Updated mercure integration so that the hook accepts a list of topics to subscribe

src/mercure/helpers/Topics.ts

@@ -0,0 +1,7 @@
+export class Topics {
+  public static visits = () => 'https://shlink.io/new-visit';
+
+  public static shortUrlVisits = (shortCode: string) => `https://shlink.io/new-visit/${shortCode}`;
+
+  public static orphanVisits = () => 'https://shlink.io/new-orphan-visit';
+}

src/mercure/helpers/boundToMercureHub.tsx

@@ -12,7 +12,7 @@ export interface MercureBoundProps {
 
 export function boundToMercureHub<T = {}>(
   WrappedComponent: FC<MercureBoundProps & T>,
-  getTopicForProps: (props: T) => string,
+  getTopicsForProps: (props: T) => string[],
 ) {
   const pendingUpdates = new Set<CreateVisit>();
 
@@ -22,7 +22,7 @@ export function boundToMercureHub<T = {}>(
 
     useEffect(() => {
       const onMessage = (visit: CreateVisit) => interval ? pendingUpdates.add(visit) : createNewVisits([ visit ]);
-      const closeEventSource = bindToMercureTopic(mercureInfo, getTopicForProps(props), onMessage, loadMercureInfo);
+      const closeEventSource = bindToMercureTopic(mercureInfo, getTopicsForProps(props), onMessage, loadMercureInfo);
 
       if (!interval) {
         return closeEventSource;

src/mercure/helpers/index.ts

@@ -1,24 +1,31 @@
 import { EventSourcePolyfill as EventSource } from 'event-source-polyfill';
 import { MercureInfo } from '../reducers/mercureInfo';
 
-export const bindToMercureTopic = <T>(mercureInfo: MercureInfo, topic: string, onMessage: (message: T) => void, onTokenExpired: Function) => { // eslint-disable-line max-len
+export const bindToMercureTopic = <T>(mercureInfo: MercureInfo, topics: string[], onMessage: (message: T) => void, onTokenExpired: Function) => { // eslint-disable-line max-len
   const { mercureHubUrl, token, loading, error } = mercureInfo;
 
   if (loading || error || !mercureHubUrl) {
     return undefined;
   }
 
-  const hubUrl = new URL(mercureHubUrl);
+  const onEventSourceMessage = ({ data }: { data: string }) => onMessage(JSON.parse(data) as T);
+  const onEventSourceError = ({ status }: { status: number }) => status === 401 && onTokenExpired();
 
-  hubUrl.searchParams.append('topic', topic);
-  const es = new EventSource(hubUrl, {
-    headers: {
-      Authorization: `Bearer ${token}`,
-    },
+  const subscriptions: EventSource[] = topics.map((topic) => {
+    const hubUrl = new URL(mercureHubUrl);
+
+    hubUrl.searchParams.append('topic', topic);
+    const es = new EventSource(hubUrl, {
+      headers: {
+        Authorization: `Bearer ${token}`,
+      },
+    });
+
+    es.onmessage = onEventSourceMessage;
+    es.onerror = onEventSourceError;
+
+    return es;
   });
 
-  es.onmessage = ({ data }: { data: string }) => onMessage(JSON.parse(data) as T);
-  es.onerror = ({ status }: { status: number }) => status === 401 && onTokenExpired();
-
-  return () => es.close();
+  return () => subscriptions.forEach((es) => es.close());
 };

src/servers/Overview.tsx

@@ -10,6 +10,7 @@ import { boundToMercureHub } from '../mercure/helpers/boundToMercureHub';
 import { CreateShortUrlProps } from '../short-urls/CreateShortUrl';
 import { VisitsOverview } from '../visits/reducers/visitsOverview';
 import { Versions } from '../utils/helpers/version';
+import { Topics } from '../mercure/helpers/Topics';
 import { isServerWithId, SelectedServer } from './data';
 import './Overview.scss';
 
@@ -119,4 +120,4 @@ export const Overview = (
       </Card>
     </>
   );
-}, () => 'https://shlink.io/new-visit');
+}, () => [ Topics.visits(), Topics.orphanVisits() ]);

src/short-urls/ShortUrlsList.tsx

@@ -9,6 +9,7 @@ import { determineOrderDir, OrderDir } from '../utils/utils';
 import { isReachableServer, SelectedServer } from '../servers/data';
 import { boundToMercureHub } from '../mercure/helpers/boundToMercureHub';
 import { parseQuery } from '../utils/helpers/query';
+import { Topics } from '../mercure/helpers/Topics';
 import { ShortUrlsList as ShortUrlsListState } from './reducers/shortUrlsList';
 import { OrderableFields, ShortUrlsListParams, SORTABLE_FIELDS } from './reducers/shortUrlsListParams';
 import { ShortUrlsTableProps } from './ShortUrlsTable';
@@ -98,6 +99,6 @@ const ShortUrlsList = (ShortUrlsTable: FC<ShortUrlsTableProps>) => boundToMercur
       </Card>
     </>
   );
-}, () => 'https://shlink.io/new-visit');
+}, () => [ Topics.visits() ]);
 
