meVu

A network of smart-contracts to facilitate a system of peer-to-peer betting called Mevu.

This code is still in active development and is not yet intended for a main net release.

Contracts

Please see the contracts/ directory.

Develop

• Contracts are written in Solidity and tested using Truffle and ganache-cli and the Oraclize ethereum-bridge.

Dependencies

https://github.com/OpenZeppelin/zeppelin-solidity

https://github.com/oraclize/ethereum-api

If testing :

https://github.com/trufflesuite/ganache-cli

https://github.com/oraclize/ethereum-bridge

Test

truffle test

Code

Admin Functions

setCallbackGasLimit

function setCallbackGasLimit (uint newLimit) external onlyAuth

Sets the gas limit for the callbcak transaction initiated by the oraclizeAPI.

setCallbackInterval

function setCallbackInterval(uint newInterval) external onlyAuth

Sets the interval (seconds) between the callback loops which update events.

setMinOracleStake

function setMinOracleStake (uint newMin) external onlyAuth

Sets the minimum stake required for a user to oraclize an event.

setMinOracleNum

function setMinOracleNum (bytes32 eventId, uint min) external onlyAuth

Sets the minimum number of Oracles required to satisfactorily determine the winner of a particular event.

setMinWagerAmount

function setMinWagerAmount(uint256 minWager) external onlyAuth

Sets the minimum amount of ETH a player is allowed to make a bet with.

setMaxOracleInterval

function setMaxOracleInterval (uint max) external onlyAuth

Set the maximum amount of time (seconds) allowable between oraclizations for a user to be eligible to win the monthly lottery.

setOracleRepPenalty

function setOracleRepPenalty (int penalty) external onlyAuth

Set the reputation penalty incurred by an Oracle who has voted against consensus.

setOracleRepReward

function setOracleRepReward (int reward) external onlyAuth

Set the reputation reward awarded to an Oracle who has voted with consensus.

setPlayerAgreeRepReward

function setPlayerAgreeRepReward (int reward) external onlyAuth

Set the reputation reward awarded to a player who has successfully settled their bet without requiring Oracles.

setPlayerDisagreeRepPenalty

function setPlayerDisagreeRepPenalty (int penalty) external onlyAuth

Set the reputation penalty incurred by a player who disputed an event outcome and was found to be aganist Oracle consensus.

getCallbackGasLimit

function getCallbackGasLimit() external view returns (uint)

Returns the gas limit for oraclize callbacks.

getCallbackInterval

function getCallbackInterval() external view returns (uint)

Returns the interval (seconds) between oraclize callback loops.

getMaxOracleInterval

function getMaxOracleInterval() external view returns (uint)

Returns the max alllowable interval (seconds) between oraclizations for an oracle to be eligible to win the monthly lottery.

getMinOracleNum

function getMinOracleNum (bytes32 eventId) external view returns (uint)

Returns minimum number of Oracles required to settle a specific event.

getMinOracleStake

function getMinOracleStake () external view returns (uint)

Returns minimum stake required to register as an oracle for an event.

getMinWagerAmount

function getMinWagerAmount() external view returns (uint)

Returns minimum amount of ETH required to bet with.

getOracleRepPenalty

function getOracleRepPenalty () external view returns (int)

Returns rep penalty incurred by Oracle for reporting against consensus.

getOracleRepReward

function getOracleRepReward () external view returns (int)

Returns rep reward awarded to an Oracle for reporting with consensus.

getPlayerAgreeRepReward

function getPlayerAgreeRepReward () external view returns (int)

Returns rep reward awarded to a player for settling a bet without requiring Oracles.

getPlayerDisagreeRepPenalty

function getPlayerDisagreeRepPenalty () external view returns (int)

Returns rep penalty incurred by a player who diputed an outcome and was found to be against Oracle consensus.

AuthorityGranter Functions

grantAuthority

function grantAuthority (address nowAuthorized) external onlyOwner

Grants an address authority by adding it to the isAuthorized mapping.

removeAuthority

function removeAuthority (address unauthorized) external onlyOwner

Takes an address' authority by removing it from the isAuthorized mapping.

