How to print json api data in reactjs - json

Question

I'm fetching json api details through GET request and trying to print it. Getting an error:
Error in the console is Uncaught ReferenceError: allUsers is not defined
const Dashboard = ({status, juser}) => {
const [allUsers, setAllUsers] = React.useState([]);
const id = juser.actable_id;
console.log(id); //getting id here as 1
const getAllusers = () => {
axios
.get(`http://localhost:3001/user/${id}`, { withCredentials: true })
.then((response) => {
console.log(response.data);
setAllUsers(response.data);
})
.catch((error) => {
console.log(" error", error);
});
};
React.useEffect(() => {
getAllusers();
}, []);
{allUsers.map((job_seeker, index) => {
return (
<div>
<p>{job_seeker.name}</p>
</div>
);
})}
}
export default Dashboard;
I'm new to react. Any help is appreciatable.

Answer 1

const [state, setState] = React.useState([]);
the state is where your data is located and setState is function to reset the state from anywhere,
so on your code,
const [jobseekers, allUsers] = React.useState([]); // change string to array
jobseekers is the variable where your data is located and allUsers is the function to store data into state.
set data to state using allUsers function,
const getAllusers = () => {
axios
.get(`http://localhost:3001/user/${id}`, { withCredentials: true })
.then((response) => {
allUsers(response.data);
})
.catch((error) => {
console.log(" error", error);
});
};
and map from jobseekers
{jobseekers.map((job_seeker, index) => {
return (
<div>
<p>{job_seeker.name}</p>
</div>
);
})}
Also I would suggest to rename your state and setState as,
const [allUsers, setAllUsers] = React.useState([]);

Answer 2

You didn't pass the value of response to allUsers, instead, you just created a new variable. So change
const allUsers = response.data;
to:
allUsers(response.data)
Besides, you can also improve the way that you have used useState. You have initialized it as an empty string while you'll probably store an array from response in jobseekers. So, initialize it as an empty array.
const [jobseekers, allUsers] = React.useState([]);