doFetchActiveLivestreams: add interval check
- Added a default minimum of 5 minutes between fetches. Clients can bypass this through `forceFetch` if needed.
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4 changed files with 31 additions and 17 deletions
1
flow-typed/livestream.js
vendored
1
flow-typed/livestream.js
vendored
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@ -26,6 +26,7 @@ declare type LivestreamState = {
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viewersById: {},
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fetchingActiveLivestreams: boolean,
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activeLivestreams: ?LivestreamInfo,
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lastFetchedActiveLivestreams: number,
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}
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declare type LivestreamInfo = {
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@ -354,4 +354,5 @@ export const FETCH_NO_SOURCE_CLAIMS_FAILED = 'FETCH_NO_SOURCE_CLAIMS_FAILED';
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export const VIEWERS_RECEIVED = 'VIEWERS_RECEIVED';
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export const FETCH_ACTIVE_LIVESTREAMS_STARTED = 'FETCH_ACTIVE_LIVESTREAMS_STARTED';
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export const FETCH_ACTIVE_LIVESTREAMS_FAILED = 'FETCH_ACTIVE_LIVESTREAMS_FAILED';
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export const FETCH_ACTIVE_LIVESTREAMS_SKIPPED = 'FETCH_ACTIVE_LIVESTREAMS_SKIPPED';
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export const FETCH_ACTIVE_LIVESTREAMS_COMPLETED = 'FETCH_ACTIVE_LIVESTREAMS_COMPLETED';
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@ -33,19 +33,26 @@ export const doFetchNoSourceClaims = (channelId: string) => async (dispatch: Dis
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}
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};
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export const doFetchActiveLivestreams = () => {
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return async (dispatch: Dispatch) => {
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dispatch({
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type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_STARTED,
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});
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const FETCH_ACTIVE_LIVESTREAMS_MIN_INTERVAL_MS = 5 * 60 * 1000;
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export const doFetchActiveLivestreams = (forceFetch: boolean) => {
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return async (dispatch: Dispatch, getState: GetState) => {
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const state = getState();
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const now = Date.now();
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const timeDelta = now - state.livestream.lastFetchedActiveLivestreams;
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if (!forceFetch && timeDelta < FETCH_ACTIVE_LIVESTREAMS_MIN_INTERVAL_MS) {
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dispatch({ type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_SKIPPED });
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return;
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}
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dispatch({ type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_STARTED });
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fetch(LIVESTREAM_LIVE_API)
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.then((res) => res.json())
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.then((res) => {
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if (!res.data) {
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dispatch({
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type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED,
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});
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dispatch({ type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED });
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return;
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}
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@ -88,19 +95,18 @@ export const doFetchActiveLivestreams = () => {
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dispatch({
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type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_COMPLETED,
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data: activeLivestreams,
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data: {
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activeLivestreams,
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lastFetchedActiveLivestreams: now,
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},
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});
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})
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.catch(() => {
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dispatch({
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type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED,
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});
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dispatch({ type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED });
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});
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})
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.catch((err) => {
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dispatch({
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type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED,
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});
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dispatch({ type: ACTIONS.FETCH_ACTIVE_LIVESTREAMS_FAILED });
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});
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};
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};
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@ -7,6 +7,7 @@ const defaultState: LivestreamState = {
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viewersById: {},
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fetchingActiveLivestreams: false,
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activeLivestreams: null,
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lastFetchedActiveLivestreams: 0,
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};
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export default handleActions(
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@ -45,8 +46,13 @@ export default handleActions(
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return { ...state, fetchingActiveLivestreams: false };
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},
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[ACTIONS.FETCH_ACTIVE_LIVESTREAMS_COMPLETED]: (state: LivestreamState, action: any) => {
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const activeLivestreams: LivestreamInfo = action.data;
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return { ...state, fetchingActiveLivestreams: false, activeLivestreams };
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const { activeLivestreams, lastFetchedActiveLivestreams } = action.data;
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return {
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...state,
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fetchingActiveLivestreams: false,
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activeLivestreams,
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lastFetchedActiveLivestreams,
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};
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},
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},
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defaultState
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