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I have a PDF attached to a email that i use as trigger, i want to download that PDF and convert the text in it to json so i can use the data in next step
To download a PDF attached to an email and convert its text to JSON for use in the next step of your Pipedream workflow, you can follow these steps. This example assumes you’re using the Email trigger to start your workflow when you receive an email with a PDF attachment. 1. Trigger your workflow with the Email trigger. This will start your workflow whenever a new email is received. 2. Download the PDF attachment to the /tmp directory. You can access attachments through steps.trigger.event.attachments. Each attachment object contains a contentUrl property, which you can use to download the file. 3. Convert the PDF text to JSON. This step requires extracting text from the PDF and then formatting it as JSON. This might require custom logic depending on the structure of your PDF. Here’s an example workflow step that downloads a PDF attachment and uses a hypothetical pdf-to-json library to convert the text to JSON: import { axios } from "@pipedream/platform"; import fs from "fs"; import { simpleParser } from "mailparser"; // For parsing the email // Hypothetical library for demonstration // You'll need to replace this with actual code or library that can convert PDF text to JSON import pdfToJson from "pdf-to-json-library"; export default defineComponent({ async run({ steps, $ }) { // Assuming the PDF is the first attachment const pdfUrl = steps.trigger.event.attachments[0].contentUrl; // Download the PDF to the `/tmp` directory const pdfPath = `/tmp/attachment.pdf`; await axios($, { method: "GET", url: pdfUrl, responseType: "stream", }).then(response => { return new Promise((resolve, reject) => { response.data.pipe(fs.createWriteStream(pdfPath)) .on("finish", resolve) .on("error", reject); }); }); // Convert the PDF text to JSON // This is a placeholder function. You'll need to implement this functionality // based on the structure of your PDF and how you want to convert it to JSON const pdfText = await pdfToJson(pdfPath); return pdfText; }, }); Please note, the pdfToJson function is hypothetical and represents the step where you’d convert the PDF text to JSON. You’ll need to
make a sfirst step that only downloads the file to be used in the next step
To create a first step in your Pipedream workflow that downloads a file to be used in subsequent steps, you can use the following Node.js code. This example demonstrates how to download a file to the /tmp directory, which is the only writable and readable directory in Pipedream workflows. You can then access this file in the next steps of your workflow. import { pipeline } from "stream/promises"; import fs from "fs"; import got from "got"; export default defineComponent({ async run({ steps, $ }) { // Replace "https://example.com/file.pdf" with the URL of the file you want to download const fileUrl = "https://example.com/file.pdf"; const filePath = '/tmp/downloadedFile.pdf'; // Download the file to /tmp directory await pipeline( got.stream(fileUrl), fs.createWriteStream(filePath) ); // Optionally, return the path of the downloaded file for use in subsequent steps return filePath; } }) In this code, replace "https://example.com/file.pdf" with the URL of the file you wish to download, and adjust the filePath variable if you prefer a different file name or extension in the /tmp directory. This step will download the file, and you can use the file path in subsequent steps of your workflow to process or manipulate the downloaded file as needed.
how do i Download the PDF attachment in a email to the /tmpdirectory?
