White Paper: Demystifying Enterprise Cloud Modernization

Keyhole Software Architecture, AWS, Azure, Cloud, Keyhole Creations, Modernization Leave a Comment

Many IT budgets are consumed by maintaining existing applications and resources, and getting out from under the weight of these existing applications can be daunting—schedule is king, and making time to address modernization comes at the expense of current business needs. However, as the business world moves into the digital space to prepare to meet the next generation of customers and to compete globally, organizations can’t manage their applications in the same way as they have in the past—they must take them to the next level. 

Cloud technologies provide many of the building blocks to help businesses achieve these goals and prepare themselves for the future. This white paper is a solution-agnostic resource to help you understand enterprise cloud modernization and migration and to help you decide which strategy is right for your business. Are your applications ready for the new tomorrow?

Transferring Spring Batch Apps to AWS Cloud

Rik Scarborough AWS, Cloud, Development Technology, Spring, Spring Batch, Tutorial 1 Comment

The last few years have seen a lot of movement to bring applications that don’t require manual intervention from the mainframe to Unix, Linux, Windows servers, or even to the desktop. This concept is commonly known as batch programming, and Spring Batch has been the tool many of us are using to accomplish this. Another trend that is gaining steam is to move from an internally-hosted server to a cloud-hosted system.

In this post, we discuss multiple ways for transferring Spring Batch applications up to the AWS Cloud, including EC2, Docker, Lambda, and others. I concentrate on AWS in this post, but, from my experience in Google Cloud, the same ideas will apply…

Quick Start: AWS SQS + Spring Boot Processing FIFO Queues

Brandon Klimek AWS, Development Technology, Microservices, Spring Boot Leave a Comment

AWS SQS (Simple Queue Service) can provide developers with flexibility and scalability when building microservice application(s). In this quick start tutorial, we will demonstrate how to configure a FIFO queue for a fictional online marketplace.

What Is A FIFO Queue?

A FIFO (first in, first out) queue is used when the order of items or events is critical, or where duplicates items in the queue are not permitted. For example:

– Prevent a user from buying an item that isn’t available on a marketplace.

AWS Amplify GraphQL Queries with TypeScript and Hooks

Mat Warger AWS, Development Technology, JavaScript, React, Tutorial, TypeScript Leave a Comment

I’m a big fan of Amplify. I’m also a big fan of TypeScript. Amplify is not built with TypeScript, and to use it effectively, sometimes you need to give it a little help, especially when it comes to GraphQL. With the advent of hooks, we can create some nice utilities for ourselves that let us leverage the power of TypeScript with our GraphQL queries. Let’s see what that looks like.

I’ll be assuming familiarity with React and TypeScript, i…

Originally posted by Mat Warger on mw.codes April 19, 2019.

AWS Lambda With NestJS

Greg Emerick AWS, Development Technology, JavaScript, Node 4 Comments

In my previous blog post, I showed running a Spring Boot Java application in AWS Lambda. I discussed the pros and cons of using Java and Spring with Lambda. In this blog post, I’ll cover another Lambda option with NestJS. NestJS provides a framework that is not too different from a typical Spring application. It also addresses some of the negatives of using Java and Spring in a Lambda function.

To recap, AWS Lambda provides low cost compute with zero maintenance. Lambda runs your code on demand, without provisioned and managed servers. Lambda automatically runs and scales your code. You are charged for every 100ms your code executes and the number of times your code is triggered. Lambda has clear cost and maintenance benefits over typical on-premise or EC2 deployments. What does it take to run a Nest application as a Lambda? Does NestJS provide benefits over a Java Spring application?