API Specification

Connex.Thor
Get Genesis Block Info
Returns Thor.Block​
console.log(connex.thor.genesis)
​
>{
    "beneficiary": "0x0000000000000000000000000000000000000000",
    "gasLimit": 10000000,
    "gasUsed": 0,
    "id": "0x000000000b2bce3c70bc649a02749e8687721b09ed2e15997f466536b20bb127",
    "number": 0,
    "parentID": "0xffffffff00000000000000000000000000000000000000000000000000000000",
    "receiptsRoot": "0x45b0cfc220ceec5b7c1c62c4d4193d38e4eba48e8815729ce75f9c0ab0e4c1c0",
    "signer": "0x0000000000000000000000000000000000000000",
    "size": 170,
    "stateRoot": "0x4ec3af0acbad1ae467ad569337d2fe8576fe303928d35b8cdd91de47e9ac84bb",
    "timestamp": 1530014400,
    "totalScore": 0,
    "transactions": [],
    "txsRoot": "0x45b0cfc220ceec5b7c1c62c4d4193d38e4eba48e8815729ce75f9c0ab0e4c1c0"
}
Get Blockchain Status
Returns Thor.Status​
console.log(connex.thor.status)
​
>{
    "head": {
        "id": "0x00d801f2b19ece57b722f5a45ee4d0569201e81d40c3efccbf911613be98c05f",
        "number": 14156274,
        "timestamp": 1671594090,
        "parentID": "0x00d801f12541216d63e6e631ab4f2702b11463e649a33120e5a70ff101042e31",
        "txsFeatures": 1,
        "gasLimit": 30000000
    },
    "progress": 1,
    "finalized": "0x00d7ffdc678fb95d20f9484d9e45966a0db49a2d83222344e005963f3ed76faa"
}
Create a Ticker
Ticker is a concept that describes chain increment, when there is a new block added to the chain, ticker will be triggered. This API will create a ticker which has a function that creates a Promise that will resolve when a new block is truly added, please be advised that it never rejects.
Returns Thor.Ticker
next - (): Promise<Thor.Status['head']>: Call next will create a promise that resolves with the summary of head block when there is a new block added
const ticker = connex.thor.ticker()
ticker.next().then((head)=>{
    console.log(head)
})
​
// After a few seconds
> {
    "id": "0x00379f79ce016975dab2aa6ee21669b6ad4f4aa3fbb1ef1dfb151c52e13a8437",
    "number": 3645305,
    "parentID": "0x00379f781a0035250669e6f5e5170b8cb384decbbb6a83917f823d920de5eed1",
    "timestamp": 1566874740,
    "txsFeatures": 1,
    "gasLimit": 16000000
}
Account Visitor
Account visitor is a bunch of APIs to get account details and interact with account methods.
Create an Account Visitor
const acc = connex.thor.account('0x7567d83b7b8d80addcb281a71d54fc7b3364ffed')
Parameters
address - string: Account to visit
Returns AccountVisitor
address - string(readonly): The address of account to be visited
get - (): Promise<Thor.Account>: Get the account detail
getCode - (): Promise<Thor.Account>: Get the account code
getStorage - (key: string): Promise<Thor.Account>: Get the account storage
method - (abi: object): Method: Create a method object, to perform contract call, or build transaction clause
event - (abi: object): EventVisitor: Create an event visitor
Get Account Detail
Returns Promise<Thor.Account>​
const acc = connex.thor.account('0x7567d83b7b8d80addcb281a71d54fc7b3364ffed')
acc.get().then(accInfo=>{
    console.log(accInfo)
})
​
>{
    "balance": "0xe95ea52e8e07eddd24e",
    "energy": "0x920d91d3ff3bb7f1d527",
    "hasCode": false
}
Get Account Code
Returns Promise<Thor.Code>
code - string: Contract code of an account
const acc = connex.thor.account('0x0000000000000000000000000000456E65726779')
acc.getCode().then(code=>{
    console.log(code)
})
​
>{
    "code": "0x6080604052600436106100af576000357c010000000000000000000000000000000000..."
}
Get Account Storage
Parameters
key - string: The key to accessing in account storage
Returns Promise<Thor.Storage>
value - string: The value to the key in account storage
const acc = connex.thor.account('0x0000000000000000000000000000456E65726779')
acc.getStorage('0x0000000000000000000000000000000000000000000000000000000000000001').then(storage=>{
    console.log(storage)
})
​
>{
    "value": "0x7107c9b15a7254dd92173d5421359b33bf40ea4ef0fa278ceaf1d320659d5c7b..."
