onListDrawings

Last updated 8/03/2026

Drawing listing handler

This example demonstrates how the

onListDrawings

callback sends a request using the Fetch API to retrieve drawings for a revision. Once the request completes, the result and returned drawings are provided to the widget through the

onResponse

callback.

Drawing listing handler

onListDrawings = async function(revision: DIQ_Revision, onResponse: (result: DIQ_Result, drawings: Array<DIQ_DrawingRevision> | null) => void) {
    try {
        const res = await fetch(`/api/revisions/${revision.key}/drawings`);

        if (!res.ok) {
            throw new Error(`HTTP ${res.status}`);
        }

        const drawings = await res.json();

        onResponse(
            { ok: true },
            drawings
        );

    } catch (err) {
        onResponse(
            {
                ok: false,
                message: err.message || "Failed to fetch drawings"
            },
            null
        );
    }
};