Thêm tệp đính kèm vào PDF trong Node.js SDK

    import credentials from "./credentials.json" with { type: "json" };
    import fs from 'node:fs/promises';
    import path from 'node:path';
    import { PdfApi } from "asposepdfcloud";
    import { AttachmentInfo } from "asposepdfcloud/src/models/attachmentInfo.js";

    async function addAttachment() {
        const LOCAL_FILE_NAME = "C:\\Samples\\Attachments\\sample_attachment.pdf";
        const STORAGE_FILE_NAME = "sample_attachment.pdf";
        const LOCAL_ATTACHMENT_FILE_NAME = "C:\\Samples\\Attachments\\file_example_MP3_700KB.mp3";
        const STORAGE_ATTACHMENT_FILE_NAME = "file_example_MP3_700KB.mp3";
        const RESULT_FILE_NAME = "C:\\Samples\\Attachments\\sample_attachment.pdf";
        try {
            const pdfApi = new PdfApi(credentials.id, credentials.key);
            let buffer = await fs.readFile(LOCAL_FILE_NAME);
            let uploadResult = await pdfApi.uploadFile(STORAGE_FILE_NAME, buffer);
            console.log(`Uploaded: ${uploadResult.body.errors.length === 0}`);
            buffer = await fs.readFile(LOCAL_ATTACHMENT_FILE_NAME);
            uploadResult = await pdfApi.uploadFile(STORAGE_ATTACHMENT_FILE_NAME, buffer);
            console.log(`Uploaded: ${uploadResult.body.errors.length === 0}`);

            const attachment = new AttachmentInfo();
            attachment.name = STORAGE_ATTACHMENT_FILE_NAME;
            attachment.path = STORAGE_ATTACHMENT_FILE_NAME;
            attachment.description = "An example of MP3 file";
            attachment.mimeType = "audio/mpeg";

            const appendResult = await pdfApi.postAddDocumentAttachment(STORAGE_FILE_NAME, attachment, null, null);

            if (appendResult.body.code == 200) {
                const downloadResult = await pdfApi.downloadFile(STORAGE_FILE_NAME);
                await fs.writeFile(RESULT_FILE_NAME, downloadResult.body);
            }
            else
                console.log("Unexpected error : can't download attachments");

        } catch (error) {
            console.error(error.message);
        }
    }