When working on complex projects, you’ll inevitably encounter situations where you need to undo changes from a specific commit that’s buried several commits back in your history. Recently, I faced this exact scenario when commit 1d814e5 needed to be reverted from our development branch, but it wasn’t the most recent commit. This post explores the safest and most effective ways to handle this situation.

The Challenge

Looking at a typical git reflog, you might see something like this:

Building modern applications often requires the ability to perform full-text searches with fuzzy matching capabilities on data that’s primarily stored in NoSQL databases like DynamoDB. While DynamoDB excels at fast key-based lookups and can handle massive scale, it lacks the sophisticated search capabilities that applications need for features like autocomplete, typo-tolerant search, and complex text analysis. OpenSearch (the open-source fork of Elasticsearch) provides these advanced search capabilities, but keeping it synchronized with your primary data store presents unique challenges.

Modern applications increasingly demand real-time capabilities—from live chat systems and collaborative editing to real-time dashboards and gaming. In this final post of our AWS and TypeScript series, we’ll explore how to build scalable real-time applications using AWS API Gateway WebSocket APIs, Lambda functions, and TypeScript to create robust, type-safe real-time communication systems.

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Understanding WebSocket APIs with AWS

AWS API Gateway WebSocket APIs provide a fully managed service for building real-time, bidirectional communication applications. Key advantages include:

Managing cloud infrastructure through code brings numerous advantages over manual configuration, including version control, reproducibility, and automated deployment pipelines. In this post, we’ll explore how to use AWS CDK (Cloud Development Kit) with TypeScript to create, manage, and deploy serverless applications with infrastructure that’s as maintainable and type-safe as your application code.

Why CDK with TypeScript?

AWS CDK offers a compelling alternative to traditional infrastructure tools by allowing you to define cloud resources using familiar programming languages. When combined with TypeScript, CDK provides compile-time type checking, intelligent code completion, and the ability to create reusable, composable infrastructure components.

Working with NoSQL databases like DynamoDB can be challenging when it comes to maintaining type safety and data consistency. In this post, we’ll explore how to build robust, type-safe DynamoDB operations using TypeScript, covering everything from basic CRUD operations to advanced patterns like single-table design and transaction handling.

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Why Type Safety Matters with DynamoDB

DynamoDB’s flexible schema brings both opportunities and challenges: