JackSparrow414

Recent Posts

• Kafka (Part 7): Integrating Apache Avro and Apicurio Schema Registry to Ensure Message Compatibility Between Producers and Consumers

  26 Aug, 2026

  To address deserialization failures caused by Kafka message format changes, this article walks through migrating from JSON to Avro and integrating Apicurio Schema Registry. It covers schema definition, Java class generation, producer and consumer configuration, and version compatibility checks, reducing the risk of poison-pill messages.

• Frontend Security: JavaScript Obfuscation, Request Encryption, and Signing to Make Scraping Harder

  31 Jul, 2026

  Introduces JavaScript obfuscation, request-body encryption, and request signing through examples, including RSA key exchange, AES-GCM encryption and decryption, and backend timestamp and nonce validation. It discusses increasing the cost of API analysis and reverse engineering, and balancing security with performance.

• Understanding Java NIO (Part 3): I/O Multiplexing and the Reactor Pattern in Java, with Open-Source Framework Code Analysis

  11 Jun, 2026

  This post implements a Multi-Reactor server with Java NIO and explains how Channel, Buffer, Selector, and wakeup work together. It also covers cross-thread channel registration and dynamically adjusting read/write events, and analyzes how NIO is applied in the source code of Apache HttpClient and the Kafka client.

• Managing and Updating Production Server Configuration in Batches with Ansible

  30 May, 2026

  Uses production server configuration updates to introduce an Ansible development environment, inventory, and playbook organization. Examples cover selecting host batches, copying and editing files, restarting services, and upgrading the kernel, with explanations of variables, conditions, and concurrent execution.