Contract

Create Contract

Basically, creating contract is sending a transaction (transaction type = 1) by specifying contract's binary code and parameters. This process has the following steps.

1. Call RPC method contract_createContractToAddress to generate a new contract address;
2. Encode constructor's input parameters according to ABI. This can be done by calling method abi.encodeParameters provided in vite.js. If the constructor has no input parameter, skip this step;
3. Generate transaction data. The data content consists of a prefix of 14 byte length (10 byte consensus group id + 1 byte contract type + 1 byte response latency + 1 byte random degree + 1 byte quota multiplier), compiled code and encoded constructor parameters (generated in Step 2).
4. Build account block, then call RPC method ledger_sendRawTransaction to create contract. Here parameter toAddress is the contract address generated in Step 1. data is transaction data created in Step 3. Choose blockType = 1, indicating creating contract transaction. Set amount and tokenId as the amount of the token that will be transferred to the contract upon creation. fee is always 10 VITE, which is the cost of creating contract on Vite network.

Tips

Above steps are implemented in method builtinTxBlock.createContract in vite.js

Parameter description:

• Delegated consensus group id: The response blocks of contract chain are produced by the supernodes of delegated consensus group that the contract has registered for. One available consensus group at the time being is public consensus group, which has id 00000000000000000002.
• Contract type: Using 1 to indicate Solidity++ contract.
• Response latency: The number of snapshot blocks by which request sent to the contract has been confirmed before responding to the specific transaction. The value ranges from 0 to 75. 0 means there is no waiting period and respond block will be produced immediately. If either timestamp, snapshot block height, or random number is used in the contract, the value must be bigger than zero. Generally speaking, larger response latency means slower contract response and response transaction will consume more quota.
• Random degree: The number of snapshot blocks having random seed by which request sent to this contract is confirmed before responding to the specific transaction. Value range is 0-75. 0 indicates that there is no waiting for the request transaction to be included in a snapshot block that contains random number. If any random number related instruction is used in the contract, the value must be above 0. In general, the larger the value, the more secure the random number. This parameter must be no greater than response latency.
• Quota multiplier: This parameter defines x times of quota is consumed for requested transaction when the contract is called. Quota charged on contract response transaction is not affected. The value ranges from 10 to 100, which means 1-10x quota should be consumed. For example, a value of 15 means that the requested transaction to the contract is charged 1.5x quota.

Call Contract

Calling a smart contract is to send a special transaction to smart contract's address, specifying method name and passed-in parameters.

1. Encode method name and passed-in parameter as ABI interface defines. This step can be done by calling abi.encodeFunctionCall method in vite.js
2. Build transaction block and call RPC method ledger_sendRawTransaction to send the transaction to contract. Herein toAddress is the contract address and data is transaction data created in Step 1. blockType is set to 2. amount and tokenId stand for the amount of token that are transferred to the contract. fee is 0, indicating no transaction fee.

Tips

Above steps are implemented in method builtinTxBlock.callContract in vite.js

Read States Off-chain

Contract's states can be accessed off-chain through getter methods. The ABI definition of getter method and off-chain code are generated when the contract is compiled.

1. Encode off-chain method name and passed-in parameter as ABI interface defines. This step can be done by calling abi.encodeFunctionCall method in vite.js
2. Call RPC method contract_callOffChainMethod to query contract states

Call Built-in Contract

Calling built-in contract is to send a special transaction to built-in contract's address, specifying calling method name and passed-in parameters. Vite has provided 3 built-in smart contracts: Quota, Token Issuance and Consensus.

1. Encode method name and passed-in parameter as ABI interface defines. This step can be done by calling abi.encodeFunctionCall method in vite.js
2. Build transaction block and call RPC method ledger_sendRawTransaction to send the transaction to built-in contract.

Tips

Methods of built-in contracts are provided in builtinTxBlock in vite.js

Quota Contract

Contract Address

vite_0000000000000000000000000000000000000003f6af7459b9

ABI

Copy [ // Stake for quota (Deprecated) {"type":"function","name":"Stake", "inputs":[{"name":"beneficiary","type":"address"}]}, // Stake for quota {"type":"function","name":"StakeForQuota", "inputs":[{"name":"beneficiary","type":"address"}]}, // Cancel staking (Deprecated) {"type":"function","name":"CancelStake","inputs":[{"name":"beneficiary","type":"address"},{"name":"amount","type":"uint256"}]}, // Cancel staking {"type":"function","name":"CancelQuotaStaking","inputs":[{"name":"id","type":"bytes32"}]}, // Stake for quota with callback {"type":"function","name":"StakeForQuotaWithCallback", "inputs":[{"name":"beneficiary","type":"address"},{"name":"stakeHeight","type":"uint64"}]}, // Cancel quota staking with callback {"type":"function","name":"CancelQuotaStakingWithCallback","inputs":[{"name":"id","type":"bytes32"}]} ]

