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The standard library is not a validator: 72 hours of zero-dependency JSON in Rust

I spent last weekend building a JSON toolkit in Rust under one rule: no third-party dependencies . Not "few". None. The [dependencies] table in Cargo.toml is present and empty, and Cargo.lock holds…

  • Rust's standard library lacks guaranteed JSON validation
  • 10% of JSON documents rejected by RFC 8259 accepted by default number parsing
  • jaq-lite JSON parser complies with RFC 8259 and handles invalid numbers

Scaling Kafka Consumers in Spring Boot: How We Cut Lag and Saved Latency

Scaling Kafka Consumers in Spring Boot: How We Cut Lag and Saved Latency When scaling high-throughput event-driven microservices in fintech, default Spring Kafka consumer configurations often run into…

  • Increase concurrency beyond default single-threaded listeners
  • Implement explicit batch processing and idempotency
  • Match topic partition count with container concurrency

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