Introducing Truffle DB (supplementary material)

concept-query.graphql

# concept: example query
# looks up specific information about the deployed KittySharesToken contract
{
  network(name: "mainnet") {
    contract(name: "KittySharesToken") {
      name
    
      abi {
        json # e.g. [{"constant":false,"inputs":[{"name":"n",...}],...]"
      }
    
      deployed {
        address # e.g. "0x8009bE70a9c2bcc7E29eF63dcEFdd92794f46be3"
    
        constructor {
          arguments # e.g. { name: "KittyShares", symbol: "🐱" }
        }
  	  }
    }
  }
}

playground-query-result.json

{
  "data": {
    "artifacts": {
      "contract": {
        "name": "MagicSquare",
        "abi": {
          "json": "[{\"constant\":false,\"inputs\":[{\"name\":\"n\",\"type\":\"uint256\"}],\"name\":\"generateMagicSquare\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getSquare\",\"outputs\":[{\"components\":[{\"name\":\"rows\",\"type\":\"uint256[][]\"},{\"name\":\"n\",\"type\":\"uint256\"}],\"name\":\"square\",\"type\":\"tuple\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}]"
        }
      }
    }
  }
}

playground-query-variables.json

{
  "name": "MagicSquare"
}

playground-query.graphql

query GetNameAndAbi($name: String!) {
  artifacts {
    contract(name: $name) {
      name
      abi {
        json
      }
    }
  }
}