adverse-sapphire•7mo ago

error on initializing i18nprovider

this is my code snippet function App() { const { t, i18n } = useTranslation(); const i18nProvider: I18nProvider = { translate: (key: string, options?: any) => t(key, options), changeLocale: (lang: string) => i18n.changeLanguage(lang), getLocale: () => i18n.language, }; This is my error Type '(key: string, options?: any) => string | TFunctionDetailedResult<string, any>' is not assignable to type 'Translate'. Type 'string | TFunctionDetailedResult<string, any>' is not assignable to type 'string'. Type 'TFunctionDetailedResult<string, any>' is not assignable to type 'string'.ts(2322) ITranslationContext.d.ts(3, 5): The expected type comes from property 'translate' which is declared here on type 'I18nProvider'

2 Replies

kapa.ai•7mo ago

Hi @jakshire01. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- The error you're encountering is due to TypeScript's strict type checking. The translate function in your i18nProvider is expected to return a string, but the t function from useTranslation can return a string or TFunctionDetailedResult<string, any>. To fix this, you need to ensure that the translate function always returns a string. You can do this by converting the result of the t function to a string. Here's how you can modify your code:

function App() {
  const { t, i18n } = useTranslation();

  const i18nProvider: I18nProvider = {
    translate: (key: string, options?: any) => String(t(key, options)),
    changeLocale: (lang: string) => i18n.changeLanguage(lang),
    getLocale: () => i18n.language,
  };
  // ...
}

function App() {
  const { t, i18n } = useTranslation();

  const i18nProvider: I18nProvider = {
    translate: (key: string, options?: any) => String(t(key, options)),
    changeLocale: (lang: string) => i18n.changeLanguage(lang),
    getLocale: () => i18n.language,
  };
  // ...
}

In this code, String(t(key, options)) ensures that the translate function always returns a string, which should resolve the TypeScript error. For more information on how to use i18nProvider, you can refer to the Refine documentation (https://refine.dev/docs/guides-concepts/i18n#creating-the-i18n-provider). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•7mo ago

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