64 lines
1.2 KiB
JavaScript
64 lines
1.2 KiB
JavaScript
const takeRight = require('lodash.takeright');
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const actions = {
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'UPDATE_STATS': (state, action) => {
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const data = (state[action.subscription] || []).concat([action.payload]);
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return {
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...state,
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[action.subscription]: takeRight(data, 50)
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};
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}
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};
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module.exports = (state, action) => {
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return !actions[action.type] ? state : actions[action.type](state, action);
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};
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module.exports.subscribe = (id) => (dispatch, getState) => {
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const {
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ws
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} = getState();
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const p = new Promise((resolve, reject) => {
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ws.subscribe(`/stats/${id}`, (update, flag) => {
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dispatch({
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type: 'UPDATE_STATS',
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payload: update,
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subscription: id
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});
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}, (err) => {
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if (err) {
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return reject(err);
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}
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resolve();
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});
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});
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return dispatch({
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action: 'SUBSCRIBE',
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payload: p
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});
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};
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module.exports.unsubscribe = (id) => (dispatch, getState) => {
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const {
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ws
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} = getState();
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const p = new Promise((resolve, reject) => {
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ws.unsubscribe(`/stats/${id}`, null, (err) => {
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if (err) {
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return reject(err);
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}
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resolve();
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});
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});
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return dispatch({
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action: 'UNSUBSCRIBE',
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payload: p
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});
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}; |