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Backend

How to Choose an ERP for SMEs: A Practical Thai Guide

How to choose an ERP for a Thai SME: which modules come first, cloud vs on-premise, VAT, withholding tax and e-Tax Invoice needs, total cost, and a checklist.

Sep 25, 20267 min read

Backend

Payment Gateway Integration Guide for Thai Businesses

A practical guide to payment gateway integration in Thailand: Omise, 2C2P, Stripe and PromptPay, webhooks, idempotency, refunds, and PCI DSS scope.

Sep 25, 20267 min read

Backend

Go Modules and Packages: A Practical Guide

Learn how Go modules and packages work: package main and func main, go mod init, exported vs unexported names, importing third-party packages, go mod tidy, go.sum and basic project layout.

Sep 24, 20269 min read

Backend

Gin Validation, File Uploads and Pagination in Go

Gin validation and pagination done right: bind JSON, query and path params, return clear per-field errors, accept image uploads safely with FormFile, and paginate with a concurrent total count.

Sep 24, 202610 min read

Backend

Gin JWT Authentication and Casbin RBAC in Go

Secure a Gin API with JWT and Casbin: how Gin middleware works, bcrypt password hashing, the gin-jwt login flow, reading the token payload, Casbin RBAC policies and protecting route groups.

Sep 24, 202610 min read

Backend

Build a Go REST API with Gin, GORM and PostgreSQL

Build a Go REST API with Gin and GORM on PostgreSQL: project layout, env config with godotenv, models, versioned migrations, idempotent seeds, CRUD handlers, route groups and CORS.

Sep 24, 202610 min read

Backend

Apache Kafka Partitions and Consumer Groups Explained

Learn how Apache Kafka partitions drive scaling and ordering: log vs queue, topics, offsets, message keys, the two consumer group rules, retention and compaction, and when Kafka is the right tool.

Sep 24, 202610 min read

Backend

Scaling WebSockets Across Pods with Redis Pub/Sub

Scaling WebSockets breaks once you run a second server. Learn how to fan out messages across pods with Redis Pub/Sub, RabbitMQ or Kafka, when sticky sessions matter, and how to track presence.

Sep 24, 202610 min read

Backend

Java Threads and Multithreading: Runnable to ExecutorService

Learn how a Java thread works: Thread vs Runnable, lambdas, thread states, race conditions, stopping threads safely with interrupt or a volatile flag, Timer vs scheduled executors, and ExecutorService.

Sep 24, 202610 min read

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