@equinor/fusion-react-power-bi/dist/Report/store/epics/access-token.js

React component for displaying an person information

import { from, of, merge, fromEvent } from 'rxjs';
import { filter, switchMap, map, catchError, takeUntil, delay, withLatestFrom, throttleTime } from 'rxjs/operators';
import { isActionOf } from 'typesafe-actions';
import actions from '../actions/access';
const MINUTES_BEFORE_EXPIRATION = 1;
const REFRESH_OFFSET = MINUTES_BEFORE_EXPIRATION * 60 * 1000;
const accessTokenExpireTime = (token, offset = REFRESH_OFFSET) => {
    const expires = token.expirationUtc.getTime();
    const now = new Date(Date.now()).getTime();
    return expires - now - offset;
};
const shouldUpdateToken = (token, offset = REFRESH_OFFSET) => accessTokenExpireTime(token, offset) <= 0;
/**
 * Epic for access token
 * Will fetch a token on request, cancel on signal and handle error
 * When token is successfully fetched, a refresh will be scehduled
 * Also handles request for refresh (uses store id) and dispatches request for new token
 */
export const accessToken = (action$, state$, { clients }) => {
    const request$ = action$.pipe(filter(isActionOf(actions.fetchAccessToken.request)), switchMap((action) => from(clients.acquireAccessToken(action.payload.reportId)).pipe(map((res) => actions.fetchAccessToken.success(res)), catchError((error) => of(actions.fetchAccessToken.failure({ action, error }))), takeUntil(action$.pipe(filter(isActionOf(actions.fetchAccessToken.cancel)))))));
    /**
     * when access token is acquired, schedule a refresh
     */
    const acquired$ = action$.pipe(filter(isActionOf(actions.fetchAccessToken.success)), switchMap((action) => {
        const expires = accessTokenExpireTime(action.payload);
        return of(actions.refreshAccessToken({ reason: 'expired since acquired' })).pipe(delay(expires));
    }));
    /**
     * request new token when window tab is activated
     */
    const activated$ = fromEvent(document, 'visibilitychange').pipe(
    // only trigger when tab is active
    filter(() => !document.hidden), 
    // include current state
    withLatestFrom(state$), 
    // select token from state
    map(([_, state]) => state.token), 
    // only continue of a token exists
    filter((x) => !!x), 
    // only continue if token expired
    filter(shouldUpdateToken), 
    // dispatch request for update of token
    map(() => actions.refreshAccessToken({ reason: 'tab activated' })));
    const refresh$ = action$.pipe(filter(isActionOf(actions.refreshAccessToken)), withLatestFrom(state$), throttleTime(60 * 1000), map(([_, state]) => actions.fetchAccessToken.request({ reportId: state.id, silent: true })));
    return merge(request$, acquired$, activated$, refresh$);
};
export default accessToken;
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