Coolkas WMS 2.0

Warehouse & Transportation Management System. Three services collaborate: a Go backend API, a Next.js operator dashboard, and a Python VRP routing solver.

coolkas-apiGo + Echo + PostgreSQL

coolkas-dashboardNext.js 15 + React 19

coolkas-routingPython + OR-Tools + gRPC

Outbound Order Lifecycle

Full process — from Sales Order to delivery confirmation

Step 1

Upload SO

Admin

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Step 2

Generate DN

Admin

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Step 3

Pick & Pack

Warehouse

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Step 4

Route & Dispatch

Logistics

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Step 5

Deliver

Driver (app)

Documentation sections

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Product & Business

For product owners & stakeholders

Outbound Flow

Full process: SO upload → DN → picking → routing → driver delivery

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Backend Engineering

For backend developers

Routing Integration

Architecture, DB schema, gRPC flow, API endpoints

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API Reference

All REST endpoints, request/response schemas

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Frontend Engineering

For frontend developers

Design System

Colors, typography, component library

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Frontend Guide

File structure, patterns, hooks, data fetching

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Testing Guide

UAT scenarios and acceptance test cases

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