Log Query Fields

Logs can be queried from the following:

• Transaction logs from 'block' root field
• Transaction logs from 'transaction' root field
• ERC20 Approval Event Logs
• ERC20 Transfer Event Logs

For information on each field, search the Document Explorer in the EthQL demo for the 'Log' field.

Transaction logs from 'block' root field

Fiddle with this query.

{
  block(number: 5450945) {
    transactionAt(index: 19) {
      logs {
        index
        account {
          address
        }
        topics
        data
        block {
          hash
        }
        transaction {
          hash
        }
        decoded {
          event
          entity
          standard
        }
      }
    }
  }
}

The example query above returns the following:

{
  block(number: 5450945) {
    transactionAt(index: 19) {
      logs {
        index: 12
        account {
          address: "0xA4eA687A2A7F29cF2dc66B39c68e4411C0D00C49"
        }
        topics: [
          "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
          "0x000000000000000000000000de7a1f96feb9cf24e56f93cf245ed13afed15f50",
          "0x000000000000000000000000729ae077e16366bc8a4d3fe41a742b94d73c4aa1"
        ]
        data: "0x0000000000000000000000000000000000000000000015eabf09c17f81b00000"
        block {
          hash: "0x7265fe158123e5cc8fa433c6c82e377cd62aa4efad94a1f7224770f492ca82ad"
        }
        transaction {
          hash: "0xf2554da480e4cba755c8de4dc3df5cba52af13c56239f2fd7e89fffd953b137b"
        }
        decoded {
          event: "Transfer"
          entity: "token"
          standard: "ERC20"
        }
      }
    }
  }
}

Transaction logs from 'transaction' root field

Fiddle with this query.

{
  transaction(hash: "0x7cc930cef131502bb78c13012caf0d99117892601b81fb95958aac98191fe6fb") {
    logs {
      index
      account {
        address
      }
      topics
      data
      block {
	hash
      }
      transaction {
	hash
      }
      decoded {
        event
        entity
        standard
      }
    }
  }
}

The example query above returns the following:

{
  transaction(hash: "0x7cc930cef131502bb78c13012caf0d99117892601b81fb95958aac98191fe6fb") {
      logs: [
        {
          index: 38
          account: {
            address: "0x60bf91ac87fEE5A78c28F7b67701FBCFA79C18EC"
          }
          topics: [
            "0x940c4b3549ef0aaff95807dc27f62d88ca15532d1bf535d7d63800f40395d16c",
            "0x000000000000000000000000baa705866f77af9194a8a91b8104438b20272958",
            "0x000000000000000000000000f477dc44297101ab68e7f05936d8f0810a223878",
            "0x484b4e0000000000000000000000000000000000000000000000000000000000"
          ]
          data: "0x0000000000000000000000000000000000000000000000000000001c3e0a3a88...",
          block: {
            hash: "0x7d5a4369273c723454ac137f48a4f142b097aa2779464e6505f1b1c5e37b5382"
          }
          transaction: {
            hash: "0x7cc930cef131502bb78c13012caf0d99117892601b81fb95958aac98191fe6fb"
          }
          decoded: null
        },
        {
          account: {
            address: "0x9e6B2B11542f2BC52f3029077acE37E8fD838D7F"
          }
          topics: [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x000000000000000000000000baa705866f77af9194a8a91b8104438b20272958",
            "0x000000000000000000000000f477dc44297101ab68e7f05936d8f0810a223878"
          ]
          data: "0x0000000000000000000000000000000000000000000000000000001c3e0a3a88"
          block: {
            hash: "0x7d5a4369273c723454ac137f48a4f142b097aa2779464e6505f1b1c5e37b5382"
          }
          transaction: {
            hash: "0x7cc930cef131502bb78c13012caf0d99117892601b81fb95958aac98191fe6fb"
          }
          decoded: {
            event: "Transfer",
            entity: "token",
            standard: "ERC20"
          }
        }
      ]
    }
  }
}

ERC20 Approval Event Logs

Fiddle with this query.

{
  block(number: 5011021) {
    transactions(filter: { withInput: true }) {
      decoded {
	... on ERC20Approve {
          entity
          standard
	    operation
          from {
            account {
              address
            }
            tokenBalance
          }
          spender {
            account {
              address
            }
            tokenBalance
          }
          value
          tokenContract {
            account {
              address
            }
            symbol
            totalSupply
          }
        }
      }
    }
  }
}

The example query above returns the following:

Note: transactions under transactions(filter) were omitted to save space

{
  block(number: 5011021) {
    transactions(filter: { withInput: true }) {
            .
            .
            .
      decoded: {
        entity: "token"
        standard: "ERC20"
        operation: "approve"
        from: {
          account {
            address: "0xb97dd07CCF7520418E34Fe2d857C16C5b17bF72d"
          }
          tokenBalance: 0
        }
        spender: {
          account {
            address: "0x2a0c0dbecc7e4d658f48e01e3fa353f44050c208"
          }
          tokenBalance: 2.186866194887079e+25
        }
        value: "4.316e+22"
        tokenContract: {
          account: {
            address: "0xdA6cb58A0D0C01610a29c5A65c303e13e885887C"
          }
          symbol: "cV"
          totalSupply: 9.931143978e+27
        }
      },
            .
            .
            .
      decoded: {
        entity: "token"
        standard: "ERC20"
        operation: "approve"
        from: {
          account {
            address: "0xd4A494Ea6F54E66CEe8a631a46464B0823aDEA64"
          }
          tokenBalance: 0
        }
        spender: {
          account {
            address: "0x8d12a197cb00d4747a1fe03395095ce2a5cc6819"
          }
          tokenBalance: 2.8866106731649495e+23
        }
        value: "250000000000000000000"
        tokenContract: {
          account: {
            address: "0x9992eC3cF6A55b00978cdDF2b27BC6882d88D1eC"
          }
          symbol: "POLY"
          totalSupply: 1e+27
        }
      },
            .
            .
            .
    }
  }
}

ERC20 Transfer Event Logs

Fiddle with this query.

{
  block(number: 3100102) {
    transactions(filter: { withInput: true }) {
      decoded {
        ... on ERC20Transfer {
          entity
          standard
	  operation
          from {
            account {
              address
            }
            tokenBalance
          }
          to {
            account {
              address
            }
            tokenBalance
          }
    	  value
          tokenContract {
            account {
              address
            }
            symbol
            totalSupply
          }
        }
      }
    }
  }
}

The example query above returns the following:

Note: transactions under transactions(filter) were omitted to save space

{
  block(number: 3100102) {
    transactions(filter: { withInput: true }) {
      decoded {
        ... on ERC20Transfer {
          entity: "token"
          standard: "ERC20"
	  operation: "transfer"
          from {
            account {
              address: "0x9e0B9dDbA97Dd4f7aDdab0B5F67036EEBE687606"
            }
            tokenBalance: 5.808409295652579e+22
          }
          to {
            account {
              address: "0x60623835fcbb0cf3e909cea55009b31bb431dd28"
            }
            tokenBalance: 20018400000000000000
          }
    	  value: "1749200000000000000"
          tokenContract {
            account {
              address: "0x37a9679c41e99dB270Bda88DE8FF50c0Cd23f326"
            }
            symbol: "YOC"
            totalSupply: 3.1e+24
          }
        }
      }
    }
  }
}