To download a PDF attachment from an email to the /tmp directory in a Pipedream workflow, you’ll need to use a combination of the Email trigger to start the workflow when a new email with an attachment is received, and custom Node.js code to download the attachment to the /tmp directory. Unfortunately, the Email app documentation provided does not include a direct example for downloading attachments from emails. However, I can guide you through a general approach using Node.js, assuming you have access to the email’s attachment URL. First, ensure your workflow is triggered by new emails. This might involve using a pre-built Email trigger in Pipedream that listens for new emails. Once the workflow is triggered by an email with an attachment, you can use a Node.js code step to download the attachment. Here’s a general example of how you might write the Node.js code to download a file (in this case, a PDF attachment) to the /tmp directory. This example assumes you have the URL of the PDF attachment: import { axios } from "@pipedream/platform" import fs from 'fs' import path from 'path' export default defineComponent({ async run({ steps, $ }) { // Assuming you have the URL of the PDF attachment const pdfUrl = "URL_OF_THE_PDF_ATTACHMENT_HERE"; // Specify the path in the /tmp directory to save the PDF const filePath = path.join('/tmp', 'attachment.pdf'); // Download the PDF and save it to the specified path const response = await axios($, { url: pdfUrl, responseType: 'stream', }); // Create a write stream to save the file const writer = fs.createWriteStream(filePath); // Pipe the response data to the file response.data.pipe(writer); return new Promise((resolve, reject) => { writer.on('finish', resolve); writer.on('error', reject); }); }, }); Please replace "URL_OF_THE_PDF_ATTACHMENT_HERE" with the actual URL of the PDF attachment. This code uses the axios library to make a GET request to the PDF URL, specifying responseType: 'stream' to handle the PDF content as a stream. It then writes this stream to a file in the /tmp directory using Node.js’s fs module. Remember, this is a general approach.
i have a attached pdf file to an email at steps.trigger.event.attachments[0].contentUrl
How can i download that and make it available in the next step?
To download the attached PDF file from an email and make it available for use in the next step of your Pipedream workflow, you can follow the steps below. This example demonstrates how to download the file to the /tmp directory, which is the writable directory available in Pipedream’s environment. import { axios } from "@pipedream/platform"; import fs from "fs"; export default defineComponent({ async run({ steps, $ }) { // URL of the attached PDF file const pdfUrl = steps.trigger.event.attachments[0].contentUrl; // Download the PDF file to the /tmp directory const response = await axios($, { url: pdfUrl, method: "GET", responseType: "stream", }); const path = `/tmp/downloaded_file.pdf`; response.data.pipe(fs.createWriteStream(path)); // Wait for the file to be fully written await new Promise((resolve, reject) => { response.data.on("end", resolve); response.data.on("error", reject); }); // Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps // You can return the file path to use it in subsequent steps return path; }, }); This code does the following: - Retrieves the URL of the attached PDF file from the steps.trigger.event.attachments[0].contentUrl. - Uses the axios function to make a GET request to download the file. The responseType: "stream" option is used to handle the download as a stream. - Writes the downloaded file to the /tmp directory using a writable stream created with fs.createWriteStream. - Waits for the file to be fully written to disk before proceeding. - Returns the path to the downloaded file, making it available for use in subsequent steps of your workflow. Remember, the downloaded file is now stored at /tmp/downloaded_file.pdf and can be accessed by subsequent steps in your workflow.
I was running the below code but got errors,
**import** { axios } **from** "@pipedream/platform";
**import** fs **from** "fs";
export **default** defineComponent({
**async** run({ steps, $ }) {
// URL of the attached PDF file
**const** pdfUrl = steps.trigger.event.attachments[0].contentUrl;
_`// Download the PDF file to the /tmp directory`_
`**const** response = **await** axios($, {`
`url: pdfUrl,`
`method: "GET",`
`responseType: "stream",`
`});`
`**const** path = `/tmp/downloaded_file.pdf`;`
`response.data.pipe(fs.createWriteStream(path));`
_`// Wait for the file to be fully written`_
**`await`** `**new** Promise((resolve, reject) => {`
`response.data.on("end", resolve);`
`response.data.on("error", reject);`
`});`
_`// Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps`_
_`// You can return the file path to use it in subsequent steps`_
`**return** path;`
},
});
ACTIVE_HANDLEThis step was still trying to run code when the step ended. Make sure you promisify callback functions and await all Promises. (Reason: TLSSocket, Learn more: https://pipedream.com/docs/code/nodejs/async/)
TypeError
Cannot read properties of undefined (reading 'pipe')