}
Contract Method
Given the ABI of a contract, a Thor.Method object can be created to simulate a contract all without altering the contract state as well as pack a method with arguments to a clause that is ready to be signed.
const nameABI = {"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"}
​
const acc = connex.thor.account('0x0000000000000000000000000000456E65726779')
const method = acc.method(nameABI)
Parameters
abi - object: ABI definition of a contract method
Returns Thor.Method
value - (val: string|number):this: Set value for call and as Clause
caller - (addr: string):this: Set caller for call
gas - (gas: string):this: Set maximum gas allowed for call
gasPrice - (gp: string):this: Set gas price for call in wei
gasPayer - (addr: string):this: Set gas payer for call
call: Simulate calling the method to obtain the output without altering the blockchain state
asClause: Pack arguments and value into a clause
transact: Pack arguments and value into an Vendor.TxSigningService for committing to the blockchain
Simulate a Contract Call
Method.call(...arguments: Array<any>): Promise<VM.Output&Decoded>
Parameters
...arguments - Array<any>: Arguments defined in method ABI
Returns Promise<VM.Output&Decoded>​
Decoded will be present only the ABI definition is provided
// Simulate get name from a VIP-180 compatible contract
// Solidity: function name() public pure returns(string)
const nameABI = {"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"}
const nameMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(nameABI)
nameMethod.call().then(output=>{
    console.log(output)
})
>{
    "data": "0x0000000000000000000000...",
    "events": [],
    "transfers": [],
    "gasUsed": 605,
    "reverted": false,
    "vmError": "",
    "decoded": {
        "0": "VeThor"
    }
}
​
// Simulate the VIP-180 transfer 1 wei token from Alex to Bob
// Solidity: function transfer(address _to, uint256 _amount) public returns(bool success)
const transferABI = {"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}
const transferMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(transferABI)
// Set the args for simulate call
transferMethod
    .caller('0x7567d83b7b8d80addcb281a71d54fc7b3364ffed') // Bob's address
    .gas(100000) // Max gas for simulate 
    .gasPrice('1000000000000000') // 1 VeThor can buy 1000 gas
​
// Alice's address and amount in wei
transferMethod.call('0xd3ae78222beadb038203be21ed5ce7c9b1bff602', 1).then(output=>{
    console.log(output)
})
>{
    "data": "0x0000000000000000000000000000000000000000000000000000000000000001",
    "events": [
        {
            "address": "0x0000000000000000000000000000456e65726779",
            "topics": [
                "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
                "0x0000000000000000000000007567d83b7b8d80addcb281a71d54fc7b3364ffed",
                "0x000000000000000000000000d3ae78222beadb038203be21ed5ce7c9b1bff602"
            ],
            "data": "0x0000000000000000000000000000000000000000000000000000000000000001"
        }
    ],
    "transfers": [],
    "gasUsed": 13326,
    "reverted": false,
    "vmError": "",
    "decoded": {
        "0": true,
        "success": true
    }
}
​
// Simulate EnergyStation convertForEnergy call
// Solidity:  function convertForEnergy(uint256 _minReturn) public payable
const convertForEnergyABI = {"constant":false,"inputs":[{"name":"_minReturn","type":"uint256"}],"name":"convertForEnergy","outputs":[{"name":"","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"function"}
const convertForEnergyMethod = connex.thor.account('0xd015d91b42bed5feaf242082b11b83b431abbf4f').method(convertForEnergyABI)
// Set value, leave other arguments unset
convertForEnergyMethod
    .value('1000000000000000000') // 1e18 wei
​
// minReturn in wei(1e16 wei)
convertForEnergyMethod.call('10000000000000000').then(output=>{
    console.log(output)
})
> ...
Caching a Contract Call
Quote
There are only two hard things in Computer Science: cache invalidation and naming things.
-- Phil Karlton
Caching method calls would help developers to speed up their applications. Addresses are ideal to be the conditions of the cache invalidation because they are building states in smart contracts. We recommend developers use this caching mechanism carefully since it is primitive.
Method.cache(hints: Array<string>): this
Parameters
hints - Array<string>: Turn on caching for the method and set the condition of cache invalidation.
