Simplify Real-Time Messaging with Next.js and Go

Prerequisite

1. NextJS 15 (Client)
2. Go (Server)

Server (Go lang)

Installation

init new project with name chat-server and get package gorilla/websocket

mkdir chat-server
cd chat-server
go mod init github.com/<USERNAME_GITHUB>/chat-server
go get -u github.com/gorilla/websocket

Server Code

Create new file main.go and follow this code

package main

import (
 "fmt"
 "net/http"
 "sync"
 "time"

 "github.com/gorilla/websocket"
)

var upgrader = websocket.Upgrader{
 CheckOrigin: func(r *http.Request) bool {
  return true // Allow all origins
 },
}

// Client represents a connected user
type Client struct {
 conn *websocket.Conn
 room string
 send chan Message
}

// Message represents a chat message
type Message struct {
 Sender    string    `json:"sender"`
 Text      string    `json:"text"`
 Timestamp time.Time `json:"timestamp"`
 Room      string    `json:"room"`
}

// Server manages connected clients and messages
type Server struct {
 rooms   map[string][]Message //…