Callback methods:

Copy [ // Callback function for stake for quota {"type":"function","name":"StakeForQuotaWithCallbackCallback", "inputs":[{"name":"id","type":"bytes32"},{"name":"success","type":"bool"}]}, // Callback function for cancel quota staking {"type":"function","name":"CancelQuotaStakingWithCallbackCallback","inputs":[{"name":"id","type":"bytes32"},{"name":"success","type":"bool"}]} ]

Stake (Deprecated)

Stake for quota. The minimum staking amount is 134 VITE. Staked tokens can be retrieved after 259,200 snapshot blocks (about 3 days). The locking period will renew if new staking request is submitted for the same beneficiary.

• Parameters:
  • beneficiary: string address Address of staking beneficiary

StakeForQuota

Stake for quota. The minimum staking amount is 134 VITE. Staked tokens can be retrieved after 259,200 snapshot blocks (about 3 days). Multiple staking records will be generated if staking for the same beneficiary repeatedly. The hash of staking request transaction is used as staking id, which can be used to retrieve staked tokens when locking period expires.

• Parameters:
  • beneficiary: string address Address of staking beneficiary

CancelStake (Deprecated)

Cancel staking and retrieve staked tokens after the lock period expires. Retrieving a portion of staked tokens is permitted.

• Parameters:
  • beneficiary: string address Address of staking beneficiary
  • amount: string bigint Amount to retrieve. Cannot be less than 134 VITE. The remaining staking amount cannot be less than 134 VITE.

DelegateStake

Stake for quota via delegation. The minimum staking amount is 134 VITE. Caller of this ABI method should be another contract which stakes on behalf of its users.

• Parameters:
  • stakeAddress: string address Address of original staking account
  • beneficiary: string address Address of staking beneficiary
  • bid: uint8 Business id. Staking records from the same original staking address and for the same beneficiary will be categorized into different groups by business id. The locking period of each group will be dependent on the last staking record among the individual business group.
  • stakeHeight: string uint64 Locking period in terms of number of snapshot blocks. No less than 259,200.

DelegateStakeCallback

Callback method for delegated staking. Basically, it is the caller contract's responsibility to implement the callback method to do refund(or other logic) upon staking failure.

• Parameters:
  • stakeAddress: string address Address of original staking account
  • beneficiary: string address Address of staking beneficiary
  • bid: uint8 Business id. Staking records from the same original staking address and for the same beneficiary will be categorized into different groups by business id. The locking period of each group will be dependent on the last staking record among the individual business group.
  • stakeHeight: string uint64 Locking period in terms of number of snapshot blocks. No less than 259,200
  • success: bool If false, caller contract should return the relevant VITE tokens to the user

CancelDelegateStake

Cancel an existing delegated staking and retrieves staked tokens after the lock period expires. However, retrieving a part of staked tokens is also permitted. In that case, the original delegated staking is still valid.

• Parameters:
  • stakeAddress: string address Address of original staking account
  • beneficiary: string address Address of staking beneficiary
  • amount: string bigint Amount to retrieve. Cannot be less than 134 VITE. The remaining staking amount cannot be less than 134 VITE.
  • bid: uint8 Business id. Staking records from the same original staking address and for the same beneficiary will be categorized into different groups by business id. The locking period of each group will be dependent on the last staking record among the individual business group.

CancelDelegateStakeCallback

Callback method for cancelling delegated staking. Basically, it is the caller contract's responsibility to implement the callback method to do refund(or other logic) upon cancellation failure.

• Parameters:
  • stakeAddress: string address Address of original staking account
  • beneficiary: string address Address of staking beneficiary
  • amount: string bigint Amount to retrieve. Cannot be less than 134 VITE. The remaining staking amount cannot be less than 134 VITE.
  • bid: uint8 Business id. Staking records from the same original staking address and for the same beneficiary will be categorized into different groups by business id. The locking period of each group will be dependent on the last staking record among the individual business group.
  • success: bool If true, caller contract should return the relevant VITE tokens to the user

