CodeSnips

javascript

function escapeCell(value) {
  if (value === null || value === undefined) return '';
  const str = String(value);
  if (/[",\n\r]/.test(str)) {
    return '"' + str.replace(/"/g, '""') + '"';
  }

Stream a Large CSV Export in Express with Backpressure and an Async Row Generator

express streaming csv

by codesnips 3 tabs

java

@RestController
@RequestMapping("/api/exports")
public class ExportController {

    private final CsvStreamWriter csvStreamWriter;

Streaming a Large CSV Export in Spring Boot with StreamingResponseBody

spring-boot streaming csv

by codesnips 4 tabs

javascript

const express = require('express');
const multer = require('multer');
const os = require('os');
const fs = require('fs/promises');
const { parseCsvStream } = require('./csvStreamParser');

Stream and Validate Large CSV Uploads Row-by-Row with Node Streams and Backpressure

nodejs streams csv

by codesnips 3 tabs

javascript

const fs = require('fs');
const readline = require('readline');

async function* streamCsvRows(filePath) {
  const stream = fs.createReadStream(filePath, { encoding: 'utf8' });
  const rl = readline.createInterface({ input: stream, crlfDelay: Infinity });

Stream and Import a Large CSV File Line-by-Line with Node.js readline

nodejs streams readline

by codesnips 3 tabs