remove poll altogether

client/lib/source/poll-source.ts

@@ -1,34 +0,0 @@
-import { from, Observable, of, repeat } from 'rxjs'
-import { concatMap, take } from 'rxjs/operators'
-import { Store } from '../store'
-import { Http, Update } from '../types'
-import { Source } from './source'
-
-export type PollConfig = {
-  cooldown: number
-}
-
-export class PollSource<T> implements Source<T> {
-  constructor(
-    private readonly pollConfig: PollConfig,
-    private readonly http: Http<T>,
-  ) {}
-
-  watch$({ sequence$ }: Store<T>): Observable<Update<T> | null> {
-    return sequence$.pipe(
-      concatMap(seq => this.http.getRevisions(seq)),
-      take(1),
-      concatMap(res => {
-        // If Revision[]
-        if (Array.isArray(res)) {
-          // Convert Revision[] it into Observable<Revision> OR return null
-          return res.length ? from(res) : of(null)
-          // If Dump<T>
-        }
-        // Convert Dump<T> into Observable<Dump<T>>
-        return of(res)
-      }),
-      repeat({ delay: this.pollConfig.cooldown }),
-    )
-  }
-}

client/lib/source/source.ts

@@ -3,5 +3,5 @@ import { Store } from '../store'
 import { Update } from '../types'
 
 export interface Source<T> {
-  watch$(store?: Store<T>): Observable<Update<T> | null>
+  watch$(store?: Store<T>): Observable<Update<T>>
 }

client/lib/source/ws-source.ts

@@ -7,6 +7,6 @@ export class WebsocketSource<T> implements Source<T> {
   constructor(private readonly url: string) {}
 
   watch$(): Observable<Update<T>> {
-    return webSocket<Update<T>>(this.url).pipe(timeout({ first: 60000 }))
+    return webSocket<Update<T>>(this.url).pipe(timeout({ first: 21000 }))
   }
 }