Question 1

How to handle errors properly in Node.js?

Accepted Answer

The guide recommends using async-await, extending the built-in Error object, distinguishing operational vs catastrophic errors, and centralizing error handling with logging, as detailed in the error handling section. It also advises documenting API errors with OpenAPI or GraphQL.

Question 2

Node.js best practices vs other online guides like MDN or blogs?

Accepted Answer

This repository is a curated, centralized compilation updated regularly with community input, whereas many blogs are fragmented or static. It aggregates top industry sources into a single living reference, as mentioned in the welcome section.

Question 3

What's the best way to structure a Node.js project?

Accepted Answer

Follow the component-based architecture and 3-tier layering pattern advised in the project, organizing by business components like 'user' or 'order' and separating entry-points, domain logic, and data-access layers to improve maintainability.

Question 4

How to secure a Node.js application from common vulnerabilities?

Accepted Answer

Implement security practices such as using ORM/ODM libraries to prevent injection, validating JSON schemas, managing secrets outside config files, and setting security headers, all outlined in the security section with over 25 specific guidelines.

Question 5

What testing strategies should I use for Node.js APIs?

Accepted Answer

Start with API testing, use the AAA pattern, avoid global fixtures, and test five possible outcomes including responses and state changes. The guide also recommends mocking external services and tagging tests for different scenarios, as per the testing section.

Question 6

How to deploy Node.js apps to production with Docker?

Accepted Answer

Follow Docker best practices like using multi-stage builds for lean images, logging to stdout, setting memory limits, and avoiding secrets in build args. The guide includes 15 Docker-specific guidelines for optimization and security.

Node.js Best Practices

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