It looks like you’re encountering two issues with your code. The first issue is related to the asynchronous handling of the file download and writing process, and the second issue is a TypeError related to the response.data.pipe operation. ### Addressing the ACTIVE_HANDLE Warning The warning you’re seeing suggests that some asynchronous operations in your code did not complete before the step ended. This is likely due to how you’re handling the file download and write process. Your approach to wait for the file to be fully written using a Promise is correct, but let’s ensure that all asynchronous operations are properly awaited. ### Fixing the TypeError The TypeError you’re encountering (Cannot read properties of undefined (reading 'pipe')) suggests that response.data is undefined at the time you’re trying to call .pipe() on it. This could be due to how the response is being handled or a misunderstanding of the response structure. ### Revised Code Let’s address both issues with a revised version of your code. Note that I’m using the same structure and correcting where necessary: import { axios } from "@pipedream/platform"; import fs from "fs"; export default defineComponent({ async run({ steps, $ }) { // URL of the attached PDF file const pdfUrl = steps.trigger.event.attachments[0].contentUrl; // Download the PDF file to the /tmp directory const response = await axios($, { url: pdfUrl, method: "GET", responseType: "stream", }); const path = `/tmp/downloaded_file.pdf`; const writer = fs.createWriteStream(path); response.data.pipe(writer); // Wait for the file to be fully written await new Promise((resolve, reject) => { writer.on("finish", resolve); writer.on("error", reject); }); // Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps // You can return the file path to use it in subsequent steps return path; }, }); Key Changes: - Ensured that the responseType is set to "stream" to handle the response as a stream. - Used fs.createWriteStream to write the file to the /tmp directory. - Used the writer (the result of `fs.createWrite
im getting the error
This step was still trying to run code when the step ended. Make sure you promisify callback functions and await all Promises. (Reason: FSReqCallback, Learn more: Running asynchronous code in Node.js - Pipedream)
TypeError
Cannot read properties of undefined (reading ‘pipe’)
when trying to run below code
import { axios } from "@pipedream/platform";
import fs from "fs";
export default defineComponent({
async run({ steps, $ }) {
// URL of the attached PDF file
const pdfUrl = steps.trigger.event.attachments[0].contentUrl;
// Download the PDF file to the /tmp directory
const response = await axios($, {
url: pdfUrl,
method: "GET",
responseType: "stream",
});
const path = `/tmp/downloaded_file.pdf`;
const writer = fs.createWriteStream(path);
response.data.pipe(writer);
// Wait for the file to be fully written
await new Promise((resolve, reject) => {
writer.on("finish", resolve);
writer.on("error", reject);
});
// Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps
// You can return the file path to use it in subsequent steps
return path;
},
});
It looks like you’re encountering an issue with streaming a PDF file download to the /tmp directory in a Pipedream workflow. The error message suggests that there’s a problem with how the streaming and promise handling is implemented in your code. Let’s address the issues step by step. First, the error message you’re seeing, “Cannot read properties of undefined (reading ‘pipe’)”, indicates that response.data is undefined. This is likely because the axios request with responseType: "stream" does not return the response data in the data property directly. In Pipedream’s implementation of axios, the response data is returned directly, not under a data property. Second, to ensure that your code waits for the file to be fully written before proceeding, you correctly wrapped the event listeners in a promise. However, the error message suggests ensuring all promises are awaited and callback functions are promisified. Let’s correct the code with these points in mind: import { axios } from "@pipedream/platform"; import fs from "fs"; export default defineComponent({ async run({ steps, $ }) { // URL of the attached PDF file const pdfUrl = steps.trigger.event.attachments[0].contentUrl; // Download the PDF file to the /tmp directory const response = await axios($, { url: pdfUrl, method: "GET", responseType: "stream", returnFullResponse: true // Ensure we get the full response to access the stream }); const path = `/tmp/downloaded_file.pdf`; const writer = fs.createWriteStream(path); // Ensure response is streamed correctly response.data.pipe(writer); // Wait for the file to be fully written await new Promise((resolve, reject) => { writer.on("finish", resolve); writer.on("error", reject); }); // Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps // You can return the file path to use it in subsequent steps return path; }, }); Please note the addition of returnFullResponse: true in the axios request configuration. This adjustment ensures that you receive the full response object, allowing you to access the stream via response.data. If you continue to encounter issues, consider reviewing the Pipedream documentation