After turning cache on, connex will check everything on the blockchain that can be treated as address(included but not limited to):
Block.Signer
Block.Beneficiary
Transaction.Signer
Receipt.GasPayer
Receipt.Output.Event.Address
Receipt.Output.Event.ContractAddress
Receipt.Output.Event.Topics
Receipt.Output.Transfer.Sender
Receipt.Output.Transfer.Recipient
Once any address in the set is observed by connex, the cache would be expired.
// Caching for method name, return value should never expire
// Solidity: function name() public pure returns(string)
const nameABI = {"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"}
const nameMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(nameABI)
nameMethod.cache([])  // Set this method to never expire
nameMethod.call().then(output=>{
    console.log(output)
}) // This will hit cache forever
​
// Caching for method balanceOf, for my addresses
// Solidity function balanceOf(address _owner) public view returns(uint256 balance) 
const balanceOfABI = {"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}
const balanceOfMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(balanceOfABI)
// Set this method to expire when my account being seen
balanceOfMethod.cache(['0x7567d83b7b8d80addcb281a71d54fc7b3364ffed'])
// Get balance of my account, we will get cached result on most blocks
// Event Transfer(_from = '0x7567d83b7b8d80addcb281a71d54fc7b3364ffed', ....) would make cache expired
balanceOfMethod.call('0x7567d83b7b8d80addcb281a71d54fc7b3364ffed').then(output=>{
    console.log(output)
})
​
// Caching a DEX market's vet balance
// Solidity: function vetVirtualBalance() public returns(bool uint104)
const vetBalanceABI = {"constant":true,"inputs":[],"name":"vetVirtualBalance","outputs":[{"name":"","type":"uint104"}],"payable":false,"stateMutability":"view","type":"function"}
const vetBalanceMethod = connex.thor.account('0xD015D91B42BEd5FeaF242082b11B83B431abBf4f').method(vetBalanceABI)
// Set this method to expire when the contract address being seen
// Why? Because I am the developer of EnergyStation and I know the detail of the contract
// vetVirtualBalance changes when there is any conversion executed and every conversion would trigger an event
// and every event's output will contain contractAddress, so I set the contractAddress to the condition
vetBalanceMethod.cache(['0xD015D91B42BEd5FeaF242082b11B83B431abBf4f'])
vetBalanceMethod.call('0xD015D91B42BEd5FeaF242082b11B83B431abBf4f').then(output=>{
    console.log(output)
})// This will get the vetVirtualBalance efficiently
Commit to blockchain
Method.transact(...arguments: Array<any>): Vendor.TxSigningService
Parameters
...arguments - Array<any>: Arguments defined in method ABI
Returns Vendor.TxSigningService​
// Perform a VIP-180 transfer 1 wei token from Alex to Bob
// Solidity: function transfer(address _to, uint256 _amount) public returns(bool success)
const transferABI = {"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}
const transferMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(transferABI)
​
transferMethod
    // Bob's address and amount in wei
    .transact('0xd3ae78222beadb038203be21ed5ce7c9b1bff602', 1)
    .comment('transfer 1 wei to Alice')
    .request()
    .then(result=>{
        console.log(result)
    })
>{
    "signer": "0x7567d83b7b8d80addcb281a71d54fc7b3364ffed",
    "txId": "0x4e9a7eec33ef6cfff8ff5589211a94070a0284df17c2ead6267f1913169bd340"
}
​
// Converts 1 VET to VeThor
// Solidity: function convertForEnergy(uint256 _minReturn) public payable
const convertForEnergyABI = {"constant":false,"inputs":[{"name":"_minReturn","type":"uint256"}],"name":"convertForEnergy","outputs":[{"name":"","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"function"}
const convertForEnergyMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(convertForEnergyABI)
​
convertForEnergyMethod
    .value('1000000000000000000') // Set value to 1e18
    .transact('10000000000000000') // minReturn in wei(1e16 wei)
    .comment('Convert 1 VET to VeThor')
    .request()
    .then(result=>{
        console.log(result)
    })
>{
    "signer": "0x7567d83b7b8d80addcb281a71d54fc7b3364ffed",
    "txId": "0x4e9a7eec33ef6cfff8ff5589211a94070a0284df17c2ead6267f1913169bd340"
}
Create a Clause for Signing
Method.asClause(...arguments: Array<any>): VM.Clause
Parameters
...arguments - Array<any>: Arguments defined in method ABI
Returns VM.Clause​
// Convert 1 VeThor to VET, which needs to perform two action approve VeThor and convertForVET
const dex = '0xD015D91B42BEd5FeaF242082b11B83B431abBf4f'
const approveABI = {"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}
const approveMethod = connex.thor.account('0x0000000000000000000000000000456E65726779').method(approveABI)
const convertForVetABI= {"constant":false,"inputs":[{"name":"_sellAmount","type":"uint256"},{"name":"_minReturn","type":"uint256"}],"name":"convertForVET","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"}
const convertForVetMethod = connex.thor.account(dex).method(convertForVetABI)
​
// approve dex to move my 1e18 wei VeThor
const c1 = approveMethod.asClause(dex, '1000000000000000000')
// convert 1e18 wei VeThor to VET, minimum return at 1e16 wei VET
const c2 = convertForVetMethod.asClause('1000000000000000000', '10000000000000000')
​
connex.vendor
    .sign('tx', [c1, c2])
    .comment('convert 1 VeThor to VET')
    .request()
    .then(result=>{
        console.log(result)
    })
​
>{
    "to": "0x0000000000000000000000000000456E65726779",
    "value": "0",
    "data": "0xa9059cb......"
