Reflecting on Past Projects - JavaScript

October 31, 2018

Every now and then, a friend of mine reaches out and discuss previous projects we had worked on together. As we looked back at code, there was some obvious lessons that we took away from the project. In this post, I reflect on several JavaScript projects that I have worked on over the course of my career. In each project, I will try to provide:

  • technologies used and rough size of project
  • an overview of the project
  • a critique about the approach taken to manage the project
  • what I would’ve done differently

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AWS Lambda - Handler Lifetime

October 28, 2018

While working at Dosh, I had pretty heavy exposure to managing NodeJS services running in AWS Lambda. During that time, I had learned a few things about the platform that can be leveraged when writing Lambda services. Some of these lessons may influence how you write services but can also give you some performance boosts. It’s important to note that some of the behaviors that I observed about AWS Lambda may not apply to other serverless technologies.

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AWS Lambda - Local Development

October 27, 2018

While working at Dosh, I had pretty heavy exposure to managing NodeJS services running in AWS Lambda. During that time, I had learned a few things about the platform that can be leveraged when writing Lambda services. Some of these lessons may influence how you write services but can also give you some performance boosts. It’s important to note that some of the behaviors that I observed about AWS Lambda may not apply to other serverless technologies.

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NodeJS gRPC Code Reference

May 07, 2018

While working at Indeed, I did a fair amount with gRPC. I became rather familiar with the Java, Go, NodeJS, and python implementations. During my vacation between jobs, I decided to revisit one of my old projects and try to migrate it to using gRPC. By doing so, I would be able to support a larger variety of request types (streaming, non-streaming, etc). When I started to look for good NodeJS code samples or reference implementations, I was rather disappointed with what I found. Many of the ones I could get my hands on only demonstrated unary methods and not any of the streaming API’s. After a lot of time digging through source and a few implementations online, I finally assembled a good reference.

In this post, I only wanted to detail what the method calls look like on both ends of the wire. There are some additional best practices that should be taken into consideration, but I do not plan on covering those here.

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Delaying Asynchronous Message Processing

June 14, 2017

At Indeed, we always consider what’s best for the job seeker. When a job seeker applies for a job, we want them to have every opportunity to be hired. It is unacceptable for a job seeker to miss an employment opportunity because their application was waiting to be processed while the employer makes a hire. The team responsible for handling applies to jobs posted on Indeed maintains service level objectives (SLOs) for application processing time. We constantly consider better solutions for processing applications and scaling this system.

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