CancelController Functions

setMevuContract

function setMevuContract (address thisAddr) external onlyOwner

Sets the address which the latest Mevu contract is deployed to.

setCustomWagersContract

function setCustomWagersContract (address thisAddr) external onlyOwner

Sets the address which the latest CustomWagers contract is deployed to.

setWagersContract

function setWagersContract (address thisAddr) external onlyOwner

Sets the address which the latest Wagers contract is deployed to.

setRewardsContract

function setRewardsContract (address thisAddr) external onlyOwner

Sets the address which the latest Rewards contract is deployed to.

abortWagerCustom

function abortWagerCustom(bytes32 wagerId) internal

Settles a custom wager and refunds the players.

abortWagerStandard

function abortWagerStandard(bytes32 wagerId) internal

Settles a standard wager and refunds the players.

cancelWagerStandard

function cancelWagerStandard (bytes32 wagerId, bool withdraw) 
    onlyBettorStandard(wagerId)
    notPaused
    notTakenStandard(wagerId)           
    external

Cancels a standard wager before a player has taken it.

cancelWagerCustom

function cancelWagerCustom (bytes32 wagerId, bool withdraw) 
    onlyBettorCustom(wagerId)
    notPaused      
    notTakenCustom(wagerId)          
    external

Cancels a custom wager before a player has taken it.

requestCancelCustom

function requestCancelCustom (bytes32 wagerId)
    onlyBettorCustom(wagerId)        
    mustBeTakenCustom(wagerId)
    notSettledCustom(wagerId)
    external

Requests the cancellation of a matched custom wager.

requestCancelStandard

function requestCancelStandard (bytes32 wagerId)
    onlyBettorStandard(wagerId)
    mustBeTakenStandard(wagerId)       
    notSettledStandard(wagerId)
    external

Requests the cancellation of a matched standard wager.

confirmCancelStandard

function confirmCancelStandard (bytes32 wagerId)
    notSettledStandard(wagerId)
    external

Confirms the cancellation of a matched standard wager where both players have requested cacellation.

confirmCancelCustom

function confirmCancelCustom (bytes32 wagerId)
    notSettledCustom(wagerId)
    external

Confirms the cancellation of a matched custom wager where both players have requested cancellation.

CustomWagers Functions

makeWager

function makeWager (
        bytes32 wagerId,
        uint endTime,
        uint reportinEndTime,          
        uint origValue,
        uint winningValue,        
        uint makerChoice,
        uint takerChoice,
        uint odds,
        uint makerWinnerVote,
        uint takerWinnerVote,
        address maker,
        address judge
        )
            external
            onlyAuth

Creates a wager in the wagers mapping.

setCancelled

function setCancelled (bytes32 wagerId) external onlyAuth

Sets a wager as cancelled.

setSettled

function setSettled (bytes32 wagerId) external onlyAuth

Sets a wager as settled.

setMakerWinVote

function setMakerWinVote (bytes32 id, uint winnerVote) external onlyAuth

After an event is over set the bet maker's vote for the event winner.

setTakerWinVote

function setTakerWinVote (bytes32 id, uint winnerVote) external onlyAuth

After an event is over set the bet taker's vote for the event winner.

setRefund

function setRefund (address bettor, bytes32 wagerId) external onlyAuth

Sets the boolean indicating that a player has recieved a refund for a particular bet to true.

setMakerCancelRequest

function setMakerCancelRequest (bytes32 id) external onlyAuth

Sets the boolean indicating that a bet maker has requested a cancellation for a particular bet to true.

setTakerCancelRequest

function setTakerCancelRequest (bytes32 id) external onlyAuth

Sets the boolean indicating that a bet taker has requested a cancellation for a particular bet to true.

setTaker

function setTaker (bytes32 wagerId, address taker) external onlyAuth

Sets the taker for a bet.

setWinner

function setWinner (bytes32 id, address winner) external onlyAuth

Sets the winner for a bet.

setJudgesVote

function setJudgesVote (bytes32 id, uint vote) external onlyAuth

Sets the judges vote for a bet.

setLoser

function setLoser (bytes32 id, address loser) external onlyAuth

Sets the loser for a bet.

setWinningValue

function setWinningValue (bytes32 wagerId, uint value) external onlyAuth

Sets the amount that the bet winner will recieve before fees.

getCancelled

function getCancelled (bytes32 wagerId) external view returns (bool)

Returns the bool indicating if the given bet has been cancelled.

getEndTime

function getEndTime (bytes32 wagerId) external view returns (uint)

