aws-event-stream
Version:
A simple and fast EventStore for AWS.
115 lines • 5.85 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.SNSPublisher = exports.Protocols = void 0;
var aws_sdk_1 = require("aws-sdk");
var Protocols;
(function (Protocols) {
Protocols["HTTP"] = "http";
Protocols["HTTPS"] = "https";
})(Protocols = exports.Protocols || (exports.Protocols = {}));
/**
* A Publisher that use SQS to message communications.
*/
var SNSPublisher = /** @class */ (function () {
function SNSPublisher(url, awsconfig, snsOptions) {
aws_sdk_1.config.update(awsconfig);
this.sns = new aws_sdk_1.SNS(snsOptions ? { endpoint: snsOptions.endpointUrl,
httpOptions: snsOptions.httpOptions,
maxRetries: snsOptions.maxRetries } : undefined);
this.url = url;
this.snsOption = snsOptions;
}
SNSPublisher.prototype.publish = function (message) {
return __awaiter(this, void 0, void 0, function () {
var snsData;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
snsData = {
Message: JSON.stringify(message),
MessageAttributes: {
eventType: {
DataType: 'String',
StringValue: message.event.eventType,
}
},
TopicArn: this.url,
};
return [4 /*yield*/, this.sns.publish(snsData).promise()];
case 1: return [2 /*return*/, (_a.sent()).MessageId];
}
});
});
};
SNSPublisher.prototype.subscribe = function (_, __) {
return __awaiter(this, void 0, void 0, function () {
var protocolRegex, snsParams;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this.snsOption === undefined) {
throw new Error('SNSOption is required to subscriber');
}
protocolRegex = RegExp("^" + this.snsOption.protocol + ":");
if (!protocolRegex.exec(this.snsOption.endpointSubscriber)) {
throw new Error('Protocol and endpoint subscriber does not match');
}
snsParams = {
Endpoint: this.snsOption.endpointSubscriber,
Protocol: this.snsOption.protocol,
TopicArn: this.url,
};
return [4 /*yield*/, this.sns.subscribe(snsParams).promise()];
case 1:
_a.sent();
return [2 /*return*/, Promise.resolve({
remove: function () {
_this.sns.unsubscribe().promise();
return Promise.resolve();
}
})];
}
});
});
};
return SNSPublisher;
}());
exports.SNSPublisher = SNSPublisher;
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