}
Contract Event
Given the ABI of a contract, we can create a Thor.Event object that will be able to filter contracts events with arguments or pack the arguments to criteria for assembling combined filters.
const transferEventABI = {"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"}
const acc = connex.thor.account('0x0000000000000000000000000000456E65726779')
​
const event = acc.event(transferEventABI)
Parameters
abi - object: ABI definition of contract event
Returns Thor.Event
asCriteria: Pack indexed arguments into criteria for future use, see Thor.Filter​
filter: Create an event filter, only accept indexed arguments, see Thor.Filter​
Pack into Criteria
Event.asCriteria(indexed: object): Thor.Filter.Criteria
Parameters
indexed - object: Indexed arguments defined in event ABI that needs to be filtered, the items in the object will be combined with AND operator: e.g. {"ConA": "A", "ConB": "B"} is 'ConA=A AND ConB=B'
Returns Thor.Filter.Criteria
// Solidity: event Transfer(address indexed _from, address indexed _to, uint256 _value)
const transferEventABI = {"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"}
const transferEvent = connex.thor.account('0x0000000000000000000000000000456E65726779').event(transferEventABI)
​
// Pack into criteria filters events that the '_to' is Bob's address
const criteria = transferEvent.asCriteria({
    _to: '0xd3ae78222beadb038203be21ed5ce7c9b1bff602'
})
console.log(criteria)
>{
    "address": "0x0000000000000000000000000000456E65726779",
    "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
    "topic2": "0x000000000000000000000000d3ae78222beadb038203be21ed5ce7c9b1bff602"
}
// Next you can combine different criteria together and put them into filter
Create a filter
Event.filter(indexed: object): Thor.Filter
Parameters
indexed - Array<object>: Array of filter conditions of indexed arguments, the items in the array will be combined by OR operator to filter the events: e.g. [{"ConA": "A"}, {"ConB": "B", "ConC": "C"}] is 'ConA=A OR (ConB=B AND ConC=C)'
Returns Thor.Filter​
// Solidity: event Transfer(address indexed _from, address indexed _to, uint256 _value)
const transferEventABI = {"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"}
const transferEvent = connex.thor.account('0x0000000000000000000000000000456E65726779').event(transferEventABI)
​
// Filter the events whether '_to' is Bob's address or '_from' is Alice's address
const filter = transferEvent.filter([{
    _to: '0xd3ae78222beadb038203be21ed5ce7c9b1bff602'
},{
    _from: '0x733b7269443c70de16bbf9b0615307884bcc5636'
}])
// Next you can call the methods of Thor.Filter
Execute the filter
Filter.apply(offset:number, limit: number): Promise<Array<Thor.Filter.Result.Log&Decoded>>
Returns Promise<Array<Thor.Filter.Result.Log&Decoded>>​
Decoded will be present only the ABI definition is provided
// Solidity: event Transfer(address indexed _from, address indexed _to, uint256 _value)
const transferEventABI = {"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"}
const transferEvent = connex.thor.account('0x0000000000000000000000000000456E65726779').event(transferEventABI)
​
// Create a filter from eventABI
const filter = transferEvent.filter([{
    _to: '0xd3ae78222beadb038203be21ed5ce7c9b1bff602'
}])
​
// Apply the filter, get the first one
filter.apply(0, 1).then(logs=>{
    console.log(logs)
})
>[
    {
        "address": "0x0000000000000000000000000000456e65726779",
        "topics": [
            "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
            "0x0000000000000000000000007567d83b7b8d80addcb281a71d54fc7b3364ffed",
            "0x00000000000000000000000000f34f4462c0f6a6f5e76fb1b6d63f05a32ed2c6"
        ],
        "data": "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000",
        "meta": {
            "blockID": "0x0000813fbe48421dfdc9400f1f4e1d67ce34256538afd1c2149c4047d72c4175",
            "blockNumber": 33087,
            "blockTimestamp": 1530345270,
            "txID": "0x29b0af3ffb8eff4cc48a24ce9a800aaf4d0e92b72dbcf17ce01b14fd01af1290",
            "txOrigin": "0x7567d83b7b8d80addcb281a71d54fc7b3364ffed",
            "clauseIndex": 0
        },
        "decoded": {