Returns the end timestamp of the given bet.

getReportingEndTime

function getReportingEndTime (bytes32 wagerId) external view returns (uint)

Returns the end timestamp of the reporting period for a given bet.

getLocked

function getLocked (bytes32 id) external view returns (bool)

Returns true if the given bet has been taken.

getSettled

function getSettled (bytes32 id) external view returns (bool)

Returns true if the given bet has been settled (paid out or cancelled).

getMaker

function getMaker(bytes32 wagerId) external view returns (address)

Returns the bets maker.

getTaker

function getTaker(bytes32 wagerId) external view returns (address)

Returns the bets taker.

getMakerChoice

function getMakerChoice (bytes32 wagerId) external view returns (uint)

Returns the team number the maker bet on.

getTakerChoice

function getTakerChoice (bytes32 wagerId) external view returns (uint)

Returns the team number the taker bet on.

getMakerCancelRequest

function getMakerCancelRequest (bytes32 wagerId) external view returns (bool)

Returns true if the maker has requested a bet cancellation.

getTakerCancelRequest

function getTakerCancelRequest (bytes32 wagerId) external view returns (bool)

Returns true if the taker has requested a bet cancellation.

getMakerWinVote

function getMakerWinVote (bytes32 wagerId) external view returns (uint)

Returns the maker's vote for the event winner regarding a given bet.

getTakerWinVote

function getTakerWinVote (bytes32 wagerId) external view returns (uint)

Returns the taker's vote for the event winner regarding a given bet.

getRefund

function getRefund (address bettor, bytes32 wagerId) external view returns (bool)

Returns true if the given bettor has already recieved a refund for the given bet.

getOdds

function getOdds (bytes32 wagerId) external view returns (uint)

Returns the odds for a given bet.

getOrigValue

function getOrigValue (bytes32 wagerId) external view returns (uint)

Returns the amount sent by the maker for a given bet.

getWinningValue

function getWinningValue (bytes32 wagerId) external view returns (uint)

Returns the amount sent by the maker and taker for a given bet.

getWinner

function getWinner (bytes32 wagerId) external view returns (address)

Returns the winner of a given bet.

getLoser

function getLoser (bytes32 wagerId) external view returns (address)

Returns the loser of a given bet.

getJudge

function getJudge (bytes32 wagerId) external view returns (address)

Returns the judge of a given bet.

getJudgesVote

function getJudgesVote (bytes32 wagerId) external view returns (uint)

Returns the vote cast by a judge of a given bet.

CustomWagersController Functions

setAdminContract

function setAdminContract (address thisAddr) external onlyOwner

Sets the address which the latest Admin contract is deployed to.

setMevuContract

function setMevuContract (address thisAddr) external onlyOwner

Sets the address which the latest Mevu contract is deployed to.

setCustomWagersContract

function setCustomWagersContract (address thisAddr) external onlyOwner

Sets the address which the latest CustomWagers contract is deployed to.

setRewardsContract

function setRewardsContract (address thisAddr) external onlyOwner

Sets the address which the latest Rewards contract is deployed to.

makeWager

function makeWager (
        bytes32 id,
        uint endTime,
        uint reportingEndTime,
        uint makerChoice,
        uint value,
        uint odds,
        address judge
        )
        notMade(id)    
        checkBalance(value)
        notPaused
        external
        payable

Used by a player to make a new bet.

takeWager

function takeWager (
        bytes32 id,
        address judge      
    )
        notTaken(id)
        notOver(id)
        external
        payable

Used by a player to take a bet.

submitVote

function submitVote (      
        bytes32 wagerId,
        uint winnerVote
    ) 
        onlyBettor(wagerId) 
        mustBeEnded(wagerId)
        notSettled(wagerId)
        notPaused
        external

Used by a player to submit vote for winner after event has ended.

submitJudgeVote

function submitJudgeVote (bytes32 wagerId, uint vote)
        mustBeEnded(wagerId)
        notSettled(wagerId)
        validVote(vote)
        external 

Used by a player assigned as a judge for a custom wager to submit vote for winner after event has ended.

settle

function settle(bytes32 wagerId) internal

Settles bet after both bettors have voted.

judgeSettle

function judgeSettle (
        bytes32 wagerId,
        address judge,
        uint judgesVote,
        address maker,
        address taker,
        uint makerWinVote,
        uint origValue,
        uint payoutValue
        )
        internal 

