shadcn-ui/ui codebase analysis: Tasks example explained.

#javascript #opensource #react #nextjs

In this article, we will learn about Tasks example in shadcn-ui/ui. This article consists of the following sections:

Where is tasks folder located?
What is in tasks folder?
Components used in tasks example.

Where is tasks folder located?

Shadcn-ui/ui uses app router and tasks folder is located in examples folder, which is located in (app), a route group in Next.js.

What is in tasks folder?

As you can see from the above image, we have components folder, data, page.tsx.

page.tsx is loaded in place of {children} in examples/layout.tsx.

Below is the code picked from tasks/page.tsx

import { promises as fs } from "fs"
import path from "path"
import { Metadata } from "next"
import Image from "next/image"
import { z } from "zod"

import { columns } from "./components/columns"
import { DataTable } from "./components/data-table"
import { UserNav } from "./components/user-nav"
import { taskSchema } from "./data/schema"

export const metadata: Metadata = {
  title: "Tasks",
  description: "A task and issue tracker build using Tanstack Table.",
}

// Simulate a database read for tasks.
async function getTasks() {
  const data = await fs.readFile(
    path.join(process.cwd(), "app/(app)/examples/tasks/data/tasks.json")
  )

  const tasks = JSON.parse(data.toString())

  return z.array(taskSchema).parse(tasks)
}

export default async function TaskPage() {
  const tasks = await getTasks()

  return (
    <>
      <div className="md:hidden">
        <Image
          src="/examples/tasks-light.png"
          width={1280}
          height={998}
          alt="Playground"
          className="block dark:hidden"
        />
        <Image
          src="/examples/tasks-dark.png"
          width={1280}
          height={998}
          alt="Playground"
          className="hidden dark:block"
        />
      </div>
      <div className="hidden h-full flex-1 flex-col space-y-8 p-8 md:flex">
        <div className="flex items-center justify-between space-y-2">
          <div>
            <h2 className="text-2xl font-bold tracking-tight">Welcome back!</h2>
            <p className="text-muted-foreground">
              Here&apos;s a list of your tasks for this month!
            </p>
          </div>
          <div className="flex items-center space-x-2">
            <UserNav />
          </div>
        </div>
        <DataTable data={tasks} columns={columns} />
      </div>
    </>
  )
}

Components used in tasks example.

To find out the components used in this cards example, we can simply look at the imports used at the top of page.

import { columns } from "./components/columns"
import { DataTable } from "./components/data-table"
import { UserNav } from "./components/user-nav"
import { taskSchema } from "./data/schema"

Do not forget the modular components inside cards folder.

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