I am using the load() function to fetch data:
async function load() {
let url = `www.com/file.json`
let data = await (await fetch(url)).json()
return data
}
Once I have my JSON file loaded from the server, I want to render my page:
export const Page = async () => {
const data_ = await load()
return (
<div className="page">
content
</div>
)
}
Any suggestions on how I can achieve this?
To fetch the necessary data when the component mounts, you can utilize the useEffect hook. This hook will execute once to retrieve the required information and store it in the data state for later use within the div elements.
Without knowing the structure of the response, it is difficult to provide a detailed explanation on rendering the data. Additionally, the id_ parameter seems unnecessary in your example but has been retained to mirror your provided code snippet.
import React, {useState, useEffect} from "react";
export const Page = () => {
const [data, setData] = useState(null)
useEffect(() => {
const fetchData = async (id_) => {
let url = `www.com/file.json`
let data = await (await fetch(url)).json()
const manipulatedData = ...
// perform manipulation
setData(manipulatedData)
}
fetchData()
}, [])
return (
<div className="page">
{data ? data : null}
</div>
);
}
export default Page;
To solve this problem, you should utilize the useEffect and useState hooks.
Let me show you a simple example:
import { useState, useEffect } from 'react';
export const Page = () => {
const [data, setData] = useState();
useEffect(() => {
async function loadData() {
let url = `www.com/file.json`;
let fetchedData = await (await fetch(url)).json();
setData(fetchedData);
}
loadData();
}, []);
return <div className="page">{JSON.stringify(data)}</div>;
}
Try replacing JSON.stringify with data.something to display a specific field in the data object.
Here are some helpful tips:
useState is used to store variables needed for rendering the pageuseEffect hook enables your component to manage asynchronous tasks or any other side effectsIf you want to effortlessly load your data, consider utilizing the useEffect() and useState() hooks:
function fetchData() {
let url = `www.example.com/data.json`
let data = await (await fetch(url)).json()
return data
}
export const Page = async () => {
const [data, setData] = useState(null)
useEffect(() => {
fetchData().then((_data) => {
setData(_data)
})
}, [])
if (!data) {
return <div>loading data...</div>
}
return (
<div className="page">
Data is now available for use!
</div>
)
}
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