Settles bet after the judge has voted.

tieJudged

function tieJudged(address judge, address maker, address taker, uint origValue, uint payoutValue ) internal

Facilitates payout if the judge had to rule a tie.

checkJudge

function checkJudge (bytes32 wagerId, address maker, address taker, uint makerWinVote, uint takerWinVote, uint origValue, uint payoutValue) internal

Checks to see if there has been a judge appointed, if so, checks to see if they've voted yet. If there is no judge the wager is aborted.

finalizeAbandonedBet

function finalizeAbandonedBet (bytes32 wagerId) 
    onlyBettor(wagerId)
    reportingOver(wagerId)
    external

Allows a bettor to reclaim their eth if the person they are betting with never reports.

payout

function payout(bytes32 wagerId, address maker, address taker, uint payoutValue, bool agreed) internal

Pays out a settled wager.

withdraw

function withdraw(
        uint eth    
    )
        notPaused   
        external

Allows a user to withdraw eth that may still be in the mevu contract due to an aborted wager.

abortWager

function abortWager(bytes32 wagerId) internal

Sets a wager as settled and unlocks the eth so users can withdraw.

CustomWagersController Events

JudgeNeeded

event JudgeNeeded (address judge, bytes32 wagerId)

WagerMade

event WagerMade(bytes32 id)

WagerTaken

event WagerTaken(bytes32 id)

WagerSettled

event WagerSettled(bytes32 wagerId)

Events Functions

setAdminContract

function setAdminContract (address thisAddr) external onlyOwner

Sets the address which the latest Admin contract is deployed to.

setMevuContract

function setMevuContract (address thisAddr) external onlyOwner

Sets the address which the latest Mevu contract is deployed to.

setOraclesContract

function setOraclesContract (address thisAddr) external onlyOwner

Sets the address which the latest Oracles contract is deployed to.

makeStandardEvent

function makeStandardEvent(
        bytes32 id,
        bytes32 name,
        uint startTime,
        uint duration,
        bytes32 teamOne,
        bytes32 teamTwo
    )
        external
        onlyOwner

Creates a supported event for users to bet on and oraclize.

addResolvedWager

function addResolvedWager (bytes32 eventId, uint value) external onlyAuth

Adds the value of a resolved wagger to the running total value of resolved wagers based on a specific event.

determineEventStage

function determineEventStage (bytes32 thisEventId, uint lastIndex) external onlyAuth

If an event is recently completed, it is designated as voteReady, if it was already voteReady then it is now locked.

decideWinner

function decideWinner (bytes32 eventId) internal

Determines the winner of a completed event based on oracle votes.

removeEventFromActive

function removeEventFromActive (bytes32 eventId) internal

Removes an event which is over and settled from the active events array.

removeWager

function removeWager (bytes32 eventId, uint value) external onlyAuth

Removes wager data from the event struct.

addWager

function addWager(bytes32 eventId, uint value) external onlyAuth

Adds wager data to the event struct.

setWinner

function setWinner (bytes32 eventId, uint winner) public onlyAuth

Sets event winner.

setLocked

function setLocked (bytes32 eventId) public onlyAuth

Sets event as locked.

getFinished

function getFinished (bytes32 eventId) external view returns (bool)

Returns true if the current block time is later than the event end time.

getActiveEventId

function getActiveEventId (uint i) external view returns (bytes32)

Returns the bytes32 id of the wager in the active events array at the given index.

getActiveEventsLength

function getActiveEventsLength () external view returns (uint)

Returns the length of the active events array.

getStandardEventCount

function getStandardEventCount () external view returns (uint)

Returns the total number of events ever.

getTotalAmountBet

function getTotalAmountBet (bytes32 eventId) external view returns (uint)

Returns the total number of events ever.

getTotalAmountResolvedWithoutOracles

function getTotalAmountResolvedWithoutOracles (bytes32 eventId) external view returns (uint)

Returns the amount of wei that bettors on this event who have resolved without oracles have bet.

getCancelled

function getCancelled(bytes32 id) external view returns (bool)

Returns true if the given event has been cancelled.

getStart

function getStart (bytes32 id) public view returns (uint)

Returns the start time (timestamp in seconds) of given event.

getDuration

function getDuration (bytes32 id) public view returns (uint)

