Ktor Server Pro

Part 3 - Order Service

[00:22] Introduction to order-service part

Module 1- Getting Started with order-service

[01:17] Theory: Understanding MySQL

[04:26] Creating a New Ktor Project For order-service

[08:06] Configuring Project

[07:02] Running MySQL Instance with Docker

[05:38] Creating Database Schema For order-service

[04:53] Connecting to MySQL

Module 2- Introduction to Exposed

[02:26] Theory: What is Exposed?

[10:46] Defining Tables

[04:53] Implementing OrderRepository

[10:18] Persisting Orders

Module 3- Exposed DSL

[08:59] Persisting OrderItems

[03:42] Replace Multiple INSERTS with One

[06:16] SELECT with WHERE clause

[06:31] Joining Tables

[07:32] Limit & Offset

[07:20] Defining Entities

Module 4- Exposed DAO

[06:37] Saving Orders

[04:31] Finding with where Clause

[02:37] Limit & Offset

[07:42] Implementing OrderService

Module 5- Exposed Transactions

[02:48] Important Thing About Transactions

[02:11] Theory: What are Server-Sent Events (SSE)?

Module 6- Server-sent Events (SSE)

[07:54] Retrieving Order Status with SSE

[04:00] Testing SSE with Postman

[04:16] Better Error Handling with Event Types

[07:46] Authentication & JWT

[03:23] Challenge: Organizing Routes

Module 7- Exposing Order REST Endpoints

[14:21] Challenge: Implementing Endpoint For Getting Order by Id

[04:45] Challenge: Adding Endpoint To Retrieve All Orders

[10:18] Challenge: Introducing Endpoint To Add New Order

[05:30] Challenge: Securing Previously Added Endpoint

[00:18] Order-service part summary

Part 4 -Chat Service

[00:15] Introduction to chat-service part

Module 1- Getting Started with chat-service

[02:17] Theory: Understanding WebSockets

[04:33] New Ktor Project For chat-service

[04:11] Configuring WebSockets Plugin

[11:45] Implementing Echo Endpoint

[07:27] Parameters & Connection Closing

[02:53] Sending Serialized Messages

[07:38] Broadcasting Messages

Module 2- Working With Multiple Users in WebSockets

[09:26] Introducing Closed Chats (Rooms)

[02:57] Theory: Problems with WebSockets in Microservices

[01:17] Theory: What is Redis Pub/Sub?

Module 3- Implementing Chat With Redis Pub/Sub

[10:01] Running & Connecting to Redis Docker Instance

[04:06] Publishing Messages

[03:05] Observing Channels

[05:13] Implementing Chat WebSocket Endpoint

[06:49] Unsubscribing From Redis

[11:01] Authentication & JWT

[00:24] Chat-service part summary

Course Outro

[00:54] Ktor Server Pro summary

Bonus Content

26.02.2025: MongoDB with Kotlin coroutines tutorial

06.03.2025: Mocking with MockK – full guide

26.03.2025: Auto-reload in Ktor

31.03.2025: htmx with Kotlin & Ktor

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