Questions tagged [createwritestream]

54 questions
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createWriteStream instance shadowing another instance in nodeJS

My aim is to do something like that : function writer1(data,file){ const w = fs.createWriteStream(file,{flags:'w'}) for(let i = 0; i< data.length; i++){ w.write(data[i]) } w.end() } function writer2(data,file, *some-stuff*){ …
AVALFINN
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Stripe writable stream + nestjs [TypeError: Converting circular structure to JSON]

Im integrating stripes invoicing and quotes into my nestjs api. I am trying to download the quote PDF option but I having issues with node createWriteStream. Stripe API says to implement the code as follows const {createWriteStream} =…
Jason McFarlane
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why does ending a write stream clears data that was previously written to that file in nodeJS

i was trying to read content of one file and write it to another using nodeJS.everything works if i do not add fileStream.end(). Below is the code i have written: const fs= require ('fs'); const readLine = require('readline'); //read…
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Node - Is it possible that a stream closes or stops writing and how to reopen?

I could not find much information in the documentation. Using fs, is it possible that a stream opened with fs.createWriteStream closes unexpectedly or stops writing to file before calling stream.end()? One scenario that comes to my mind is an error…
DamiToma
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How get in Javascript the filename using request.pip(createWriteStream()) on close event?

I'm downloading multiple files parallel with Javascript by using request, pipe and createWriteStream: for(let i = 0; i < urls.length; i++) { let r = request(urls[i]).pipe(fs.createWriteStream(fn[i])) r.on('close', (() => { …
PowerNow
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pyspark streaming dataframe write to different path depending on column values

In databricks notebook, I am reading json files with readStream, json has structure for example: id entityType eventId 1 person 123 2 employee 234 3 client 687 4 client 687 My code: cloudfile = { "cloudFiles.format":…
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nodejs fs createWriteStream not working with file path prefix

I am trying to call an API, loop through an array of images, assign unique names to each image in the array and then write them to a local directory. If I simplify the code I can write them to the root folder .I already created the sub folder…
lharby
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How to write to xml file with hebrew content

I have an XML file with number of Records with Hebrew content and after I read It I want to save some of the Records that satisfied special condition to new XML file, but when I wrote to this new file, the Hebrew content convert to Gibberish like…
Yakir
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I'm closing my writestreams but I get Error: EMFILE: too many open files

I'm using NodeJS and the fs module and I'm getting Error: EMFILE: too many open files when using writestreams. The thing is that I'm actually closing them so what 's going on?
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How to download a file from a url that forces download with NodeJS

I am trying to download a pdf file from a API to a local file The way i am doing it is by make an axios call for the pdf. This is my request: const axiosInstance = createAxios(); const response = await axiosInstance.get('https://www.getpdf.com', { …
Mika
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How to be sure there is actually a file in a link before trying to createWriteStream

I want to be sure that there is actually a file to be downloaded before using fs.createWriteStream because as it is now, it downloads a 404 page and saves it as a xls file... I have written the following code. How can I implement that and in case of…
Breno
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GraphicsMagick .toBuffer() creates empty buffer stream

I have a Firebase Cloud Function that converts a buffer (from PDF) to a PNG using GraphcisMagick. When I attempt to write this PNG buffer to Firebase Storage, I get a file stub but no content (empty file). My conversion to PNG is failing... async…
Colin
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ReadStream is not reading uploaded file

I tried this lines to Creating ReadSteam with uploaded files and pipe to WriteStream: var f2 = req.files.f2; var f2read = fs.createReadStream(f2) var f2write = fs.createWriteStream("./trailers/" + id + ".mkv") f2read.pipe(f2write) but this…
bahoz99
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Javascript/Nodejs Downloading audio file to disk

Looking to download this wav file. Response.pipe(fileStrm) isn't doing it for me. Ive looked around. Wondering what the standard way of downloading media from a URL to file is these days. const request =…
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nodejs createWriteStream - Error: ENOENT: no such file or directory

I have this code in my node cli script const dateTime = new Date(); const logFile = path.resolve(__dirname, `${dateTime.toLocaleDateString('it-IT')}.txt`); const appLog = fs.createWriteStream(logFile, {flags: 'a+'}); console.log(chalk`{magenta.bold…
newbiedev
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