@tutanck/react-async v0.0.6

Dead simple react async hook

@tutanck/react-async offers only 2 hooks :

• useAsync: run an async function and allows you to follow its execution status.

• useOnDone: execute a callback whenever at least one of its dependencies is 'done'.

Example

import { fetch, add, update, remove } from 'src/api/products';
import { useAsync, useOnDone } from '@tutanck/react-async';

export default function App({ onError }) {
 const [products, setProducts] = useState([]);

 const [fetchProducts, fetchStatus] = useAsync(fetch);
 const [addProduct, addStatus] = useAsync(add);
 const [updateProduct, updateStatus] = useAsync(update);
 const [removeProduct, removeStatus] = useAsync(remove);

 const fetchAndSet = () => fetchProducts().then(setProducts).catch(onError);

 useEffect(fetchAndSet, []); // first fetch

 // Will run 'fetchProducts' whenever 
 // addStatus, updateStatus or removeStatus 
 // is equal to 'done'.
 useOnDone(fetchAndSet, [addStatus, updateStatus, removeStatus]);

 return fetchStatus === 'loading' ? (
   <LinearProgress />
 ) : (
   <div>
       <Button 
         disabled={addStatus === 'loading'} 
         onClick={() => addProduct()}
       >
           Create
       </Button>

       <Button 
         disabled={removeStatus === 'loading'} 
         onClick={(id) => removeProduct(id)}
       >
           Delete
       </Button>
   </div>  
 );
}

You will find the full working example here.

API

useAsync

Syntax

 useAsync(asynFn);

Parameters

1. asynFn: Whatever async function you want.

Return value

An array of 2 elements in this order: 1. The async function (asyncFn) you passed in parameter. 2. An execution status between: - undefined - 'loading' - 'error' - 'done'

useOnDone

Syntax

 useOnDone(fn, statusDeps);

Parameters

1. fn: Whatever callback function you want (async or not).
2. statusDeps: An array of status dependencies.

Return value

No return value.