在 Node.js SDK 中从 PDF 提取链接

 
    import credentials from "./credentials.json"  with { type: "json" };    // json-file in this format: { "id": "*****", "key": "*******" }
    import fs from 'node:fs/promises';
    import path from "node:path";
    import { PdfApi } from "asposepdfcloud";

    const configParams = {
        LOCAL_FOLDER: "C:\\Samples\\",
        PDF_DOCUMENT_NAME: "sample.pdf",
        LOCAL_RESULT_DOCUMENT_NAME: "output_sample.pdf",
        PAGE_NUMBER: 2,         // Your document page number...
        LINK_FIND_ID: "GI5UO32UN5KVESKBMN2GS33OHMZTEMJMGUYDQLBTGYYCYNJSGE",
    };

    const pdfApi = new PdfApi(credentials.id, credentials.key);

    const pdfLinks = {
        async uploadDocument() {
            const pdfFilePath = path.join(configParams.LOCAL_FOLDER, configParams.PDF_DOCUMENT_NAME);
            const pdfFileData = await fs.readFile(pdfFilePath);
            await pdfApi.uploadFile(configParams.PDF_DOCUMENT_NAME, pdfFileData);
        },
            
        async getAllLinks () {
            const resultLinks = await pdfApi.getPageLinkAnnotations(configParams.PDF_DOCUMENT_NAME, configParams.PAGE_NUMBER);

            if (resultLinks.body.code == 200 && resultLinks.body.links.list) {
                this.showLinks(resultLinks.body.links.list, "all");
                return resultLinks.body.links.list;
            }
            else
                console.Error("Unexpected error : can't get links!!!");
        },
        
        showLinks (links, prefix) {
            if (Array.isArray(links) && links.length > 0)
            {
                links.forEach(function(link) {
                    console.log(prefix +" => '" + link.id + "', '" + link.action);
                });
            }
        },
    }

    async function main() {
        try {
            await pdfLinks.uploadDocument();
            await pdfLinks.getAllLinks();
        } catch (error) {
            console.error("Error:", error.message);
        }
    };