Oracle service for Moonriver Staking Cover contract

Collects staking data from Moonriver and reports to the contract at https://github.com/ioannist/moonriver-delegator-cover-contract

How it works

• The service checks if there is a new era (round) to report, and if it has already reported the last completed era
• It starts collecting staking data from the parachain and signs and sends the data to the OracleMaster contract.

Requirements

• The service is a binary executable compiled from Go. You can run it under systemd. TODO
• The service is also available as an AWS Lambda microservice. To run it this way you will need to deploy it to your AWS account.

Build AWS mircroservice

• Make sure your system has AWS credentials stored
• Create a Go Lambda called SmDelegatorCoverOracle in your AWS account
• in deploy-go.bat, edit "--profile=mb" to use your AWS profile, or remove it if you are only using one AWS account in your system
• Edit stakemovr.com to your AWS s3 bucket, where your compiled code will be uploaded
• Make sure Golang > 1.19 is installed
• Execute the following to build and deploy the service

./deploy-go.bat

Configuration options

Go to your AWS Lambda in the AWS console and save the following Env variables in Configuration:

ETH_URL: the https endpoint for Ethereum calls on Moonriver, Required.

GAS_LIMIT: 10000000 will do, Required.

ORACLE_MASTER: the address of the ORACLE MASTER contract, Required.

INACTIVITY_COVER: the address of the INACTIVITY COVER contract, Required.

ORACLE_MEMBER_PKEY: the private key of your account that you will use to sign oracle reports, Required.

RPC_URL: the rpc endpoint for Moonriver, Required.

MAX_DELEGATORS_IN_REPORT: up to how many delegators to submit in a report for one collator, Required.