16x Prompt for Next.js

You can use 16x Prompt to help you with feature development and refactoring when working with Next.js.

We will use emoji-todo as the sample project to demonstrate the use cases.

Emoji TODO app before adding created_at field

Feature Development

Make Changes Across Backend and Frontend

Step 1: Enter Task Instruction in the 16x Prompt app.

add created_at column to the table, type timestamp and default NOW().
 
display it on frontend as well.

Step 2: Drag and drop source code files into the 16x Prompt app.

You should see the Final Prompt in 16x Prompt:

Add created_at field to todos and display it in Next.js app using 16x Prompt

Step 3: Generate Next.js code using ChatGPT.

You can either copy paste the final prompt into the ChatGPT, or send it via API to get the Next.js code.

Here is the ChatGPT (ChatGPT Classic) Output:

ALTER TABLE todos ADD COLUMN created_at TIMESTAMP DEFAULT NOW();

// ...import statements and neonConfig setup
 
export const todosTable = pgTable('todos', {
  id: serial('id').primaryKey(),
  text: varchar('text', { length: 10 }).default(''),
  // Add created_at column representation
  created_at: timestamp('created_at').default(sql`NOW()`),
});
 
// ...rest of the db.ts file

import { db, todosTable } from './db';
import { submit } from './actions';
import { sql } from 'drizzle-orm';
 
export default async function Home({ searchParams }) {
  const todos = await db
    .select({
      id: todosTable.id,
      text: todosTable.text,
      // Include created_at in the selection
      created_at: todosTable.created_at,
    })
    .from(todosTable)
    .limit(20)
    .orderBy(searchParams.asc ? sql`${todosTable.id} ASC` : sql`${todosTable.id} DESC`);
 
  return (
    <main key={todos[0]?.id}>
      <h1>
        Emoji TODO{' '}
        <a href="https://github.com/rauchg/emoji-todo" target="_blank">
          source
        </a>
      </h1>
      <ul>
        {todos.map((todo) => (
          // Display created_at with the text
          <li key={todo.id}>
            {todo.text} - {new Date(todo.created_at).toLocaleString()}
          </li>
        ))}
      </ul>
      // ...form element
    </main>
  );
}

After making these changes, you will have the created_at field added to the todos table and displayed in the frontend:

Emoji TODO app after adding created_at field

Reference Links:

ChatGPT Share Link: Adding created_at to Todos
Source Code: emoji-todo

Refactoring

Refactor regex usage

In this example, we refactor the regex usage in a Next.js app by consolidating all instances of regex into a single file for better organization and maintainability.