Quick Overview

1 min read

PocketClinic offers software solutions to existing medical clinics.

Much like HotDoc, PocketClinic provides clinics with a user-centric patient booking system.
In addition, PocketClinic provides a telehealth service powered by our live chat service, which has been developed from the ground up using WebSockets.
PocketClinic also provides a centralised file storage solution complete with sharing permissions. Notably, file sharing was purely implemented relationally, with database table relations dictating file access.

Due to its complexity and modular requirements, a microservice solution was elected as the project's architecture.
All API endpoints were secured by our own authentication system using JWT.
Nginx was used to balance and distribute traffic across our AWS instances.
- Note
Backend Services were written in Spring Boot (Kotlin + Java). Frontend interfaces utilised Flutter.

Commits to the ‘main’ GitHub branch triggered an internal AWS workflow.
- Before merging with the deployment branch, a GitHub workflow CI pipeline tested the submitted code with pre-written tests.
This process involved the following:
- Code was downloaded from the triggered GitHub branch and onto AWS servers.
- The code was then built via a custom AWS build script, and the resulting .jar was archived into a selected S3 bucket.
- The .jar was then pulled, and a custom AWS deploy script updated running instances with a freshly launched Docker container.
  - To maintain availability, updates were done to a subset of instances at a time.
Major steps across the pipeline were monitored and logged via AWS Cloudwatch.