test.js

async function saveDocument() {
    try {
        const saveSettings = { mergeFormFields: true, embedAnnotations: false };
        const result = await TXDocumentViewer.saveDocument(
            TXDocumentViewer.StreamType.InternalUnicodeFormat,
            saveSettings);

        const base64 = await result.base64();

        const data = { document: base64 };
        const { success, error } = await saveDocumentAjax(data);

        if (success) {
            alert("Document saved.");
        } else {
            alert("Error saving document.");
        }
    } catch (error) {
        console.error("An error occurred:", error);
    }
}

async function saveDocumentAjax(data) {
    return new Promise((resolve) => {
        $.ajax({
            type: "POST",
            url: "/Home/receiveDocument",
            data: data,
            success: (data) => resolve({ success: true, data }),
            error: (xhr, ajaxOptions, thrownError) => resolve({ success: false, error: thrownError }),
        });
    });
}