i was running the below code that seems to create a pdf file,
import { axios } from "@pipedream/platform";
import fs from "fs";
export default defineComponent({
async run({ steps, $ }) {
// URL of the attached PDF file
const pdfUrl = steps.trigger.event.attachments[0].contentUrl;
// Download the PDF file to the /tmp directory
const response = await axios($, {
url: pdfUrl,
method: "GET",
responseType: "stream",
returnFullResponse: true // Ensure we get the full response to access the stream
});
const path = `/tmp/downloaded_file.pdf`;
const writer = fs.createWriteStream(path);
// Ensure response is streamed correctly
response.data.pipe(writer);
// Wait for the file to be fully written
await new Promise((resolve, reject) => {
writer.on("finish", resolve);
writer.on("error", reject);
});
// Now the PDF file is available at /tmp/downloaded_file.pdf for the next steps
// You can return the file path to use it in subsequent steps
return path;
},
});
But i also got this warning,
Warning
• Code was still running when the step ended. Make sure to await all Promises, or promisify callback functions. May be a false positive
Based on the code you’ve shared and the warning you received, it looks like your code is correctly awaiting all Promises, but the warning might be related to how the file stream is handled. The warning you’re seeing is common when asynchronous operations are not awaited properly, as detailed in the Pipedream documentation on async code. However, your use of await new Promise to wait for the file write operation to complete should correctly handle the asynchronous file writing. Given this, the warning could be a false positive, as mentioned in the False positives section of the Pipedream documentation. This can happen if Pipedream detects that code is still running by the time the step completes, even though all relevant operations have succeeded. This is sometimes observed with operations that involve external libraries or operations like file streaming, where the Promise resolves correctly, but Pipedream’s detection mechanism still flags it. If you’re confident that your file is being downloaded and written to the /tmp directory as expected, and all other operations in your workflow are succeeding without issues, you might be encountering a false positive warning. In such cases, it’s recommended to file a bug with Pipedream, providing details of your workflow and the steps to reproduce the warning. This will help the Pipedream team investigate and address any potential issues with the warning mechanism. For now, if your workflow’s functionality is not impacted, you can proceed with your implementation, keeping in mind to periodically review your workflow’s execution logs for any unexpected behavior.
i have steps.code.$return_value with a path to a pdf file, i want to get the pdf data back as json in a step to use in next
To access the PDF data as JSON in a subsequent step after obtaining the path to the PDF file in steps.code.$return_value, you’ll first need to ensure that the PDF data can be represented in JSON format. This typically involves reading the PDF file, extracting the data you need, and then formatting that data as JSON. Assuming you have the path to the PDF file and you want to extract text from it to use in the next steps, you would need a way to read the PDF file and convert its contents into a JSON structure. However, directly converting PDF files to JSON within Pipedream workflows, especially without knowing the specific structure of the PDF or what data needs to be extracted, can be complex and might require external libraries or services that specialize in PDF parsing. Pipedream does not natively support PDF parsing to JSON within its standard library. You might need to use an external API or service that can parse PDFs and return the data in JSON format, then call this service from your Pipedream workflow. Here’s a generic example of how you could make an HTTP request to an external API that converts PDF to JSON. This example assumes there’s an API that accepts PDF files and returns JSON data: import { axios } from "@pipedream/platform"; export default defineComponent({ async run({ steps, $ }) { // Assuming steps.code.$return_value contains the path to your PDF file const pdfPath = steps.code.$return_value; // You would replace this URL with the endpoint of the PDF parsing service you're using const apiUrl = "https://api.example.com/pdf-to-json"; // Making a POST request to the API with the PDF file // The exact way to send the file will depend on the API's requirements const response = await axios($, { method: "POST", url: apiUrl, data: { file: pdfPath, // This might need to be adjusted based on how the API expects to receive the file }, }); // The response from the API is assumed to be the JSON representation of the PDF return response.data; }, }); Please note, you’ll need to replace "https://api.example.com/pdf-to-json" with the actual endpoint of the service you’re using, and adjust the request payload according to the API’s documentation. If you’re looking to perform this operation entirely within