Shoyu Test

Getting Started

1. Requirements

1. Node.js version 14.18.1
2. Docker
3. Yarn

2. Build and Start

1. yarn install
2. cp .env.sample .env; modify this file if needs be
3. docker-compose up -d
4. yarn dev

GraphQL playground is available at localhost:9080.

Redis UI is available at localhost:9060.

Mongo UI is available at localhost:9070.

Notes

1. I slightly updated the given GraphQL schema: UserInput.username is a required attribute. This seems very logically considering the smart contract implementation.
2. Smart contracts events fetching jobs run every minute

TODOs

1. getAddressFromSignature function does not verify whether the correct message was signed. I could not figure out how to extract the message hash from the signature
2. When querying blockchain for contract events, it does not skip the previously processed events. Hence, I had to use Mongo's upsert functionality as a work around user already exists
3. I could not figure out how to decode/get the actual value of username from the contract event. At the moment, it stores the returned hash