Microservices api assignment

Running the code

docker and docker-compose needs to be setup first

cd user_service && docker-compose up -d && cd ..
cd user_interaction_service && docker-compose up -d && cd ..
cd content_service && docker-compose up -d && cd ..

NOTE: This will take a fair bit of time since rust is a compiled language it needs a few minutes to compile

Ingesting data

The scripts folder has a populate.sh script that can populate the databases with dummy data as long as nothing is modified beforehand

cd scripts
./populate.sh

Note: The content service can ingest csv file with Content-Type: text/csv but the dates need to be a unix timestamp

API endpoints

Since there is no service discovery I have hardcoded the values into each microservices .env file

• user_service -> localhost:8001
• content_service -> localhost:8002
• user_interaction_service -> localhost:8003

Documented with openapi/swagger

Every route is documented with openapi/swagger specification and can be found after running the api and visiting 'address/swagger' The documentation is automatically generated during compilation and doesn't need to be manually generated.

• user_service -> localhost:8001/swagger
• content_service -> localhost:8002/swagger
• user_interaction_service -> localhost:8003/swagger

Dockerized everyting

Including the databases (postgresql)

Each service has a builder (rust:latest) which compiles the code and then runs it via a runner (debian:stable-slim) and a postgresql (postgresql:latest) container for the database. So thats 2 containers for each service

• user-service-api
  • user_service
  • user_postgres_service
• content-service-api
  • content_service
  • content_postgres_service
• user-interaction-service-api
  • user_interaction_service
  • user_interaction_postgres_service

Microservices

Everything is a microservice with 3 separate instances of postgresql running and obviously 3 separate databases.

About the codebase

This is build using rust language and rocket framework, using diesel ORM and postgresql database.