`useDelete`

This hook allows calling dataProvider.delete() when the callback is executed and deleting a single record based on its id.

// syntax
const [deleteOne, { data, isLoading, error }] = useDelete(
    resource,
    { id, previousData, meta },
    options
);

The deleteOne() method can be called with the same parameters as the hook:

deleteOne(
    resource,
    { id, previousData },
    options
);

So, should you pass the parameters when calling the hook, or when executing the callback? It’s up to you; but if you have the choice, we recommend passing the parameters when calling the deleteOne callback (second example below).

// set params when calling the hook
import { useDelete, useRecordContext } from 'react-admin';

const DeleteButton = () => {
    const record = useRecordContext();
    const [deleteOne, { isLoading, error }] = useDelete(
        'likes',
        { id: record.id, previousData: record }
    );
    const handleClick = () => {
        deleteOne();
    }
    if (error) { return <p>ERROR</p>; }
    return <button disabled={isLoading} onClick={handleClick}>Delete</button>;
};

// set params when calling the deleteOne callback
import { useDelete, useRecordContext } from 'react-admin';

const DeleteButton = () => {
    const record = useRecordContext();
    const [deleteOne, { isLoading, error }] = useDelete();
    const handleClick = () => {
        deleteOne(
            'likes',
            { id: record.id , previousData: record }
        );
    }
    if (error) { return <p>ERROR</p>; }
    return <button disabled={isLoading} onClick={handleClick}>Delete</button>;
};

TypeScript

The useDelete hook accepts a generic parameter for the record type and another for the error type:

useDelete<Product, Error>(undefined, undefined, {
    onError: (error) => {
        // TypeScript knows that error is of type Error
    },
    onSettled: (data, error) => {
        // TypeScript knows that data is of type Product
        // TypeScript knows that error is of type Error
    },
})