Returns the duration (seconds) of given event.

getEndTime

function getEndTime (bytes32 id) public view returns (uint)

Returns the end time (timestamp in seconds) of given event.

getLocked

function getLocked(bytes32 id) public view returns (bool)

Returns true if event is over and settled or cancelled.

getWinner

function getWinner (bytes32 id) external view returns (uint)

Returns the winner of the event. 1 = team one, 2 = team two, 3 = tie, 4 = no clear winnner

getVoteReady

function getVoteReady (bytes32 id) public view returns (bool)

Returns true if the event is currently in the voting/reporting period (i.e. finished but not locked).

makeVoteReady

function makeVoteReady (bytes32 id) internal

Sets an event as vote ready to initiate the voting period.

Events Events

EventVoteReady

event EventVoteReady(bytes32 eventId)

Mevu Functions

setAdminContract

function setAdminContract (address thisAddr) external onlyOwner

Sets the address which the latest Admin contract is deployed to.

setEventsContract

function setEventsContract (address thisAddr) external onlyOwner

Sets the address which the latest Events contract is deployed to.

setMvuTokenContract

function setEventsContract (address thisAddr) external onlyOwner

Sets the address which the latest Events contract is deployed to.

setOraclesContract

function setOraclesContract (address thisAddr) external onlyOwner

Sets the address which the MvuToken contract is deployed to.

setRewardsContract

function setRewardsContract (address thisAddr) external onlyOwner

Sets the address which the latest Rewards contract is deployed to.

setWagersContract

function setWagersContract (address thisAddr) external onlyOwner

Sets the address which the latest Wagers contract is deployed to.

setMevuWallet

function setMevuWallet (address newAddress) external onlyOwner

Sets the address which the mevu multi-sig wallet is deployed to.

abandonContract

function abandonContract() external onlyPaused

Allows user to abandon contract and withdraw funds if platform has been compromised and admin has paused it.

__callback

function __callback (bytes32 myid, string result)  notPaused

Is called by Oraclize API.

randomNum

function randomNum(uint max) private

Calls the oraclize contract for a random number generated through the Wolfram Alpha engine.

checkLottery

function checkLottery() internal

Checks to see if a month (in seconds) has passed since the last lottery paid out, pays out if so.

payoutLottery

function payoutLottery(address potentialWinner) internal

Pays out the monthly lottery balance to a random oracle.

playerRefund

function playerRefund (bytes32 wagerId) external  onlyBettor(wagerId)

Players should call this when an event has been cancelled after thay have made a wager to recieve a refund.

allowedToWin

function allowedToWin (address potentialWinner) internal view returns (bool)

Checks if a potential lottery winner has oraclized an event recently enough to be eligible to win.

pauseContract

function pauseContract () external onlyOwner

Pauses the contract, preventing betting and only allowing emergency withdrawals.

restartContract

function restartContract(uint secondsFromNow) external onlyOwner payable

Restarts a paused contract by reinitiating the oraclize recursion.

mevuWithdraw

function mevuWithdraw (uint amount) external onlyOwner

Allows mevu team to withdraw earnings to multi-sig wallet.

addMevuBalance

function addMevuBalance (uint amount) external onlyAuth

Adds to the mevu balance.

addEventToIterator

function addEventToIterator () external onlyAuth

Adds one to the iterator index.

addLotteryBalance

function addLotteryBalance (uint amount) external onlyAuth

Adds to the lottery balance.

addToPlayerFunds

function addToPlayerFunds (uint amount) external onlyAuth

Adds to the player funds balance.

subFromPlayerFunds

function subFromPlayerFunds (uint amount) external onlyAuth

Subs from the player funds balance.

transferEth

function transferEth (address recipient, uint amount) external onlyAuth

Transfers eth from the mevu contract.

getContractPaused

function getContractPaused() external view returns (bool)

Returns true if contract is paused.

getOracleFee

function getOracleFee () external view returns (uint256)

Returns the oracle service fee.

transferTokensToMevu

function transferTokensToMevu (address oracle, uint mvuStake) internal

Transfers MVU tokens to the mevu contract.

transferTokensFromMevu

function transferTokensFromMevu (address oracle, uint mvuStake) external onlyAuth

Transfers MVU tokens from the mevu contract.

addMonth

function addMonth () internal

Resets the newMonth variable to a month in the future.

getNewMonth

function getNewMonth () internal view returns (uint256)

Resets the newMonth variable, this is when the lottery will payout.

uintToBytes

function uintToBytes(uint v) internal view returns (bytes32 ret)

Returns the bytes32 of a given uint.

bytes32ToString

function bytes32ToString (bytes32 data) internal view returns (string)

Returns the string of a given bytes32.

