useSWR loads previous data immediately after mutation

[bn-piar]

upd: nevermind. It seems I had bad implementation of some of my components. Refactored the code and the problem is gone.

Hi guys.

I'm implementing a search functionality for products page.

Initially I load all products from database with useSWR.
When user enters a searchTerm and submits it, I call mutate function passing function that returns new data as an argument.

In networks I see that the mutate creates a new request to get new data that satisfies searchTerm but then it immediately sends another requests to load all data

Consider the following code:

const Component = () => {
  const { data, mutate } = useSWR(MY_ENDPOINTS.GET);
  const handleFormSubmit = (searchTerm) => {
    mutate(async () => {
      const { data } = await axios.post(MY_ENDPOINTS.POST, { searchTerm });
      return data 
    });
  }
  return ( ... )
}

backend

    if (req.method === 'GET') {
        try {
            const items = await ProductModel.find<HydratedDocument<TProductSchema>>();

            res.json(
                items.map((product) => {
                    const { _id, ...rest } = product.toObject();

                    return { id: _id, ...rest };
                })
            );
        } catch (error) {
            res.status(STATUS_CODES.INTERNAL_SERVER_ERROR).json({ error });
        }
    } else {
        try {
            const items = await ProductModel.find({
                $or: [
                    { productName: { $regex: search } },
                    { barcode: { $regex: search } },
                    { sku: { $regex: search } },
                ],
            });

            res.json(
                items.map((product) => {
                    const { _id, ...rest } = product.toObject();

                    return { id: _id, ...rest };
                })
            );
        } catch (error) {
            res.status(STATUS_CODES.INTERNAL_SERVER_ERROR).json({ error });
        }
    }

Does anyone have a clue what's going on? How can I fix it?

https://vimeo.com/722481138/441633c4c3