Hello Guys,
In this article, we will learn about how to create a loading notification.
The Library
I was able to locate some react component libraries for making toasts, but react-hot-toast was the easiest to use and cleanest. Warning: It’s very hot!
Creating the toast
The library is simple to use, and there are a variety of toasts available, which you can learn more about on their docs page, but for the sake of this blog, we’ll use the promise toast to produce a loading message while fetching data from an API.
Let’s begin by putting together a react project.
Let’s get to the section where we rapidly collect data from an API. I have an API that I’ll use to retrieve my Spotify data, which I’ll use here.
app.js:
import { useState } from 'react'
import toast, { Toaster } from 'react-hot-toast';
function App() {
const [data, setData] = useState(null)
function fetchData() {
return fetch('https://spotify-np-api.vercel.app/api').then(
(response) => {
return response.json();
}
).then(
(data) => {
return data;
}
).catch(
(error) => {
console.error(error);
}
)
}
const getToast = () => {
toast.promise(fetchData(), {
loading: 'getting song data...',
success: (data) => {
setData(data)
return 'fetched top song data'
},
error: "couldn't fetch data!",
})
}
return (
<div className="relative App flex justify-center items-center bg-red-200 w-screen h-screen flex-col gap-3 p-3">
<button onClick={getToast} className='hover:rotate-3 duration-300 bg-red-400 -rotate-3 shadow-xl rounded-md px-6 py-2 text-rose-100 font-bolder' >🎵ㅤGet Song Data</button>
{data &&
<div className='hover:-rotate-1 duration-300 cursor-pointer bg-red-400 flex flex-col rotate-1 justify-center items-center h-1/4 w-full lg:w-1/3 md:w-1/2 shadow-2xl rounded-md p-4'>
<h1 className='text-center text-2xl mb-3 text-red-100 font-bold'>ashish's top song for this week 🎵</h1>
<h1 className='text-center text-xl font-bolder text-rose-100'>{data.top.song.toLowerCase()}</h1>
<h1 className='text-center text-md font-bolder text-rose-200'>~ {data.top.artist}</h1>
</div>
}
<h2 className='text-red-600 text-sm absolute bottom-0 text-center p-4'>made by ashish using react-hot-toast</h2>
<Toaster
toastOptions={{
className: '',
style: {
background: '#f87171',
color: '#ffe4e6',
}
}}
/>
</div>
)
}
export default App
Let’s have a look at it now.
It returns the promise to be used by our toast method: It returns the promise to be used by our toast method:
...
function fetchData() {
return fetch('https://spotify-np-api.vercel.app/api').then(
(response) => {
return response.json();
}
).then(
(data) => {
return data;
}
).catch(
(error) => {
console.error(error);
}
)
}
...
import toast, { Toaster } from 'react-hot-toast';
We need to supply our promise in the toast.promise()method and the second argument is an object msgswhere we define the messages that the toast needs to show based on promise status in the OnClickfunction using toast.promise(). You can use a function to set states and alter data in this area as well. If the promise is successfully fetched, I’ve used setData()to change the data that will be displayed on the app.
...
const getToast = () => {
toast.promise(fetchData(), {
loading: 'getting song data...',
success: (data) => {
setData(data)
return 'fetched top song data'
},
error: "couldn't fetch data!",
})
}
...
To render the toast, we need to add the <Toaster /> component at the end of our app. You may style the toast using the ToastOptions object supplied to it.
...
<Toaster
toastOptions={{
className: '',
style: {
background: '#f87171',
color: '#ffe4e6',
}
}}
/>
...
Now we’ll make a div component to display the data that was fetched.
...
{data &&
<div className='hover:-rotate-1 duration-300 cursor-pointer bg-red-400 flex flex-col rotate-1 justify-center items-center h-1/4 w-full lg:w-1/3 md:w-1/2 shadow-2xl rounded-md p-4'>
<h1 className='text-center text-2xl mb-3 text-red-100 font-bold'>ashish's top song for this week 🎵</h1>
<h1 className='text-center text-xl font-bolder text-rose-100'>{data.top.song.toLowerCase()}</h1>
<h1 className='text-center text-md font-bolder text-rose-200'>~ {data.top.artist}</h1>
</div>
}
...
