Next.js से नेक्सी तक

from nexy.core.models import NexyConfigModelfrom nexy.frontend import react  class NexyConfig(NexyConfigModel):    useFF = react()    useCSR = True

export default function About() {  return <h1>About</h1>;}

export default function About() {  return <h1>About</h1>;}

export default async function Post({ params }: { params: Promise<{ slug: string }> }) {  const { slug } = await params;  return <h1>{slug}</h1>;}

import { useParams } from "@nexy/client"; export default function Post() {  const { slug } = useParams<{ slug: string }>();  return <h1>{slug}</h1>;}

export async function generateStaticParams() {  return [{ slug: "hello" }, { slug: "world" }];}

import { useParams } from "@nexy/client"; export function getStaticParams() {  return [{ slug: "hello" }, { slug: "world" }];} export default function Post() {  const { slug } = useParams<{ slug: string }>();  return <h1>{slug}</h1>;}

export default function RootLayout({ children }: { children: React.ReactNode }) {  return (    <html lang="en">      <body>{children}</body>    </html>  );}

import type { ReactNode } from "react"; export default function RootLayout({ children }: { children: ReactNode }) {  return (    <html lang="en">      <head>        <title>My app</title>      </head>      <body>{children}</body>    </html>  );}

export const metadata = { title: "Blog", description: "Posts about Nexy" };

---metadata = {"title": "Blog", "description": "Posts about Nexy"}---<h1>Blog</h1>

---from nexy import useMetadata children: prop[NexyElement]---<!DOCTYPE html><html>  <head>{{ useMetadata().html() }}</head>  <body>{{ children | safe }}</body></html>

"use client";import Link from "next/link";import { usePathname, useRouter } from "next/navigation";

import { Link, usePathname, useRouter } from "@nexy/client"; export function Nav() {  const pathname = usePathname();  const router = useRouter();  return (    <nav>      <Link href="/">Home</Link>      <Link href="/about" activeClassName="active">About</Link>      <span>{pathname}</span>      <button onClick={() => router.push("/dashboard")}>Dashboard</button>    </nav>  );}

export async function GET(request: Request, { params }: { params: Promise<{ id: string }> }) {  const { id } = await params;  return Response.json({ id: Number(id) });}

async def GET(id: int):    return {"id": id}

from pydantic import BaseModel from nexy.http import JSONResponse  class NewItem(BaseModel):    name: str  async def POST(item: NewItem):    return JSONResponse({"created": item.name}, status_code=201)

"use server";import { revalidatePath } from "next/cache"; export async function addTodo(title: string) {  await db.todo.create({ data: { title } });  revalidatePath("/todos");}

from pydantic import BaseModel from nexy.decorators import Action, revalidate  class Todo(BaseModel):    title: str    done: bool = False  @Actionasync def add_todo(title: str) -> Todo:    revalidate("/todos")    return Todo(title=title)

import { useAction } from "@nexy/client";import { add_todo } from "@nexy/actions"; export default function Todos() {  const { run, pending, error, data } = useAction(add_todo);  return (    <button disabled={pending} onClick={() => run({ title: "Write the docs" })}>      {error ? error.message : data ? `Added ${data.title}` : "Add"}    </button>  );}

export default async function Users() {  const users = await db.user.findMany();  return <ul>{users.map((user) => <li key={user.id}>{user.name}</li>)}</ul>;}

---users = [{"id": 1, "name": "Ada"}, {"id": 2, "name": "Alan"}]---<ul>  {% for user in users %}  <li>{{ user.name }}</li>  {% endfor %}</ul>

async def GET():    return [{"id": 1, "name": "Ada"}, {"id": 2, "name": "Alan"}]

import { useEffect, useState } from "react"; type User = { id: number; name: string }; export default function Users() {  const [users, setUsers] = useState<User[]>([]);  useEffect(() => {    fetch("/api/users").then((response) => response.json()).then(setUsers);  }, []);  return <ul>{users.map((user) => <li key={user.id}>{user.name}</li>)}</ul>;}

import Counter from "./counter"; // "use client" export default function Home() {  return (    <>      <h1>Static heading</h1>      <Counter />    </>  );}

---from "@/components/Counter.tsx" import Counter---<h1>Static heading</h1><Counter start=3 directive="client:visible" />

import { useState } from "react"; export default function Counter({ start = 0 }: { start?: number }) {  const [count, setCount] = useState(start);  return <button onClick={() => setCount(count + 1)}>{count}</button>;}

export const revalidate = 60;

---revalidate = 60---<h1>News</h1>

import { NextResponse, type NextRequest } from "next/server"; export function middleware(request: NextRequest) {  if (!request.cookies.get("session")) return NextResponse.redirect(new URL("/login", request.url));} export const config = { matcher: "/dashboard/:path*" };

from nexy.http import RedirectResponse, Request  async def middleware(request: Request, call_next):    if "session" not in request.cookies:        return RedirectResponse("/login", status_code=307)    return await call_next(request)

async def GET():    return {"visits": 12}

import { notFound } from "next/navigation"; if (!post) notFound();

from nexy.http import HTTPException POSTS = {"hello": "Hello, world"}  async def GET(slug: str):    if slug not in POSTS:        raise HTTPException(status_code=404, detail="No such post")    return {"title": POSTS[slug]}

---from nexy import Image---<Image src="/logo.png" alt="Logo" width=128 height=32 />