Tag: logs

31 Where do contract event logs get stored in the Ethereum architecture? 2016-02-13T00:57:34.150

27 How do I parse the transaction receipt log with web3.js? 2016-02-15T09:05:32.273

25 What are event topics? 2017-03-10T17:28:24.447

24 How to access the event log by knowing the contract address (web3)? 2016-03-12T21:10:18.493

23 Is searching data stored in event logs prohibitively slow? 2016-03-20T08:05:42.240

20 How can I view event logs for an ethereum contract? 2017-05-18T19:09:57.267

19 What's the Solidity statement to print data to the console? 2016-07-17T10:18:02.460

17 How does Ethereum make use of bloom filters? 2016-04-27T18:01:01.693

17 Are events permanently stored and reliably available to contracts in the future? 2016-06-25T02:20:01.333

10 Given a contract address, can I determine when the contract was deployed? 2016-02-06T17:22:46.893

10 Can a contract listen to events of another contract? 2016-03-07T06:38:03.240

10 How to make parity write logs? 2016-04-25T07:52:08.337

10 Is the LogsBloom in the block header the same as the Bloom filter in the Transaction Receipts Trie? 2016-06-14T09:15:01.257

8 Cheapest way to store a hash for proof of publication 2016-02-28T22:01:30.280

8 Ethereum event log maximum size 2016-02-29T21:15:46.180

8 How to write transaction logs into a text file in geth? 2016-07-04T08:24:52.140

8 What does Parity logs means? 2016-12-04T18:02:40.810

7 Where does the mist browser store the node log files? 2016-04-26T12:26:25.960

7 What are the benefits of using events over dedicated indexed variable? 2016-06-10T20:31:22.920

7 How to decode Log.Data in Go 2017-10-17T08:33:11.507

7 What is the capacity of the logsBloom? 2018-08-08T14:51:30.157

6 Getting event history takes a really long time or doesn't work at all 2016-10-23T05:01:50.577

6 How can I read log/events that have been triggered in the past? 2016-11-07T18:31:46.463

6 Proving the Existence of Logs to the Blockchain 2017-05-12T21:41:04.577

5 How can I use "eth_sendTransaction" to invoke a contract and get logs? 2016-06-03T09:47:49.963

5 Paging through log of events 2017-02-14T22:42:45.027

5 Filtering logs for entries greater than a specific value 2017-03-20T19:40:31.913

4 How can I check the current state of a token I made? 2016-02-19T02:34:14.987

4 geth throwing header invalid error all the time 2016-08-11T16:54:37.440

4 Logging errors in the fallback function 2016-08-19T10:52:56.970

4 How do I filter an event by the hash of the transaction that generated the event? 2017-05-16T17:31:31.410

4 What exactly is included in the bloom filters? 2017-06-05T16:46:34.503

4 How to decode event log info from contract? 2017-11-22T10:03:48.820

4 Are logs a reliable place to store data long-term? 2017-12-10T14:50:16.927

4 how to interpret event data ethereum 2018-05-25T08:26:11.093

4 Different outputs on event log subscription 2018-08-09T19:48:57.870

3 Why are log entries stored as both tuples and bloom filter in the Transaction Receipts Trie 2016-06-10T20:12:26.690

3 Retrieving tx.origin and msg.sender from blockchain data 2016-06-14T08:22:13.383

3 What is 'the last add pending transaction' in web3 filter? 2016-08-09T06:15:59.790

3 Why does having multiple functions with events prevent proper execution? 2017-01-10T05:08:31.903

3 Error openning the Ethereum wallet win64 0-8-8 on Windows 10 2017-01-12T18:05:56.380

3 ERC20 Transfer Event error or intended? 2017-01-18T11:49:48.307

3 How to get notified of a state change? 2017-02-16T21:05:47.447

3 How to access non-indexed event arguments from Go types.Log? 2017-09-25T14:45:02.533

3 Is there a way to get the logs for all transactions in a block? 2018-01-23T19:26:14.823

3 Are event logs still accessible after selfdestruct? 2018-03-08T20:09:00.530

3 How to parse through the logsBloom of a block or transaction using solidity 2018-03-28T06:40:09.007

2 Logging in ethereum private blockchain 2016-11-29T20:30:59.937

2 Couldn't connect to node (Windows, Ethereum Wallet 0.8.8) 2017-01-06T13:55:12.557

