Integrate the Adobe Document Generation API API with the Node API

import fs from "fs";
import axios from "axios";
import {
	ServicePrincipalCredentials,
	PDFServices,
	MimeType,
	DocumentMergeParams,
	OutputFormat,
	DocumentMergeJob,
	DocumentMergeResult
} from "@adobe/pdfservices-node-sdk";

export default defineComponent({
  props: {
    adobe_document_generation_api: {
      type: "app",
      app: "adobe_document_generation_api",
    }
  },
  async run({steps, $}) {
		// Configuration constants
		const PDF_SERVICES_CLIENT_ID = this.adobe_document_generation_api.$auth.client_id;
		const PDF_SERVICES_CLIENT_SECRET = this.adobe_document_generation_api.$auth.client_secret;

			try {
				// Initial setup, create credentials instance
				const credentials = new ServicePrincipalCredentials({
					clientId: PDF_SERVICES_CLIENT_ID,
					clientSecret: PDF_SERVICES_CLIENT_SECRET
				});

				// Creates a PDF Services instance
				const pdfServices = new PDFServices({ credentials });

				// Creates an asset(s) from source file(s) and upload
        const response = await axios.get("https://developer.adobe.com/document-services/docs/receiptTemplate.docx", { responseType: 'stream' });
        const readStream = response.data;
				const inputAsset = await pdfServices.upload({
					readStream,
					mimeType: MimeType.DOCX
				});

				// Setup input data for the document merge process
      const jsonDataForMerge = {
        "author": "Gary Lee",
        "Company": {
          "Name": "Projected",
          "Address": "19718 Mandrake Way",
          "PhoneNumber": "+1-100000098"
        },
        "Invoice": {
          "Date": "January 15, 2021",
          "Number": 123,
          "Items": [
            {
              "item": "Gloves",
              "description": "Microwave gloves",
              "UnitPrice": 5,
              "Quantity": 2,
              "Total": 10
            },
            {
              "item": "Bowls",
              "description": "Microwave bowls",
              "UnitPrice": 10,
              "Quantity": 2,
              "Total": 20
            }
          ]
        },
        "Customer": {
          "Name": "Collins Candy",
          "Address": "315 Dunning Way",
          "PhoneNumber": "+1-200000046",
          "Email": "cc@abcdef.co.dw"
        },
        "Tax": 5,
        "Shipping": 5,
        "clause": {
          "overseas": "The shipment might take 5-10 more than informed."
        },
        "paymentMethod": "Cash"
      };

				// Create parameters for the job
				const params = new DocumentMergeParams({
					jsonDataForMerge,
					outputFormat: OutputFormat.PDF
				});

				// Creates a new job instance
				const job = new DocumentMergeJob({ inputAsset, params });

				// Submit the job and get the job result
				const pollingURL = await pdfServices.submit({ job });
				const pdfServicesResponse = await pdfServices.getJobResult({
					pollingURL,
					resultType: DocumentMergeResult
				});

				// Get content from the resulting asset(s)
				const resultAsset = pdfServicesResponse.result.asset;
				const streamAsset = await pdfServices.getContent({ asset: resultAsset });

				// Creates a write stream and copy stream asset's content to it
				const outputFilePath = "/tmp/generatePDFOutput.pdf";
				console.log(`Saving asset at ${outputFilePath}`);

				return new Promise((resolve, reject) => {
					const writeStream = fs.createWriteStream(outputFilePath);
					streamAsset.readStream.pipe(writeStream);
					writeStream.on('finish', () => resolve(outputFilePath));
					writeStream.on('error', reject);
				});
			} catch(err) {
				console.error('Error generating PDF:', err);
				throw err;
			}
  },
})

// To use previous step data, pass the `steps` object to the run() function
export default defineComponent({
  async run({ steps, $ }) {
    // Return data to use it in future steps
    return steps.trigger.event
  },
})