            "0": "0x7567D83b7b8d80ADdCb281A71d54Fc7B3364ffed",
            "1": "0x00F34f4462c0f6a6f5E76Fb1b6D63F05A32eD2C6",
            "2": "1000000000000000000",
            "_from": "0x7567D83b7b8d80ADdCb281A71d54Fc7B3364ffed",
            "_to": "0x00F34f4462c0f6a6f5E76Fb1b6D63F05A32eD2C6",
            "_value": "1000000000000000000"
        }
    }
]
Block Visitor
const blk = connex.thor.block(0)
Parameters
revision - number|string|undefined: Block number or ID to visit or leave it unset the function will get the latest block ID as the revision (As long as the revision is set, it can't be changed again)
Returns Thor.BlockVisitor
revision - number|string(readonly): Block number or ID to be visited.
Get Block Detail
Returns Promise<Thor.Block>​
const blk=connex.thor.block(0)
​
blk.get().then(block=>{
    console.log(block)
})
>{
    "number": 0,
    "id": "0x000000000b2bce3c70bc649a02749e8687721b09ed2e15997f466536b20bb127",
    "size": 170,
    "parentID": "0xffffffff00000000000000000000000000000000000000000000000000000000",
    "timestamp": 1530014400,
    "gasLimit": 10000000,
    "beneficiary": "0x0000000000000000000000000000000000000000",
    "gasUsed": 0,
    "totalScore": 0,
    "txsRoot": "0x45b0cfc220ceec5b7c1c62c4d4193d38e4eba48e8815729ce75f9c0ab0e4c1c0",
    "stateRoot": "0x4ec3af0acbad1ae467ad569337d2fe8576fe303928d35b8cdd91de47e9ac84bb",
    "receiptsRoot": "0x45b0cfc220ceec5b7c1c62c4d4193d38e4eba48e8815729ce75f9c0ab0e4c1c0",
    "signer": "0x0000000000000000000000000000000000000000",
    "isTrunk": true,
    "transactions": []
}
Transaction Visitor
const tx = connex.thor.transaction('0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851')
Parameters
id - string: Transaction ID to be visited (As long as the revision is set, it can't be changed again)
Returns Thor.TransactionVisitor
id - number|string(readonly): Block number or ID to be visited
get - (): Promise<Thor.Transaction>: Get the transaction detail
getReceipt - (): Promise<Thor.Receipt>: Get the transaction receipt
Get Transaction Detail
Returns Thor.Transaction​
const transaction=connex.thor.transaction('0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851')
​
transaction.get().then(tx=>{
    console.log(tx)
})
>{
    "id": "0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851",
    "chainTag": 39,
    "blockRef": "0x00003abac0432454",
    "expiration": 720,
    "clauses": [
        {
            "to": "0x7567d83b7b8d80addcb281a71d54fc7b3364ffed",
            "value": "0x152d02c7e14af6800000",
            "data": "0x"
        }
    ],
    "gasPriceCoef": 128,
    "gas": 21000,
    "origin": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
    "nonce": "0x12256df6fb",
    "dependsOn": null,
    "size": 128,
    "meta": {
        "blockID": "0x00003abbf8435573e0c50fed42647160eabbe140a87efbe0ffab8ef895b7686e",
        "blockNumber": 15035,
        "blockTimestamp": 1530164750
    }
}
Get Transaction Receipt
const tx = connex.thor.transaction('0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851')
const receipt = await tx.getReceipt()
Returns Thor.Receipt​
const transaction=connex.thor.transaction('0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851')
​
transaction.getReceipt().then(tx=>{
    console.log(tx)
})
>{
    "gasUsed": 21000,
    "gasPayer": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d",
    "paid": "0x1b5b8c4e33f51f5e8",
    "reward": "0x835107ddc632302c",
    "reverted": false,
    "meta": {
        "blockID": "0x00003abbf8435573e0c50fed42647160eabbe140a87efbe0ffab8ef895b7686e",
        "blockNumber": 15035,
        "blockTimestamp": 1530164750,
        "txID": "0x9daa5b584a98976dfca3d70348b44ba5332f966e187ba84510efb810a0f9f851",
        "txOrigin": "0xe59d475abe695c7f67a8a2321f33a856b0b4c71d"
    },
    "outputs": [
        {
            "contractAddress": null,
            "events": [],
            "transfers": []
        }
    ]
}
Filter
Filter event and transfer logs on the blockchain. Filter often works with Connex.Thor.Account, either creates a filter from an event or packs criteria and then assembles several criteria and sets to a filter. But also there is a way of creating a filter and assembling criteria as per your need then apply it.
