i18next-custom-backend.js

export const loadResourcesAtRuntime = async (meta: SupportedLanguages, bundleLocation: string) => {

    let resources: Resource = {};

    for (const locale of Object.values(meta)) {
        for (const [ nsKey, nsPath ] of Object.entries(locale.paths)) {
            try {
                const response = await fetch(`${ bundleLocation }/${ nsPath }`);
                const payload = await response.json();

                resources = {
                    ...resources,
                    [ locale.code ]: {
                        ...resources[ locale.code ],
                        [ nsKey ]: payload as any
                    }
                }
            } catch (e) {
                console.log(e);
            }
        }
    }

    return resources;
};