I recently tackled a challenging project when building an Access Key Manager. This tool would help people create, manage, and cancel special keys that keep information safe. I used Node.js, a powerful tool for building things on the internet, along with Express and MongoDB.
Project Overview
The Access Key Manager allows users to generate, manage, and revoke access keys for secure authentication. I designed a scalable backend architecture using Node.js, Express, and MongoDB.
The project Features include Generating and managing access keys, User authentication and authorization, Key revocation and expiration handling, Database integration with MongoDB
Challenges I encountered with database
While working on a project, and the database query was very slow. It took over 10 seconds to run, which caused a big delay in the application's response time. This was a serious issue because users had to wait too long for the app to respond.
Step-by-Step Solution
Identified the Root Cause: I used special tools to analyze the database and find out why the query was slow. This process is called database profiling. It showed me how the query was running and where the delays were happening.
Optimized the Query: After understanding the problem, I worked on making the query faster. I added indexes, which help the database find information quickly. I also rewrote parts of the query to make it more efficient and reduced the number of joins, which are connections between different tables in the database.
Implemented Caching: To make the application even faster, I added a caching layer. Caching stores frequently accessed data so the app can retrieve it quickly without running the query every time.
Monitored Performance: Finally, I set up tools to monitor the performance of the query continuously. This helped me see how well my optimizations were working and make further adjustments if needed.
Crytographic challenge
I encountered a cryptographic challenge that truly tested my skills and patience.
the purpose of the project was to generate and manage access keys securely. These keys are like secret codes that ensure only authorized users can access certain information. The challenge was to implement this securely in a command-line interface (CLI) using Node.js.
Step-by-Step Solution
I decided to use the built-in Node.js crypto library for secure key generation. This library provides strong cryptographic functions that are essential for generating secure keys.
I created a function that uses the crypto library to generate cryptographically secure keys. This ensures that the keys are strong and hard to guess.
To keep the keys safe, I used environment variables and a secure storage solution. This prevents the keys from being exposed or leaked.
I built a simple CLI tool using Node.js that allows users to generate, list, and delete keys. This tool makes it easy to manage keys directly from the command line.
I added extra security measures like rate limiting and logging to monitor and prevent misuse of the CLI tool. These measures help protect the system from attacks.
Lessons Learned
Using profiling tools is crucial to understand and fix slow queries.
Caching can significantly speed up the application by reducing the need to run the same query multiple times.
Solving complex problems takes time and effort, but the results are worth it.
Using the right tools ensures the security of the keys.
Proper storage and handling of keys are crucial to maintaining security.
Creating a CLI tool made it easier to manage keys and enhanced the overall user experience.
Teamwork and Personal Contribution
I didn't work on the project alone; my colleagues did their parts too. However, it's essential to talk about my own contribution to building the application. I worked on token generation and verification as well. There were fewer challenges in those aspects. My imperfections will be made perfect by joining an internship with HNG Internship.
Why HNG Internship?
My true interest lies in DevOps, not backend. Unfortunately, AWS and Azure didn't cooperate due to issues with my debit card, so this content ended up being about backend instead of DevOps. I'm excited to join the HNG Internship program because it offers a unique opportunity to learn from experienced mentors, work on real-world projects, and connect with a community of like-minded developers. I'm eager to gain new skills, build my portfolio, and contribute to the tech ecosystem. Learn more about the program here. You will benefit more with the premium version as well.
Conclusion
Building the Access Key Manager with Node.js was a rewarding experience that tested my backend skills. I'm proud of what I achieved and look forward to continuing my growth with the HNG Internship program. Join me on this journey, and let's grow together as backend developers!