ra-realtime
Version:
A saga enabling realtime updates for react-admin
118 lines (117 loc) • 5.64 kB
JavaScript
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
import { LOCATION_CHANGE } from 'react-router-redux';
import { takeLatest, call, put, take, cancelled } from 'redux-saga/effects';
import { CRUD_GET_LIST, CRUD_GET_ONE, FETCH_START, FETCH_END } from 'ra-core';
import omit from 'lodash/omit';
import buildAction from './buildAction';
import createObserverChannel from './createObserverChannel';
export var watchCrudActionsFactory = function (observeRequest) {
return function watchCrudActions(action) {
var params, _a, fetchType, resource, observer, realtimeChannel, payload, type, requestPayload, meta, raAction;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
params = action.payload, _a = action.meta, fetchType = _a.fetch, resource = _a.resource;
return [4 /*yield*/, call(observeRequest, fetchType, resource, params)];
case 1:
observer = _b.sent();
if (!observer)
return [2 /*return*/];
return [4 /*yield*/, call(createObserverChannel, observer)];
case 2:
realtimeChannel = _b.sent();
_b.label = 3;
case 3:
_b.trys.push([3, , 11, 13]);
_b.label = 4;
case 4:
if (!true) return [3 /*break*/, 10];
return [4 /*yield*/, take(realtimeChannel)];
case 5:
payload = _b.sent();
type = action.type, requestPayload = action.payload, meta = action.meta;
return [4 /*yield*/, [
put({
type: type + "_LOADING",
payload: requestPayload,
meta: omit(meta, 'fetch'),
}),
put({ type: FETCH_START }),
]];
case 6:
_b.sent();
return [4 /*yield*/, call(buildAction, action, payload)];
case 7:
raAction = _b.sent();
return [4 /*yield*/, put(raAction)];
case 8:
_b.sent();
return [4 /*yield*/, put({ type: FETCH_END })];
case 9:
_b.sent();
return [3 /*break*/, 4];
case 10: return [3 /*break*/, 13];
case 11: return [4 /*yield*/, cancelled() && realtimeChannel];
case 12:
if (_b.sent()) {
realtimeChannel.close();
}
return [7 /*endfinally*/];
case 13: return [2 /*return*/];
}
});
};
};
export var watchLocationChangeFactory = function (watchCrudActions) {
return function watchLocationChange() {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, takeLatest([CRUD_GET_LIST, CRUD_GET_ONE], watchCrudActions)];
case 1:
_a.sent();
return [2 /*return*/];
}
});
};
};
export default (function (observeQuery) {
return function realtimeSaga() {
var watchCrudActions;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
watchCrudActions = watchCrudActionsFactory(observeQuery);
return [4 /*yield*/, takeLatest(LOCATION_CHANGE, watchLocationChangeFactory(watchCrudActions))];
case 1:
_a.sent();
return [2 /*return*/];
}
});
};
});