I know this question has been asked again, but I’m not sure what I’m doing wrong because no solution is working for me.
my code:
import React, { useEffect, useState } from "react";
import "./App.css";
function App() {
const [items, setItems] = useState([]);
const [loading, setLoading] = useState(false);
useEffect(() => {
setLoading(true);
fetch("https://jsonplaceholder.typicode.com/users")
.then((json) => {
setItems(json.items);
})
.catch((err) => {
console.log(err);
})
.finally(() => {
setLoading(false);
});
}, []);
if (loading) {
return <p>Data is loading...</p>;
}
return (
<div className="App">
<ul>
{items.map((item) => (
<li key={item.id}>
name: {item.name} | email: {item.email}
</li>
))}
</ul>
</div>
);
}
export default App;
I tried to write it liek this too, to check if the array exists and i dont get and error but I dont get anything as a result :
{items?.map((item) => (
<li key={item.id}>
name: {item.name} | email: {item.email}
</li>
))}
>Solution :
Hello looking at the jsonplaceholders documentation you need to first transform the response with json() when fetching like this
useEffect(() => {
setLoading(true);
fetch("https://jsonplaceholder.typicode.com/users")
.then((response) => {
return response.json() // return response.json() first
})
.then((json) => {
setItems(json) // then set the json into the items
})
.catch((err) => {
console.log(err);
})
.finally(() => {
setLoading(false);
});
}, []);
Without the converting it to json first the you set the response object instead of the json array