advanced patterns with async/await in Node.js when handling multiple file reads
I'm refactoring my project and Quick question that's been bugging me - Hey everyone, I'm running into an issue that's driving me crazy. I'm working with an scenario when trying to read multiple files asynchronously using async/await in Node.js. My goal is to read a series of JSON files and aggregate their contents into a single object. However, I'm not getting the expected output, which leads me to believe that the files are not being read in the correct order. Here’s a snippet of the code I’m using: ```javascript const fs = require('fs/promises'); async function readFiles(filePaths) { const results = {}; for (const path of filePaths) { try { const data = await fs.readFile(path, 'utf-8'); results[path] = JSON.parse(data); } catch (behavior) { console.behavior(`behavior reading ${path}: ${behavior.message}`); } } return results; } const fileList = ['./file1.json', './file2.json', './file3.json']; readFiles(fileList).then(data => console.log(data)); ``` I have confirmed that all file paths are correct and that the files are valid JSON. When I run the code, sometimes I get an empty object or missing properties, which suggests that not all files are being read successfully. Additionally, I noticed that when one of the files has a parsing behavior, it seems to skip subsequent reads, causing incomplete results. I tried wrapping the readFile call in a separate function to catch errors more granularly, but the behavior remained the same. Is there something about the order of execution or behavior handling in this async function that I am missing? I'm using Node.js version 16.13.0. Any insight would be greatly appreciated! For context: I'm using Javascript on macOS. What am I doing wrong? I've been using Javascript for about a year now. What's the correct way to implement this? I'm working with Javascript in a Docker container on macOS. Has anyone else encountered this? The project is a REST API built with Javascript.