nodejs Questions
2 months ago
Express.js: best practices for structuring a large Node.js API
My Express API started as a simple project but has grown to 50+ routes. The codebase is getting messy. Currently everything is in one app.js file.
What's the recommended folder structure for a production-grade Express API? Should I be looking at something like NestJS at this scale?
A
Alex Martinez
asked 2 months ago
1
Answers
46
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4400
Views2 months ago
Docker: container can't connect to MongoDB running on host machine
I'm running a Node.js app inside Docker and trying to connect to a MongoDB instance running on my host machine. The connection string mongodb://localhost:27017 fails inside the container.
Error: connect ECONNREFUSED 127.0.0.1:27017I know localhost inside Docker refers to the container itself. How do I properly connect to the host's MongoDB?
2 months ago
Node.js: how to properly handle environment variables across dev/staging/prod?
I'm using .env files with dotenv but I'm not sure about best practices for managing different environments. My concerns:
- Should I have
.env.development,.env.staging,.env.production? - How do I prevent secrets from being committed to git?
- How do colleagues share env variables securely?
2 months ago
How do I handle async/await errors properly in JavaScript?
I've been using async/await in my Node.js app but I keep running into unhandled promise rejections. Here's my current code:
async function fetchData() {
const res = await fetch('https://api.example.com/data');
const json = await res.json();
return json;
}What's the correct pattern for catching errors? Should I use try/catch everywhere or is there a better approach?