Improved useFetch

Related to #19

front/src/api/announcements/index.ts

@@ -0,0 +1,24 @@
+import { API_URL } from '../../config'
+import { FiltersType, URLEncodeFilters } from '../../utils/filters'
+import { Announcement } from '../announcement/types'
+import { AnnouncementsResponse } from './types'
+
+const initialAnnouncements: Announcement[] = []
+
+const composeAnnouncementsURL = (filters: FiltersType) =>
+    API_URL + '/announcements?' + new URLSearchParams(URLEncodeFilters(filters)).toString()
+
+const processAnnouncements = (data: AnnouncementsResponse): Announcement[] => {
+    const annList = data.list_of_announcements
+
+    return annList.map(ann => ({
+        ...ann,
+        lat: ann.latitude,
+        lng: ann.longtitude,
+        bestBy: ann.best_by,
+        bookedBy: ann.booked_by,
+        userId: ann.user_id
+    }))
+}
+
+export { initialAnnouncements, composeAnnouncementsURL, processAnnouncements }