basic-crud-application

Basic CRUD Application

A real-time CRUD (Create, Read, Update, Delete) application using Socket.IO in Go.

Features

• Create, read, update, and delete TODO items
• All changes are broadcast to all connected clients in real-time
• Acknowledgement (ack) support for confirmation of operations
• Thread-safe in-memory storage

How to run

go run main.go

The server starts on http://localhost:3000 by default. Set the PORT environment variable to use a different port.

Events

Client → Server

Event	Payload	Ack	Description
todo:create	{ title }	TodoItem	Create a new item
todo:read	—	[]TodoItem	List all items
todo:update	{ id, title, completed }	TodoItem	Update an existing item
todo:delete	{ id }	{ id }	Delete an item

Server → Client

Event	Payload	Description
todo:list	[]TodoItem	Full item list sent on connection
todo:created	TodoItem	A new item was created
todo:updated	TodoItem	An item was updated
todo:deleted	{ id }	An item was deleted

TodoItem

{
  "id": 1,
  "title": "Buy groceries",
  "completed": false
}

Running tests

go test -v -race ./...