Category: Database

Introduction Web applications use counter operations to deliver interactive user experiences. Whether tracking social media engagement metrics or managing e-commerce inventory levels, these operations must be both reliable and scalable. This post walks you through two architectural patterns that deliver predictable performance. To illustrate these patterns, let us consider a social media application post-liking feature. […]

Introduction Bob’s Used Books is an eCommerce application developed to provide the .NET community with a real world .NET application sample that uses multiple AWS frameworks and services. The original monolithic version of Bob’s Used Books was discussed in a previous blog series, Bob’s Used Books: A .NET Sample Application (Part1, Part2 and Part3), with […]

Introduction Large language models (LLMs) are driving the rapid growth of semantic search applications. Semantic search understands both user intent and content context, rather than just matching keywords. LLMs enhance this capability through their advanced language processing abilities. These AI models can process multiple content formats, including text, images, audio, and video. The users receive […]

Introduction Welcome to the second post in the Bob’s Used Books blog post series. In the first post I discussed how to get started with Bob’s Used Books and described the different debug and deployment modes you can use to test and run the application. In this post I will dive into the architecture of […]

Introduction The best sample applications are simple to understand, but have enough complexity to demonstrate real-world usage. Our new open-source .NET sample application, Bob’s Used Books, provides the .NET community with a simple but real-world .NET application that leverages multiple AWS frameworks and services. Bob’s Used Books is a simple eCommerce application that sells fictional […]

This is Part 2 in a series on creating an Amazon Alexa Skill with AWS Lambda and Amazon DynamoDB. Please look at Part 1: Creating Data for the Skill to see the prerequisites on setting up the data source for our skill. In this part, the Alexa Skill we will build will return information about […]

This blog series will walk you through the process of creating an Amazon Alexa skill that queries data from an Amazon DynamoDB table. Part 1 focuses on creating the data source that the skill will query and part 2 focuses on creating the AWS Lambda function to query the data and creating the skill. In […]