Consensus Contract

Contract Address

vite_0000000000000000000000000000000000000004d28108e76b

ABI

Copy [ // Register block producer {"type":"function","name":"RegisterSBP", "inputs":[{"name":"sbpName","type":"string"},{"name":"blockProducingAddress","type":"address"},{"name":"rewardWithdrawAddress","type":"address"}]}, // Update block producing address {"type":"function","name":"UpdateSBPBlockProducingAddress", "inputs":[{"name":"sbpName","type":"string"},{"name":"blockProducingAddress","type":"address"}]}, // Update reward withdrawal address {"type":"function","name":"UpdateSBPRewardWithdrawAddress", "inputs":[{"name":"sbpName","type":"string"},{"name":"rewardWithdrawAddress","type":"address"}]}, // Cancel block producer {"type":"function","name":"RevokeSBP","inputs":[{"name":"sbpName","type":"string"}]}, // Withdraw block producing reward {"type":"function","name":"WithdrawSBPReward","inputs":[{"name":"sbpName","type":"string"},{"name":"receiveAddress","type":"address"}]}, // Vote for block producer {"type":"function","name":"VoteForSBP", "inputs":[{"name":"sbpName","type":"string"}]}, // Cancel voting {"type":"function","name":"CancelSBPVoting","inputs":[]} ]

Register

Register a new block producer. This operation requires to stake 1m VITE for a locking period of 7,776,000 snapshot blocks (about 3 months).

• Parameters:
  • sbpName: string The unique name of the block producer. Cannot be modified after the registration.
  • blockProducingAddress: string address Block producing address. This is the address that signs the snapshot block. It's highly recommended to use a different address other than the registration address.
  • rewardWithdrawAddress: string address Reward withdrawal address.

Tips

Always have your node fully synced before registration.

UpdateBlockProducingAddress

Update the block producing address for an existing producer

• Parameters:
  • sbpName: string The unique name of the block producer
  • blockProducingAddress: string address New block producing address

UpdateRewardWithdrawAddress

Update reward withdrawal address for an existing producer

• Parameters:
  • sbpName: string The unique name of the block producer
  • rewardWithdrawAddress: string address New reward withdrawal address

Revoke

Cancel a block producer after the locking period has passed. A cancelled producer will stop producing snapshot blocks immediately.

• Parameters:
  • sbpName: string The unique name of the block producer

WithdrawReward

Withdraw block producing reward. The first 100 block producers in a cycle's last round can withdraw block producing rewards in 1 hour after the cycle is complete.

• Parameters:
  • sbpName: string The unique name of the block producer
  • receiveAddress: string address Address to receive block producing rewards

Vote

Vote for a block producer. The VITE balance in the account is taken as voting weight. An account can only vote for one SBP at a time.

• Parameters:
  • sbpName: string Distinct name of block producer

CancelVote

Cancel vote

• Parameters: None

Token Issuance Contract

Contract Address

vite_000000000000000000000000000000000000000595292d996d

ABI

Copy [ // Issue new token {"type":"function","name":"IssueToken","inputs":[{"name":"isReIssuable","type":"bool"},{"name":"tokenName","type":"string"},{"name":"tokenSymbol","type":"string"},{"name":"totalSupply","type":"uint256"},{"name":"decimals","type":"uint8"},{"name":"maxSupply","type":"uint256"},{"name":"isOwnerBurnOnly","type":"bool"}]}, // Re-issue. Mint additional tokens {"type":"function","name":"ReIssue","inputs":[{"name":"tokenId","type":"tokenId"},{"name":"amount","type":"uint256"},{"name":"receiveAddress","type":"address"}]}, // Burn {"type":"function","name":"Burn","inputs":[]}, // Transfer ownership of re-issuable token {"type":"function","name":"TransferOwnership","inputs":[{"name":"tokenId","type":"tokenId"},{"name":"newOwner","type":"address"}]}, // Change token type from re-issuable to non-reissuable {"type":"function","name":"DisableReIssue","inputs":[{"name":"tokenId","type":"tokenId"}]}, // Query token information {"type":"function","name":"GetTokenInformation","inputs":[{"name":"tokenId","type":"tokenId"}]}, // Token issuance event {"type":"event","name":"issue","inputs":[{"name":"tokenId","type":"tokenId","indexed":true}]}, // Token re-issuance event {"type":"event","name":"reIssue","inputs":[{"name":"tokenId","type":"tokenId","indexed":true}]}, // Burn event {"type":"event","name":"burn","inputs":[{"name":"tokenId","type":"tokenId","indexed":true},{"name":"burnAddress","type":"address"},{"name":"amount","type":"uint256"}]}, // Ownership transfer event {"type":"event","name":"transferOwnership","inputs":[{"name":"tokenId","type":"tokenId","indexed":true},{"name":"owner","type":"address"}]}, // Token type change event {"type":"event","name":"disableReIssue","inputs":[{"name":"tokenId","type":"tokenId","indexed":true}]} ]

