How to deploy Ethereum Alarm Clock contract on a private ethereum network?

Question

Ethereum Alarm Clock:

Schedule Contract Function Calls An ethereum contract that facilitates scheduling function calls for a specified block in the future. Function calls can be scheduled to be executed against any contract Scheduling can be done by contracts or ethereum account holders. Fully contained within the ethereum network.

[Q] How could I use Ethereum Alarm Clock (mainly Scheduler.sol contract) on a private ethereum network? Manually I have tried to compile contracts/* libraries/* files that located inside source code using Solidity Browser, but I face with following errors that I was not able to fix.

On CallLib.sol file

Untitled:474:25: Error: Fallback function cannot return values.
    function () returns (bool) {
                        ^----^
Untitled:394:16: Error: Explicit type conversion not allowed.
        return State(CallLib.state(call));
               ^------------------------^

On SchedulerLib.Sol:

Untitled:191:20: Error: Member "value" not found or not visible after argument-dependent lookup in function (address,uint256,uint8,address,bytes4,bytes memory,uint256,uint256,uint16,uint256,uint256) returns (contract FutureBlockCall) - did you forget the "payable" modifier?
        var call = (new FutureBlockCall).value(callConfig.endowment)(
                   ^-------------------------^

Thank you for your valuable time and help.

Answer 1

The version you linked (0.7.0) was released in the 31st of January, 2016. At that time, the latest Solidity release was 0.2.1 (30th of January, 2016).

If you switch your compiler version to that Solidity release on the Remix IDE, the contract will compile just fine. You can find a working ETHFiddle snippet here.

Keep in mind that the Ethereum Alarm Clock contract is useless in private networks as it relies on external parties (humans) to be rewarded in Ether to actually actuate the alarm.

Answer 2

It got easier to deploy EAC on any network, including local network.

Solution

In existing or new NPM project run:

npm i --save @ethereum-alarm-clock/lib

Then when you have running network, run:

npx eac-deploy-contracts

This is using new @ethereum-alarm-clock/lib.

Resources

If you would like to see full tutorial, please see:

Text tutorial: https://github.com/ethereum-alarm-clock/ethereum-alarm-clock/wiki/Integration-using-EAC-JavaScript-library

Video tutorial: https://youtu.be/DY0QYDQG4lw