jiti-meet/react/features/mobile/navigation/middleware.js

import { appNavigate } from '../../app/actions';
import { CONFERENCE_FAILED } from '../../base/conference/actionTypes';
import { JitsiConferenceErrors } from '../../base/lib-jitsi-meet';
import { MiddlewareRegistry } from '../../base/redux';


MiddlewareRegistry.register(store => next => action => {
    switch (action.type) {

    case CONFERENCE_FAILED:
        return _conferenceFailed(store, next, action);
    }

    return next(action);
});

/**
 * Function to handle the conference failed event and navigate the user to the lobby screen
 * based on the failure reason.
 *
 * @param {Object} store - The Redux store.
 * @param {Function} next - The Redux next function.
 * @param {Object} action - The Redux action.
 * @returns {Object}
 */
function _conferenceFailed({ dispatch }, next, action) {
    const { error } = action;

    // We need to cover the case where knocking participant
    // is rejected from entering the conference
    if (error.name === JitsiConferenceErrors.CONFERENCE_ACCESS_DENIED) {
        dispatch(appNavigate(undefined));
    }

    return next(action);
}