README.md

Fetch Receipt Processor Implementation

Prerequisites

Bun - https://bun.sh/docs/installation

Install & Run - Manual

To install dependencies:

bun install
bun run src/index.ts

Test - Manual

bun test

Install, Test, & Run - Docker

docker build --pull -t <image_name> .
docker run -d -p 3000:3000 <image_name>

Q&A

Why TypeScript?

While I love learning new languages, I'm most comfortable in TS/JS. I want to demonstrate my best, and I can't do that while simultaneously picking up new language (at least not in a sane amount of time).

Why Bun?

Bun was primarily selected for it's out-of-the-box TypeScript support, speed, and built-in testing framework. This makes it a reasonable choice for this type of exercise.

Why use Express and not Bun's HTTP server?

The out-of-the-box HTTP server requires manual parsing of request objects and manual creation of response objects. It leaves a lot of room for human error.

Why not use HTTPS?

For the simplicity of running this exercise, HTTP is used. In production, HTTPS would be configured.