Linked Questions

25
votes
5answers
14k views

web3: How do I get past events of myContract.myEvent?

I use the following JS code to get notified of Solidity events and it works well for incoming new events: myContract.myEvent().watch((error, result) => { if (error) console.log('Error in ...
4
votes
6answers
2k views

Is there any software apart from Geth and Mist that offers the Javascript console? I want to use the console but I don't want to do all that syncing

Is there any software apart from Geth and Mist that offers the Javascript console? I want to use the console but I don't want to do all that syncing. Parity does not have a console as far as I know ...
13
votes
2answers
1k views

How to get values returned by non constant transaction functions?

As per my understanding when I invoke a constant function without a transaction in a contract and if the function returns some result I am able to get it in EthereumJ or Go-Ethereum, But when a ...
6
votes
2answers
4k views

watching all the events of a contract (geth): 'cannot find event for log undefined: undefined'

I am trying to watch all events of a contract with many events. The following code is supposed to do just that: var events = myContract.allEvents(); events.watch(function(error, event){ if (...
4
votes
2answers
2k views

How can I view The DAO proposals including the current voting status?

The EtherScan.io website provides a page for The DAO proposals. This page does not provide the current voting status. How can I view The DAO proposals including the current voting status?
5
votes
3answers
751 views

How can I read log/events that have been triggered in the past?

I have a smart contract with an event. event NewContractCreated(address _callerAddress, address _newContractAddress); I know how to actively listen for new events: var newContractEvent = ...
7
votes
1answer
532 views

How can I list The DAO proposals and vote from the command line?

Are there any command line tools to vote on The DAO proposals? I would like to: List the open proposals Check whether I have already voted on these proposals Check my voting history Vote on the ...
2
votes
2answers
2k views

Retrieve data from smart contract using sendTransaction

Lets take a very basic smart contract that has one function in which you send a number and it will return the square. It has another function that returns a fixed string. contract MyContract { uint ...
4
votes
0answers
939 views

What is the easiest way to view transaction history if a custom token?

What do you think it's the easiest way to view history of transaction for a custom token ? Like A sent X to be B on XX/XX/XXXX. Especially for people who don't know about Ethereum. A tool like ...
2
votes
1answer
502 views

How to get specific event log in contract?

I can obtain all event logs. My code is: var contractInstance = contract.at("0x123456...789"); var transferEvents = contractInstance.allEvents({fromBlock:0, toBlock:'latest'}); and the output is: { ...
3
votes
1answer
433 views

Is it possible to use events to implement server-like functionality?

In the documentation and suggested links and this question, it is mentioned that events are bound to methods and fire when a method is called (via a transaction). There is an example of a contract: ...
2
votes
1answer
273 views

Event log fetch issue

I have an event as below: event orderResult(string status, uint32 indexed orderId); Calling the event as below: orderResult(status, orderId); Using web3.js to get event data on callback as below (...
4
votes
0answers
411 views

Event and/or watch does not work

I have a contract for a simple bidding scenario as below: pragma solidity ^0.4.9; /* Contract accepting biddings during 30 minutes */ contract SimpleBidding { address contractOwnersAccount; ...
1
vote
0answers
430 views

Need help understanding Events

Here's an example from solidity docs: [SOLIDITY] contract ClientReceipt { event Deposit( address indexed _from, bytes32 indexed _id, uint _value ); function ...
5
votes
1answer
257 views

Cannot catch every event (logs) from contract - catch a couple of random events instead

My contract has a transaction which fires an event. I was able to catch every event when I was sending transactions manually. But now I'm sending 100 transactions in cycle and get only 2..5 events. ...

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