 export default ShortUrlsList;

src/tags/TagsList.tsx

@@ -8,6 +8,7 @@ import { Result } from '../utils/Result';
 import { ShlinkApiError } from '../api/ShlinkApiError';
 import { TagsList as TagsListState } from './reducers/tagsList';
 import { TagCardProps } from './TagCard';
+import { Topics } from '../mercure/helpers/Topics';
 
 const { ceil } = Math;
 const TAGS_GROUPS_AMOUNT = 4;
@@ -75,6 +76,6 @@ const TagsList = (TagCard: FC<TagCardProps>) => boundToMercureHub((
       {renderContent()}
     </>
   );
-}, () => 'https://shlink.io/new-visit');
+}, () => [ Topics.visits() ]);
 
 export default TagsList;

src/visits/OrphanVisits.tsx

@@ -1,6 +1,7 @@
 import { RouteComponentProps } from 'react-router';
 import { boundToMercureHub } from '../mercure/helpers/boundToMercureHub';
 import { ShlinkVisitsParams } from '../api/types';
+import { Topics } from '../mercure/helpers/Topics';
 import { TagVisits as TagVisitsState } from './reducers/tagVisits';
 import VisitsStats from './VisitsStats';
 import { OrphanVisitsHeader } from './OrphanVisitsHeader';
@@ -26,4 +27,4 @@ export const OrphanVisits = boundToMercureHub(({
   >
     <OrphanVisitsHeader orphanVisits={orphanVisits} goBack={goBack} />
   </VisitsStats>
-), () => 'https://shlink.io/new-orphan-visit');
+), () => [ Topics.orphanVisits() ]);

src/visits/ShortUrlVisits.tsx

@@ -3,6 +3,7 @@ import { RouteComponentProps } from 'react-router';
 import { boundToMercureHub } from '../mercure/helpers/boundToMercureHub';
 import { ShlinkVisitsParams } from '../api/types';
 import { parseQuery } from '../utils/helpers/query';
+import { Topics } from '../mercure/helpers/Topics';
 import { ShortUrlVisits as ShortUrlVisitsState } from './reducers/shortUrlVisits';
 import ShortUrlVisitsHeader from './ShortUrlVisitsHeader';
 import { ShortUrlDetail } from './reducers/shortUrlDetail';
@@ -45,6 +46,6 @@ const ShortUrlVisits = boundToMercureHub(({
       <ShortUrlVisitsHeader shortUrlDetail={shortUrlDetail} shortUrlVisits={shortUrlVisits} goBack={goBack} />
     </VisitsStats>
   );
-}, ({ match }) => `https://shlink.io/new-visit/${match.params.shortCode}`);
+}, ({ match }) => [ Topics.shortUrlVisits(match.params.shortCode) ]);
 
 export default ShortUrlVisits;

src/visits/TagVisits.tsx

@@ -2,6 +2,7 @@ import { RouteComponentProps } from 'react-router';
 import { boundToMercureHub } from '../mercure/helpers/boundToMercureHub';
 import ColorGenerator from '../utils/services/ColorGenerator';
 import { ShlinkVisitsParams } from '../api/types';
+import { Topics } from '../mercure/helpers/Topics';
 import { TagVisits as TagVisitsState } from './reducers/tagVisits';
 import TagVisitsHeader from './TagVisitsHeader';
 import VisitsStats from './VisitsStats';
@@ -27,6 +28,6 @@ const TagVisits = (colorGenerator: ColorGenerator) => boundToMercureHub(({
       <TagVisitsHeader tagVisits={tagVisits} goBack={goBack} colorGenerator={colorGenerator} />
     </VisitsStats>
   );
-}, () => 'https://shlink.io/new-visit');
+}, () => [ Topics.visits() ]);
 
 export default TagVisits;

test/mercure/helpers/index.test.tsx

@@ -20,7 +20,7 @@ describe('helpers', () => {
       [ Mock.of<MercureInfo>({ loading: false, error: false, mercureHubUrl: undefined }) ],
       [ Mock.of<MercureInfo>({ loading: true, error: true, mercureHubUrl: undefined }) ],
     ])('does not bind an EventSource when loading, error or no hub URL', (mercureInfo) => {
-      bindToMercureTopic(mercureInfo, '', identity, identity);
+      bindToMercureTopic(mercureInfo, [ '' ], identity, identity);
 
       expect(EventSource).not.toHaveBeenCalled();
       expect(onMessage).not.toHaveBeenCalled();
@@ -40,7 +40,7 @@ describe('helpers', () => {
         error: false,
         mercureHubUrl,
         token,
-      }, topic, onMessage, onTokenExpired);
+      }, [ topic ], onMessage, onTokenExpired);
 
       expect(EventSource).toHaveBeenCalledWith(hubUrl, {
         headers: {