tjarksaul / ubirch-event-log

The Event Log System is a collection of services that allow the creation, collection and aggregation of Merkle Trees that are connected with each other and that can be persisted and anchored into blockchains.

UBIRCH EVENT LOG ECO-SYSTEM

The Event Log System is a collection of services that allow the collection of merkle trees to be connected with each other and that can be anchored in blockchains.

• Event Log Service

• Event Log Dispatcher

• Event Log Encoder

• Event Log Chainer

• Event Log Kafka Lookup

• Event Log SDK

• Event Log Discovery Creator

• Event Log Verification

Helper Libs

• Event Log Core

• Kafka Express

Prerequisites

In order to run the applications, you will need a running instance of Kafka and Cassandra.

Please refer to DB Migrations in order to run the migration scripts.

Install

To build the application run the following command:

    mvn install

After doing this, you can drill down to working on the particular project you may be interested in.

Useful Scripts

migrateDb.sh Helps in the migration of the db evolution scripts.

Prometheus Metrics

Note: If you're starting the multiple services on the same machine/jvm, the port might change and you will have to change it accordingly. The port that is assigned to Prometheus is show on the console of every service at boot.

  (1) http://localhost:4321/

or

   (2) watch -d "curl --silent http://localhost:4321 | grep SERVICE-NAME"

You can inspect the service name by running option (1) and finding "service"