const f = connex.thor.filter(kind: 'event'|'transfer', criteria: Array<Thor.Filter.Criteria>)
Parameters
kind - 'event'|'transfer': Kind of filter
criteria - Array<Thor.Filter.Criteria>: Criteria set for the filter, either array of Event.Criteria or an array of Transfer.Criteria, items in the criteria array will be combined by OR operator to filter the events: e.g. [{"ConA": "A"}, {"ConB": "B", "ConC": "C"}] is 'ConA=A OR (ConB=B AND ConC=C)'
Thor.Filter.Criteria:
Filters support two different types of log: event and transfer so there are two types of Thor.Filter.Criteria.
Thor.Filter.Event.Criteria:
address - string(optional): The address to get logs from
topic0 - string(optional): Topic0 to match
topic1 - string(optional): Topic1 to match
topic2 - string(optional): Topic2 to match
topic3 - string(optional): Topic3 to match
topic4 - string(optional): Topic4 to match
Thor.Filter.Transfer.Criteria:
txOrigin - string(optional): Signer address of tx
sender - string(optional): VET sender address
recipient - string(optional): VET recipient address
Returns Thor.Filter
order - (order: 'asc'|'desc'): this: Set the order for filter
range - (range: Thor.Filter.Range): this: Set the range for the filter
apply - (offset: number, limit: number): Promise<Thor.Filter.Result>: Apply the filter and get the result
​Thor.Filter.Result​
connex.thor.filter('event',[
    // Matches VIP-180 Transfer from '0xd3ae78222beadb038203be21ed5ce7c9b1bff602'
    {
        "address": "0x0000000000000000000000000000456E65726779",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "topic1": "0x000000000000000000000000d3ae78222beadb038203be21ed5ce7c9b1bff602"
    },
    // Matches VIP-180 Transfer to '0x7567d83b7b8d80addcb281a71d54fc7b3364ffed'
    {
        "address": "0x0000000000000000000000000000456E65726779",
        "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
        "topic2": "0x0000000000000000000000007567d83b7b8d80addcb281a71d54fc7b3364ffed"
    }
])
// Next you can set other options or executes the filter
Set filter range
Parameters
Thor.Filter.Range:
unit - 'block'|'time': Range unit, can be filtered by block number or timestamp in second
from - Number: Start point in unit
to - Number: Stop point in unit
Returns this
const filter =  connex.thor.filter('transfer')
​
// Set the filter range as block 0 to block 100
filter.range({
    unit: 'block',
    from: 0,
    to: 100
})
// Next you can set other options or executes the filter
Execute the filter
Parameters
offset - Number: Start cursor in the result
limit - Number: Constrain the number of result returned
Returns Promise<Array<Thor.Filter.Result>>​
// Solidity: event Transfer(address indexed _from, address indexed _to, uint256 _value)
const transferEventABI = {"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"}
const transferEvent = connex.thor.account('0x0000000000000000000000000000456E65726779').event(transferEventABI)
​
// Create a filter from eventABI
const filter = transferEvent.filter([{
    _to: '0xd3ae78222beadb038203be21ed5ce7c9b1bff602'
}])
// Set filter options
filter