How to Import pdf-parse in NodeJS Code Without Using npm Install?

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1

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, how can i import pdf-parse instead of npm install pdf-parse in my nodejs code

2

To use the pdf-parse package in your Pipedream Node.js code, you can simply import it using the import statement: import pdfParse from "pdf-parse"; Then, you can use the pdfParse function in your code as needed. Remember to place the import statement at the top of your code, above the component definition.

3

, i got Code Error
could not compute configurable props

4

I apologize for the issue you’re facing. To help you resolve the error, I’ll need more information about your code and the specific component you’re working on. Can you please share the relevant code snippet and any additional details about the error? This will help me better understand the problem and provide a solution.

5

this is the code
import path from “path”;
import pdfParse from “pdf-parse”;
import { PineconeClient } from “@pinecone-database/pinecone”;
import { OpenAIEmbeddings } from “langchain/embeddings/openai”;
import { PineconeStore } from “langchain/vectorstores/pinecone”;
import { RecursiveCharacterTextSplitter } from “langchain/text_splitter”;
import { DocxLoader } from “langchain/document_loaders/fs/docx”;
import { TextLoader } from “langchain/document_loaders/fs/text”;
import { PDFLoader } from “langchain/document_loaders/fs/pdf”;
import mammoth from “mammoth”;

export default defineComponent({
async run({ steps, $ }) {

_//path of file_
**const** filePath = "/tmp/" + steps.download_file.$return_value.name;
**const** fileExtension = path.extname(filePath).toLowerCase();
**let** docs;
**switch** (fileExtension) {

  **case** ".docx":
      **const** docxLoader = **new** DocxLoader(filePath);
      **const** docxDocs = **await** docxLoader.load();
      console.log("Loaded DOCX document:", docxDocs);
      docs=docxDocs;
      **break**;

    **case** ".txt":
      **const** textLoader = **new** TextLoader(filePath);
      **const** textDocs = **await** textLoader.load();
      console.log("Loaded text document:", textDocs);
      docs=textDocs;
      **break**;

    **case** ".pdf":
      **const** pdfLoader = **new** PDFLoader(filePath);
      **const** pdfDocs = **await** pdfLoader.load();
      console.log("Loaded PDF document:", pdfDocs);
      docs=pdfDocs;
      **break**;
    **default**:
      console.error("Unsupported file extension:", fileExtension);
}
6

I see that you’re trying to load different types of documents (DOCX, TXT, and PDF) based on their file extensions. Your code looks mostly correct, but I noticed that you’re using import statements for packages that might not be available on Pipedream by default. To use these packages in Pipedream, you’ll need to make sure they’re supported. If they’re not supported, you might need to find alternative packages or methods to achieve your goal. For example, you can use the pdf-parse package, which is available on Pipedream. If you still encounter issues, please provide more information about the error message you’re receiving, and I’ll be happy to help you further.

7

how can i import pdf-parse

8

This import statement is not resolving the issue and is giving me errors

9

I apologize for the confusion earlier. It seems that Pipedream does not support some of the packages you’re trying to import. To help you further, please let me know which specific error messages you’re encountering. This will help me identify the problematic imports and suggest alternative solutions or packages that are compatible with Pipedream.

10

Error
Failed to load pdf-parse. Please install it with eg. npm install pdf-parse.

11

I apologize for the confusion earlier. In Pipedream, you don’t need to run npm install like you would in a local environment. To use the pdf-parse package, you can simply import it using the require statement, since it’s a CommonJS module: const pdfParse = require("pdf-parse"); Place this require statement at the top of your code, above the component definition. Then, you can use the pdfParse function in your code as needed.

12

i get require is not defined

13

I apologize for the confusion earlier. In Pipedream, you should use the import statement for ES modules. Since pdf-parse is a CommonJS module, you can use the vm module to work around this issue. Here’s an example of how to use pdf-parse in a Pipedream code step: import { readFile } from "fs/promises"; import { createRequire } from "module"; const require = createRequire(import.meta.url); const pdfParse = require("pdf-parse"); export default defineComponent({ async run({ steps, $ }) { const filePath = "/tmp/" + steps.download_file.$return_value.name; const pdfData = await readFile(filePath); const parsedData = await pdfParse(pdfData); console.log("Parsed PDF data:", parsedData); }, }); This code imports the createRequire function from the module package and creates a require function. Then, it uses the require function to import the pdf-parse package. The rest of the code reads the PDF file and parses its content using pdf-parse.

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Code Error
Error: Cannot find module ‘pdf-parse’ Require stack: - /tmp/tmp-8TQFQCtGpnjv8/7cfa6e89661d4f006412eae14d3d91eced0dcbee02118e4d2638fed5319ce2c8/component.mjs

15

I apologize for the confusion earlier. It appears that the pdf-parse package is not available on Pipedream by default. In this case, you can use an alternative method to parse PDF files using the pdfjs-dist package, which is available on Pipedream. Here’s an example of how to use pdfjs-dist to parse a PDF file: import { readFile } from "fs/promises"; import pdfjsLib from "pdfjs-dist"; export default defineComponent({ async run({ steps, $ }) { const filePath = "/tmp/" + steps.download_file.$return_value.name; const pdfData = await readFile(filePath); const pdfDocument = await pdfjsLib.getDocument({ data: pdfData }).promise; let parsedText = ""; for (let pageNum = 1; pageNum <= pdfDocument.numPages; pageNum++) { const page = await pdfDocument.getPage(pageNum); const textContent = await page.getTextContent(); const pageText = textContent.items.map(item => item.str).join(" "); parsedText += pageText + "\n"; } console.log("Parsed PDF data:", parsedText); }, }); This code reads the PDF file, parses its content using pdfjs-dist, and logs the extracted text.

16

,can you provide some insights on this please.

i want to use PDFLoader from langchain in nodejs code step but this it asks to install pdf-parse

how can I import it for usecase?