@omgovich/firebase-functions-rate-limiter
Version:
JS/TS library that allows you to set per - time, per - user or per - anything limits for calling Firebase cloud functions
127 lines • 6.71 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.RealtimeDbPersistenceProvider = void 0;
var ow_1 = require("ow");
var RealtimeDbPersistenceProvider = /** @class */ (function () {
/* istanbul ignore next (debugFn), because typescript injects if for default parameters */
function RealtimeDbPersistenceProvider(database, debugFn) {
if (debugFn === void 0) { debugFn = function (msg) {
/* */
}; }
this.database = database;
(0, ow_1.default)(this.database, "database", ow_1.default.object);
this.debugFn = debugFn;
}
RealtimeDbPersistenceProvider.prototype.updateAndGet = function (collectionName, recordName, updaterFn) {
return __awaiter(this, void 0, void 0, function () {
var ref, response, snapshot, committed, data;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
ref = this.getDatabaseRef(collectionName, recordName);
return [4 /*yield*/, ref.transaction(function (dataToUpdate) { return _this.wrapUpdaterFn(updaterFn)(dataToUpdate); })];
case 1:
response = _a.sent();
snapshot = response.snapshot, committed = response.committed;
/* istanbul ignore next because this is not testable locally */
if (!snapshot)
throw new Error("RealtimeDbPersistenceProvider: realtime db didn't respond with data");
/* istanbul ignore next because this is not testable locally */
if (!committed)
throw new Error("RealtimeDbPersistenceProvider: could not save data");
data = snapshot.val();
if (data === null)
return [2 /*return*/, this.createEmptyRecord()];
else
return [2 /*return*/, data];
return [2 /*return*/];
}
});
});
};
RealtimeDbPersistenceProvider.prototype.get = function (collectionName, recordName) {
return __awaiter(this, void 0, void 0, function () {
var snapshot, data;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getDatabaseRef(collectionName, recordName).once("value")];
case 1:
snapshot = _a.sent();
data = snapshot.val();
if (data === null)
return [2 /*return*/, this.createEmptyRecord()];
else
return [2 /*return*/, data];
return [2 /*return*/];
}
});
});
};
RealtimeDbPersistenceProvider.prototype.setDebugFn = function (debugFn) {
this.debugFn = debugFn;
};
RealtimeDbPersistenceProvider.prototype.wrapUpdaterFn = function (updaterFn) {
var _this = this;
return function (data) {
_this.debugFn("RealtimeDbPersistenceProvider: updateFn called with data of type" + typeof data);
if (data === null) {
var emptyRecord = _this.createEmptyRecord();
var updatedPr = updaterFn(emptyRecord);
return updatedPr;
}
else {
var updatedPr = updaterFn(data);
return updatedPr;
}
};
};
RealtimeDbPersistenceProvider.prototype.getDatabaseRef = function (collectionName, recordName) {
var refName = "".concat(collectionName, "/").concat(recordName);
return this.database.ref(refName);
};
RealtimeDbPersistenceProvider.prototype.createEmptyRecord = function () {
return {
u: [],
};
};
return RealtimeDbPersistenceProvider;
}());
exports.RealtimeDbPersistenceProvider = RealtimeDbPersistenceProvider;
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