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ACES Listener implementation for Ark
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README.md

ACES Listener Ark

This an Ark implementation of the ACES Listener API. Consumers create subscriptions to register a callback URL. The listener app then scans the ARK blockchain and sends new transactions to subscribers.

Run Application

Development

Set up a local database instance using docker:

docker run -d -p 5432:5432 \
--name aces_listener_ark_db \
-e POSTGRES_USER=postgres \
-e POSTGRES_PASSWORD=password \
-e POSTGRES_DB=aces_listener_ark_db \
postgres:9.6.1

Run application using maven:

mvn spring-boot:run

Production

To run the application in a live environment, you can build a jar package using mvn package and then run the jar app generated under /target build directory with you custom configuration:

java -jar application.jar --spring.config.location=file:/etc/my-application-config.yml

Example Usage

Consumers register their Http callback endpoint by posting to the subscriptions endpoint. Immediately following successful a subscription the encoded listener will send all new Ark transactions to the registered callback URL.

curl -X POST 'localhost:9091/subscriptions' \
-H 'Content-type: application/json' \
-d '{
  "callbackUrl": "http://localhost:9091/public/eventLogger",
  "minConfirmations": 5
}'
{
  "id" : "1c2ddeb7-cf74-478d-8f77-2f326b8c2db4",
  "callbackUrl" : "http://localhost:9091/public/eventLogger",
  "createdAt" : "2017-10-24T04:15:17.091Z"
}
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