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22 lines
947 B
Markdown
22 lines
947 B
Markdown
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---
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"@logto/core": patch
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---
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prevent i18n context contamination by using request-scoped instances
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This bug fix resolves a concurrency issue in i18n handling by moving from a global i18next instance to request-scoped instances.
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### Problem
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When handling concurrent requests:
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- The shared global `i18next` instance's language was being modified via `changeLanguage()` calls.
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- This could lead to race conditions where requests might receive translations in unexpected languages.
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- Particularly problematic in multi-tenant environments with different language requirements.
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### Solution
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- Updated `koaI18next` middleware to create a cloned i18next instance for each request.
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- Attach the request-scoped instance to Koa context (`ctx.i18n`) All subsequent middleware and handlers should now use `ctx.i18n` instead of the global `i18next` instance.
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- Maintains the global instance for initialization while preventing cross-request contamination
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