ERC20 Watcher

• Create developer facing GQL schema (erc20.graphql) for ERC20 contracts
  • GQL queries that return useful information
    • Individual token data corresponding to the ERC20 ABI
    • Aggregate data like running 1-day, 7-day & 30-day transfer counts and volumes
  • GQL mutation to add a new ERC20 contract to watch
• Create a server (erc20-info-server) to expose the above GQL API
  • Initally, the GQL resolvers will return mock data
• Create a basic React app (erc20-dashboard) that consumes the GQL API from erc20-info-server.
• Create a new watcher (erc20-watcher-ts) that is capable of watching multiple ERC20 tokens, capturing their events and state
  • Update the erc20-info-server GQL resolver to return data by querying the lower-layer erc20-watcher-ts GQL API
  • For GQL result data, at a minimum, log the request and list of CIDs/mhKeys required to generate that result.
    • Note: This implies, for example, performing aggregation in code instead of at the SQL layer.
• Create an ERC20 watcher factory (erc20-watcher-factory-ts) that auto-detects ERC20 tokens created on-chain and calls erc20-info-server to request watching them.