wasp-routing-service

Deprecation Notice

WASP was deprecated on March 14th 2024, there will be no further dependency or security updates to this platform.

Routing Service for WASP Project. This service will take payloads associated with an ingest specific id, lookup the corresponding thing and then forward the payload to the appropriate payload processor service.

Getting started

wasp-routing-service can be run in a similar way to most nodejs application. First install required dependencies using npm:

npm install

wasp-routing-service depends on a kafka instance as a dependency which can be brought locally up using docker:

docker-compose up -d

And finally you can run the application in development mode with:

npm run dev

Or run tests with:

npm test

Environment Variables

wasp-routing-service is configured primarily using environment variables as follows:

variable	required	default	description
LOG_LEVEL	N	info	Logging level. Valid values are [trace, debug, info, warn, error, fatal]
PORT	N	3001	Port on which the service will listen
KAFKA_LOG_LEVEL	N	nothing	Logging level for kafkajs. Valid values are [debug, info, warn, error, nothing]
KAFKA_BROKERS	N	localhost:9092	Comma separated list of initial Kafka brokers to connect to
KAFKA_PAYLOAD_TOPIC	N	raw-payloads	Kafka topic to listen for raw payloads on
KAFKA_PAYLOAD_ROUTING_PREFIX	N	payloads	Prefix for topic names for specific payload processor services
THINGS_SERVICE_HOST	N	wasp-thing-service	Hostname to connect to a deployed thing-service
THINGS_SERVICE_PORT	N	3000	Port to connect to a deployed thing-service

Deploying WASP Routing Service on WASP-Cluster with Helm/Kubernetes

Install

brew install minikube helm

WASP-Cluster

Obtain the wasp-cluster from the repo: https://github.com/digicatapult/wasp-cluster.git, and follow the readme instructions.

Eval is required to provide helm with visibility for your local docker image repository:

eval $(minikube docker-env)

Build the docker image:

docker build -t wasp-routing-service .

To run/deploy the application on kubernetes via helm charts use the following values.yaml with the corresponding overrides:

helm install wasp-routing-service helm/wasp-routing-service -f helm/wasp-routing-service/ci/ct-values.yaml