You have 2 options to run the service
- Export the variables discussed in the assignment and run
./start.sh(you need docker for it, but no dependency on installed JVM) - Export the variables discussed in the assignment and run
start_with_gradle_only.sh, the result can be unstable and depends on JVM installed on host machine
To export variables for local execution simply run with your input:
export CSCARDS_ENDPOINT="<your-api-cscard-endpoint>"
export SCOREDCARDS_ENDPOINT="<your-api-score-cards-endpoint>"
export HTTP_PORT="<your-http-port>"The microservice is written using Kotlin and SpringBoot and heavily relies on feature of this language for async programming - Coroutines
- The entrypoint for the system in
CreditCardsInfoController - It launches the service
CreditCardsInfoProverServicewhich is responsible for calling all integrations CreditCardsInfoProverServiceasynchronously gathers the responses from the providers (in current case only 2, but can be easily extended for N)- If the provider takes too long to respond (timeout is configurable in
application.yml) or responded with an error, default fallback method is called (For real life services it makes sense to use Netflix Hystrix, or spring cloud circuit breaker) - The data classes are responsible for their own transformation to other data class, so in case we would need to add another integration service, we could have added webClient, integrationService, and add DTO mappings
- Due to creation of Dockerfile the application can be deployed to Kube/ECS/EKS/Cloudrun/<insert your service name>
- The App is stateless so multiple replicas can be launched as well