2 Logs of Token couldn't be received 2017-02-28T07:04:22.467

2 How to access the event log by knowing the contract address (golang)? 2017-07-02T18:06:47.077

2 How to get all historic changes of a state variable in a smart contract? 2017-10-22T16:37:37.773

2 Query events for a topic's max value 2017-12-17T16:40:10.387

2 Log index change during chain reorganization 2018-01-25T08:18:43.100

2 convert padded topics address to valid address string 2018-03-13T02:31:54.843

2 How to use logx in Solidity? 2018-04-14T10:09:53.290

2 What does "Topics" mean in "Event log"? 2018-05-24T12:45:25.037

2 Can ethereum logs be present while transaction is being mined, then disappear later? 2018-08-29T20:04:13.943

2 Bloom Filters - is the blockchain filtered block by block? 2018-10-11T21:25:47.447

2 Emit event while require statement fails 2018-11-16T20:15:28.323

1 How can I log an event with indexed fields in Remix? 2016-07-28T18:35:24.690

1 where are the parity log files in daemon mode 2017-01-13T05:36:31.840

1 Web3.js Filter Events 2017-06-02T16:47:57.010

1 How reliable are Ethereum logs? 2017-06-07T08:30:21.953

1 Find topic[0], topic[1], topic[2] 2017-09-18T13:20:39.427

1 How do you trust and verify very old logs? 2017-10-09T17:35:09.030

1 Get root data of smart contract 2017-12-16T06:20:14.063

1 Event unique identifier 2018-04-02T09:09:35.293

1 Can you explain some fields in geth logs "Imported new state entries"? 2018-04-13T05:05:45.920

1 eth_getLogs only returns logs for last transaction 2018-04-13T15:00:49.270

1 Emit event in view function or 2018-04-19T20:10:22.537

1 Only one topics args for event logs visible in the transaction receipt, instead of three expected 2018-05-03T05:59:56.813

1 How to get "event logs" similar to "remix"? 2018-05-06T18:43:25.263

1 Web3.js getPastLogs() fromBlock error 2018-05-23T15:17:05.957

1 Filtering blocks on basis of transaction logs in web3j 2018-07-22T09:24:25.010

1 Decoding Contract Log's "Data" field With eth-abi Throws Error: "Padding bytes were not empty: b'0x0000000000'" 2018-08-11T05:02:40.900

1 How to unsubscribe logs / events? 2018-08-12T07:40:52.933

1 What does the logger's address mean in Ethereum yellow paper? 2018-08-27T12:22:07.757

1 Why do are the 'type' & 'removed' fields in receipt logs different between Ganache and Geth? 2018-08-27T20:04:03.740

1 How do I decode the transaction's log with Web3.py? 2018-09-17T13:39:00.610

1 How to maintain history of changes in mapping? 2018-09-24T13:24:31.363

1 How to setup 'topics' for function getPastLogs ()? 2018-11-01T11:23:17.950

1 Read args object from particular block transaction in truffle console. 2018-11-07T15:32:19.503

1 Truffle test, logs do not include an emitted event 2018-11-07T16:01:11.097

0 Can a transaction that only sends Ether (no contract interactions) generate logs? 2017-02-01T23:05:55.440

0 On Solidity, calling event from modifier seems to fail 2017-06-21T15:30:26.167

0 Using events and logs to get function returned value with a simple example 2017-09-24T17:50:04.510

0 Is it possible to know which Events a given transaction triggered? 2017-12-27T23:26:19.457

0 Indexed event parameter only returns 1st character in address 2017-12-29T05:12:39.817

0 How to get only latest log from my event? 2018-03-07T07:49:14.710

0 Get the output value 2018-03-19T08:27:25.600

0 What information is available if you set up a node? 2018-04-10T10:39:38.123

0 Does getPastLogs require arvhived parity node? 2018-04-13T03:45:17.330

0 Can't find a way to log when revert()'ing in remix 2018-04-16T11:52:47.830

0 Truffle Test Sell Event Assertion Error 2018-04-25T05:55:31.113

0 How to see Logs of exceptions? 2018-04-26T11:12:18.610

0 Transaction receipt logs has logs from another transaction 2018-05-01T22:16:50.823

0 How to listen to events generated by an existing contract in web3 1.x.x? 2018-05-02T18:38:32.627

0 A common error at time of using web3 options 2018-05-06T20:13:19.557