200 stars, thank you.

The LogTape repository on GitHub with 208 stars.
ALT text detailsThe LogTape repository on GitHub with 208 stars.
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

In the next version of , a zero-dependency library for & , contexts will be introduced that allow the same set of properties to be shared across multiple log messages. Thanks to @okikio for collaborating on the design! This feature is available for preview in 0.5.0-dev.60+f819929c.

• JSR: jsr.io/@logtape/logtape@0.5.0-
• npm: npmjs.com/package/@logtape/log

github.com/dahlia/logtape#cont

const logger = getLogger(["my-app", "my-module"]);
const ctx = logger.with({ userId: 1234, requestId: "abc" });
ctx.info `This log message will have the context (userId & requestId).`;
ctx.warn("Context can be used inside message template: {userId}, {requestId}.");
ALT text detailsconst logger = getLogger(["my-app", "my-module"]); const ctx = logger.with({ userId: 1234, requestId: "abc" }); ctx.info `This log message will have the context (userId & requestId).`; ctx.warn("Context can be used inside message template: {userId}, {requestId}.");
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

is a logging library for and . It provides a simple and flexible logging system that is easy to use and easy to extend. The highlights of LogTape are:

• Zero dependencies
• Designed to be used in libraries as well as apps
• Supports virtually every runtime: .js, , , edge functions, and browsers
• Structured logging
• Logger categories (names) are hierarchical
• Dead simple sink (destination) interface

logtape.org/

洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Released v0.4.2 of , which is a zero-dependency library for & ! Since this version, it work well on Workers out of box!

• JSR: jsr.io/@logtape/logtape@0.4.2
• npm: npmjs.com/package/@logtape/log

Fedify: an ActivityPub server framework's avatar
Fedify: an ActivityPub server framework

@fedify@hollo.social

offers robust logging capabilities through integration with LogTape. This feature allows you to easily debug and monitor your Fedify app!

To enable , simply install the @logtape/logtape package and configure it in your app's entry point:

import { configure, getConsoleSink } from "@logtape/logtape";

await configure({
  sinks: { console: getConsoleSink() },
  filters: {},
  loggers: [
    { category: "your-app", sinks: ["console"], level: "debug" },
    { category: "fedify",   sinks: ["console"], level: "info" },
  ],
});

Fedify uses hierarchical categories for fine-grained control over log output. Key categories include ["fedify", "federation", "http"] for HTTP requests/responses and ["fedify", "federation", "inbox"]/["fedify", "federation", "outbox"] for incoming/outgoing activities. (There are more categories.)

With integration, you gain valuable insights into your Fedify app's behavior, making troubleshooting and optimization much more straightforward!

https://fedify.dev/manual/log

洪 民憙 (Hong Minhee) 🤏🏼's avatar
洪 民憙 (Hong Minhee) 🤏🏼

@hongminhee@todon.eu

is a logging library for and . It provides a simple and flexible logging system that is easy to use and easy to extend. The highlights of LogTape are:

• Zero dependencies
• Designed to be used in libraries as well as apps
• Supports virtually every runtime: .js, , , edge functions, and browsers
• Structured logging
• Logger categories (names) are hierarchical
• Dead simple sink (destination) interface

github.com/dahlia/logtape

Screenshot: log messages printed out on the terminal
ALT text detailsScreenshot: log messages printed out on the terminal
Screenshot: log messages printed out on web browser's console
ALT text detailsScreenshot: log messages printed out on web browser's console
洪 民憙 (Hong Minhee)'s avatar
洪 民憙 (Hong Minhee)

@hongminhee@fosstodon.org

Thanks to @kitsonk, 's bug where it failed to load under .js when incorporated in a project from was fixed! The fix is now available at LogTape 0.4.1.

jsr.io/@logtape/logtape@0.4.1