Mevu Events

NewOraclizeQuery

event NewOraclizeQuery (string description)

Oracles Functions

addOracle

function addOracle (address oracle, bytes32 eventId, uint mvuStake, uint winnerVote) external onlyAuth

Adds an oracle and their vote info to the oracleStructs and eventStructs mappings.

removeOracle

function removeOracle (address oracle, bytes32 eventId) external onlyAuth

Removes an oracle from an event

setEventsContract

function setEventsContract (address thisAddress) external onlyOwner

setCurrentWinner

function setCurrentWinner (bytes32 eventId) 

Calculates votes and sets winner of the event

addToOracleList

function addToOracleList (address oracle) external onlyAuth 

Adds an oracle to oracle list

setPaid

function setPaid (address oracle, bytes32 eventId) external onlyAuth 

Sets oracle as paid for the event

setLastEventOraclized

function setLastEventOraclized (address oracle, bytes32 eventId) external onlyAuth

Sets current event as the last event an oracle has orcalized

setRefunded

function setRefunded (address oracle, bytes32 eventId) external onlyAuth

Sets oracle as refunded for the event

setRegistered

function setRegistered (address oracle, bytes32 eventId) external onlyAuth 

Registers oracles for a event

getCurrentWinner

function getCurrentWinner (bytes32 eventId) external view returns (uint) 

Returns current winner of a given event

getRegistered

function getRegistered (address oracle, bytes32 eventId) external view returns (bool)

Returns if oracle is registered for a given event

getWinnerVote

function getWinnerVote(bytes32 eventId, address oracle) external view returns (uint) 

Returns the oracles vote on a given event

getPaid

function getPaid (bytes32 eventId, address oracle) external view returns (bool)

Returns oracle paid status

getRefunded

function getRefunded (bytes32 eventId, address oracle) external view returns (bool)

Returns oracle refund status

getVotesForOne

function getVotesForOne (bytes32 eventId) external view returns (uint) 

Returns votes for outcome or team number one from a given event ID

getVotesForTwo

function getVotesForTwo (bytes32 eventId) external view returns (uint) 

Returns votes for outcome or team number two from a given event ID

getVotesForThree

function getVotesForThree (bytes32 eventId) external view returns (uint)

Returns votes for outcome or team number three from a given event ID

getStakeForOne

function getStakeForOne (bytes32 eventId) external view returns (uint)

Returns total MVU staked by oracles for outcome or team number one from a given event ID

getStakeForTwo

function getStakeForTwo (bytes32 eventId) external view returns (uint)

Returns total MVU staked by oracles for outcome or team number two from a given event ID

getStakeForThree

function getStakeForThree (bytes32 eventId) external view returns (uint)

Returns total MVU staked by oracles for outcome or team number three from a given event ID

getMvuStake

function getMvuStake (bytes32 eventId, address oracle) external view returns (uint)

Returns MVU staked in an event for an oracle

getEventOraclesLength

function getEventOraclesLength (bytes32 eventId) external view returns (uint)

returns number of oracles in a given event

getOracleVotesNum

function getOracleVotesNum (bytes32 eventId) external view returns (uint) 

Returns the number of votes in a given event ID

getTotalOracleStake

function getTotalOracleStake (bytes32 eventId) external view returns (uint)

Returns total amount staked by oracles in a given event ID

getThreshold

function getThreshold (bytes32 eventId) external view returns (bool)

getOracleListLength

function getOracleListLength() external view returns (uint)

Returns number of oracles from a given event ID

getOracleListAt

function getOracleListAt (uint index) external view returns (address)

Returns list of oracles from a given event ID

getLastEventOraclized

function getLastEventOraclized (address oracle) external view returns (bytes32)

Returns last event an oracle has orcalized

checkOracleStatus

function checkOracleStatus (address oracle, bytes32 eventId) external view returns (bool)

Returns the status of an oracle in a given event

License

MIT License