Simple hook to deal with async function calls

react reacthooks javascript

For smaller react projects I wanted something simple to deal with asynchronous function calls like fetch API. Rather than littering the component with useState for dealing with loader, error and response I wrote a really simple hook

import { useState, useCallback } from 'react';

function useAsync(handleAsync, initialResponse = {}) {
const [isLoading, setLoading] = useState(false);
const [error, setError] = useState(false);
const [response, setResponse] = useState(initialResponse);

const fetchValue = useCallback(
async (options) => {
setLoading(true);
setError(false);

try {
const apiResponse = await handleAsync(options);
setResponse(apiResponse);
setLoading(false);
} catch (error) {
setError(true);
setLoading(false);
setResponse(error);
}
},
[setError, setLoading, setResponse, handleAsync]

);

return {
response,
isLoading,
error,
fetchValue,
};
}

export default useAsync;

So I can use this as follows

const { response, fetchValue, isLoading, error } = useAsync(signupUser);

const handleSubmit = useCallback(() => {
fetchValue({ email, password });
}, [email, password, fetchValue]);
export const signupUser = async ({ email, password }) => {
const response = await fetch(`dev.to/signup`, {
credentials: "include",
method: "POST",
headers: {
"Content-type": "application/json",
},
body: JSON.stringify({
email,
password,
}),
});

if (!response.ok) {
throw new Error(response);
}

return response.json();
};

react-async does provide something similar but it had lot of other functionality that I won't need. So going with a simple hook instead of a complete library just for this alone seemed like a better choice for me.

This post is also available on DEV.