Part 7: Build a Mini Core Banking System in Golang Engine Guide

Prerequisite: Advanced Go programming proficiency, mastery of SQL transactions, database connection pool optimization, and distributed systems profiling. Part 7: Build a Mini Core Banking System in Golang Engine Guide Answer-first: Building a production-grade mini core banking engine in Go 1.25 demonstrates high-throughput concurrent transaction processing, PostgreSQL table partitioning, atomic double-entry balance updates, and robust idempotency key deduplication, achieving over fifteen thousand sustained transactions per second under sub-ten-millisecond latency SLAs with mathematical balance consistency and absolute zero financial data loss. ...