38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
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import { HttpInterceptorFn } from '@angular/common/http';
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import { inject } from '@angular/core';
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import { LocationService } from '../services/location.service';
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import { LanguageService } from '../services/language.service';
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import { environment } from '../../environments/environment';
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/**
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* Interceptor that attaches X-Region and X-Language headers
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* to every outgoing request aimed at our API.
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*
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* The backend reads these headers to:
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* - filter catalog by region
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* - return translated content in the requested language
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*/
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export const apiHeadersInterceptor: HttpInterceptorFn = (req, next) => {
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// Only attach headers to our own API requests
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if (!req.url.startsWith(environment.apiUrl)) {
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return next(req);
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}
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const locationService = inject(LocationService);
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const languageService = inject(LanguageService);
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const regionId = locationService.regionId(); // '' when global
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const lang = languageService.currentLanguage(); // 'ru' | 'en' | 'hy'
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let headers = req.headers;
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if (regionId) {
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headers = headers.set('X-Region', regionId);
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}
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if (lang) {
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headers = headers.set('X-Language', lang);
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}
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return next(req.clone({ headers }));
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};
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