Passing filter (wixDataObj) from backend to frontend

[steven-m-liriano]

Hi friends,

I am trying to return a filter from a backend function in the frontend and then pass the result to the dynamicDataset.setFilter() function. However, I am getting the error below. Any thoughts on how to resolve? Thanks

// backend
export async function getNewFilter() {
    let filter = await wixData.filter()
                                .eq("productAvailability", "Sold");
    return filter;

    // got the same error when I returned the line below
    // return JSON.stringify(filter);
}

// frontend

// returns the error below
async function filterDataset() {
    let filter = await Data.getNewFilter();

    // got the same error when I returned JSON.stringify(filter) in the getNewFilter() function
    // and then called JSON.parse on the result and tried to pass that to setFilter()
    // filter = JSON.parse(filter);
        
    $w("#dynamicDataset").setFilter(filter);
}

// this works fine but I want to create the filter in the backend
async function filterDataset() {
    let filter2 = wixData.filter()
                            .eq("productAvailability", "Sold");
        
    $w("#dynamicDataset").setFilter(filter2);
}