Added RU and KO locales

[gefestdev]

Summary by CodeRabbit

Release Notes

• New Features
  • Added Korean language support with localized error messages, alerts, dialogs, and UI labels across the application
  • Added Russian language support with localized error messages, alerts, dialogs, and UI labels across the application

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Walkthrough

Two new localization files added to the frontend: Korean and Russian translations providing error messages, success notifications, UI labels, alerts, dialogs, flow-related text, settings, admin features, authentication, and various component-specific strings with template placeholders.

Changes

Cohort / File(s)	Summary
Localization Resources src/frontend/src/locales/ko.json, src/frontend/src/locales/ru.json	Added Korean and Russian translation files with 388 key-value pairs each covering errors, alerts, dialogs, chat, flows, settings, admin, nodes, auth, and UI labels with template variables ({{maxSizeMB}}, {{count}}, {{flowType}}, etc.).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

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Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

❌ Failed checks (1 error)

Check name	Status	Explanation	Resolution
Test Coverage For New Implementations	❌ Error	PR adds two new locale files (ko.json and ru.json) without any corresponding test files or validation mechanisms to ensure JSON validity and key consistency.	Add a locale validation test file using Jest to validate JSON structure, ensure all keys from en.json are present, and verify no formatting issues exist.

✅ Passed checks (6 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Added RU and KO locales' directly and accurately describes the main change: adding Russian and Korean localization files to the frontend.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Test Quality And Coverage	✅ Passed	Pull request adds localization JSON files for Korean and Russian languages. These are data files containing UI translations, not code implementations requiring unit tests, async testing, or API endpoint validation.
Test File Naming And Structure	✅ Passed	The custom check for Test File Naming and Structure is not applicable as this PR only adds localization resource files without any test files.
Excessive Mock Usage Warning	✅ Passed	No test files are modified in this PR, which only updates localization resource files, so the custom check for excessive mock usage is not applicable and passes by default.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/frontend/src/locales/ko.json`:
- Line 3: Fix the typo in the Korean translation for the key
"errors.missedFields" in src/frontend/src/locales/ko.json: change "저런! 뭔가 빠뜌린 것
같습니다." to "저런! 뭔가 빠뜨린 것 같습니다." so the correct spelling "빠뜨린" is used; update
only the value for the "errors.missedFields" key.

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Fix all unresolved CodeRabbit comments on this PR:

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• Create a new PR with the fixes

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Configuration used: Path: .coderabbit.yaml

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📥 Commits

Reviewing files that changed from the base of the PR and between 9aae6de and 1de0ae1.

📒 Files selected for processing (2)

• src/frontend/src/locales/ko.json
• src/frontend/src/locales/ru.json

[gefestdev]

Fixes #12740

[YeonghyeonKO]

@gefestdev Hi, thanks for your work on adding RU and KO locales!

Just a heads-up — I actually reported the underlying crash caused by a missing default locale fallback and opened a PR that fixes it and also adds the Korean locale a few days ago.

You can find them here:

• Issue: bug(i18n): loadLanguage() crashes on unsupported browser locale (missing fallback) #12735
• PR: feat(i18n): add Korean locale and graceful fallback for missing locales #12733

It might be worth coordinating so our changes don’t overlap — perhaps your PR could focus on the Russian locale, and we could rebase on top of #12733 once the fallback fix is merged. Happy to collaborate however works best. 🙌

[gefestdev]

@gefestdev Hi, thanks for your work on adding RU and KO locales!

Just a heads-up — I actually reported the underlying crash caused by a missing default locale fallback and opened a PR that fixes it and also adds the Korean locale a few days ago.

You can find them here:

* Issue: [bug(i18n): loadLanguage() crashes on unsupported browser locale (missing fallback) #12735](https://github.com/langflow-ai/langflow/issues/12735)

* PR: [feat(i18n): add Korean locale and graceful fallback for missing locales #12733](https://github.com/langflow-ai/langflow/pull/12733)

It might be worth coordinating so our changes don’t overlap — perhaps your PR could focus on the Russian locale, and we could rebase on top of #12733 once the fallback fix is merged. Happy to collaborate however works best. 🙌

Hey, @YeonghyeonKO! I will be able to merge my locale into your branch for some time.

[YeonghyeonKO]

@gefestdev Thanks!
I m looking forward to communicate with maintainers and our PR to be reviewed and merged soon :)

[gefestdev]

@YeonghyeonKO
Can you tell me how we can combine both of our changes? :)