Broker Ethereum

Publisher/subscriber services for the Geth JSON RPC-API implemented as microservices. All of the microservices are implemented using the chili-core framework and written in Kotlin.

Includes the following libraries

• Hazelcast
• Web3j
• Vert.x (chili)
• Polymer 3 / web components
• ElasticSearch
• Kibana
• Geth 1.9.2

Overview of the services in the system, the *Service components are implemented using chili-core.

NOTE 1: the web interface is not a part of this repository as its unlicensed.

NOTE 2: uses block data enriched with mock whisper data as the whisper RPC calls isn't implemented in the Web3j client.

Build & Run

1. Build the jar dist

./gradlew jar

2. Start geth ethereum client

$ geth --testnet --graphql --shh --rpcapi admin,miner,eth,web3 --rpc console

Start all services in the same JVM

java -jar <beth>.jar --deploy all

Websocket now deployed on :8080.

To host the UI during development run

npm install
polymer serve

From the resouraces/web/ folder.

To build the distribution bundle run

polymer build

GraphQL

See: bitfalls.com/exploring-ethereum-graphql

Example query to grab block 0x1.

query { block(number: 1) { hash } }