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Serverless + CDK Automation + Integration Patterns = AWSome!

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Pragya Keshap answered on February 13, 2023 Popularity 2/10 Helpfulness 1/10

answer Serverless + CDK Automation + Integration Patterns = AWSome!

Serverless + CDK Automation + Integration Patterns = AWSome!

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AWS Serverless will be our application development framework.

▪ AWS CDK is IaC tool that we will develop whole infrastructure with typescript coding

▪ Integration Patterns with Queue-Chaning, Publish-Subscribe and Fan-out design patterns

▪ AWSome Microservices

'use strict';
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) {
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    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
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            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; }
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        } 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 };
    }
};
var CircuitBreaker = require('circuitbreaker-lambda');
var message;
var options = {
    fallback: fallbackFunction,
    failureThreshold: 3,
    successThreshold: 2,
    timeout: 10000
};
function unreliableFunction() {
    return new Promise(function (resolve, reject) {
        if (Math.random() < 0.6) {
            resolve({ data: 'Success' });
            message = 'Success';
        }
        else {
            reject({ data: 'Failed' });
            message = 'Failed';
        }
    });
}
function fallbackFunction() {
    return new Promise(function (resolve, reject) {
        resolve({ data: 'Expensive Fallback Successful' });
        message = 'Fallback';
    });
}
exports.handler = function (event) { return __awaiter(void 0, void 0, void 0, function () {
    var circuitBreaker, response;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0:
                circuitBreaker = new CircuitBreaker(unreliableFunction, options);
                return [4 /*yield*/, circuitBreaker.fire()];
            case 1:
                _a.sent();
                response = {
                    statusCode: 200,
                    body: JSON.stringify({
                        message: message
                    })
                };
                return [2 /*return*/, response];
        }
    });
}); };

https://github.com/cdk-patterns/serverless

Popularity 2/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: automation integration-patterns python serverless

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Contributed on Feb 13 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Serverless + CDK Automation + Integration Patterns = AWSome!

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