I want to Serve React App with react router dom with echo

I want to Serve React App with react router dom with echo in Go. But I'm facing a problem in routing because if I directly go to that route I get not found error

package main

import (
    "fmt"
    checkerror "server/checkError"
    connectdb "server/connectDB"
    "server/handler"

    "github.com/gofor-little/env"
    echo "github.com/labstack/echo/v4"
    "github.com/labstack/echo/v4/middleware"
    _ "github.com/lib/pq"
)

func main() {
    err := env.Load(".env")
    if err != nil {
        fmt.Println(err.Error())
        return
    }
    userDB := connectdb.UserDB{Name: "Hi", DBP: nil}
    err = userDB.ConnectDB()
    fmt.Println(userDB.DBP)
    checkerror.Checkerror(err)
    e := echo.New()
    e.Static("/","build")
    e.Use(middleware.Logger())
    handler.Apihandler(e, userDB.DBP)
    e.File("/","index.html")
    
    e.Logger.Fatal(e.Start(":1323"))
    
    defer func() {
        fmt.Println("DB disconnected")
        userDB.CloseDB()
    }()
}

This is code to serve the app Please help

I want to get access of routes from react

Instead of serving static files using static use the middleware of StaticWith config so it can redirect to index.HTML if route is not found

e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
    Skipper: nil,
    // Root directory from where the static content is served.
    Root: "build",
    // Index file for serving a directory.
    // Optional. Default value "index.html".
    Index: "index.html",
    // Enable HTML5 mode by forwarding all not-found requests to root so that
    // SPA (single-page application) can handle the routing.
    HTML5:      true,
    Browse:     false,
    IgnoreBase: false,
    Filesystem: nil,
}))