Callback method:

Copy [ // Callback method for querying token information {"type":"function","name":"GetTokenInformationCallback","inputs":[{"name":"id","type":"bytes32"},{"name":"tokenId","type":"tokenId"},{"name":"exist","type":"bool"},{"name":"isReIssuable","type":"bool"},{"name":"tokenName","type":"string"},{"name":"tokenSymbol","type":"string"},{"name":"totalSupply","type":"uint256"},{"name":"decimals","type":"uint8"},{"name":"maxSupply","type":"uint256"},{"name":"isOwnerBurnOnly","type":"bool"},{"name":"index","type":"uint16"},{"name":"ownerAddress","type":"address"}]}, ]

IssueToken

Issue a new token at a cost of 1,000 VITE. The issuing account will become token's owner and receive an amount of tokens equivalent to initial total supply.

• Parameters:
  • isReIssuable: bool If true, newly additional tokens can be minted after initial issuance
  • tokenName: string Name of token in 1-40 characters, including uppercase/lowercase letters, spaces and underscores. Cannot have consecutive spaces or start/end with space
  • tokenSymbol: string Symbol of token in 1-10 characters, including uppercase/lowercase letters, spaces and underscores. Cannot use VITE, VCP or VX
  • totalSupply: string bigint Total supply. Having $totalSupply \leq 2^{256}-1$. For re-issuable token, this is initial total supply
  • decimals: uint8 Decimal places. Having $10^{decimals} \leq totalSupply$
  • maxSupply: string bigint Maximum supply. Mandatory for re-issuable token. Having $totalSupply \leq maxSupply \leq 2^{256}-1$. For non-reissuable token, fill in 0
  • isOwnerBurnOnly: bool If true, the token can only burned by owner. Mandatory for re-issuable token. For non-reissuable token, fill in false

ReIssue

Mint an amount of additional tokens after initial issuance. For token's owner only

• Parameters:
  • tokenId: string tokenId Token id
  • amount: string bigint Issuing amount. Token's total supply will increase accordingly but cannot exceed max supply
  • receiveAddress: string address Address to receive newly issued tokens

Burn

Burn an amount of tokens by sending to token issuance contract. For re-issuable token only

TransferOwnership

Transfer token ownership. For re-issuable token only

• Parameters:
  • tokenId: string tokenId Token id
  • newOwner: string address Address of new owner

DisableReIssue

Change re-issuable token to non-reissuable. Cannot change back once it is done

• Parameters:
  • tokenId: string tokenId Token id

GetTokenInformation

Query token info

• Parameters:
  • tokenId: string tokenId Token id

GetTokenInformationCallback

Callback method for querying token info

• Parameters:
  • tokenId: string tokenId Token id
  • exist: bool If true, the token exists
  • tokenSymbol: string Symbol of token
  • index: uint16 Distinct token index beginning from 0 to 999. For tokens having the same symbol, sequential indexes will be allocated according to issuance time
  • owner: string address Address of token's owner

contract_createContractAddress

Create a new contract address

• Parameters:

  • string address: Address of creator
  • string uint64: Current height of account chain
  • string hash: Hash of previous account block

• Returns:

  • string address New address

• Example:

contract_getContractInfo

Return contract information by address

• Parameters:

  • string address: Address of contract

• Returns:

  • ContractInfo
    • code: string base64 Code of contract
    • gid: string gid Associated consensus group id
    • responseLatency: uint8 Response latency
    • randomDegree: uint8 Random degree
    • quotaMultiplier: uint8 Quota multiplier

• Example:

contract_callOffChainMethod

Call contract's offchain method

• Parameters:

  • Params:
    • address:string address Address of contract
    • code:string base64 Binary code for offchain query. This is the value of "OffChain Binary" section generated when compiling the contract with --bin
    • data:string base64 Encoded passed-in parameters

• Returns:

  • string base64 Encoded return value. Use decode methods of vitejs to get decoded value

• Example:

contract_getContractStorage

Query contract's state

• Parameters:

  • string address Address of contract
  • string Hex key or prefix of hex key of contract state field

• Returns:

  • map<string,string> Map of key-value pairs in hex

• Example:

contract_getQuotaByAccount

Return quota balance by account

• Parameters:

  • string address: Address of account

• Returns:

  • QuotaInfo
    • currentQuota: string uint64 Current available quota
    • maxQuota: string uint64 Max quota, equivalent to UTPE
    • stakeAmount: string bigint Amount of staking

• Example:

contract_getStakeList

Return staking records by account, ordered by target unlocking height in descending order

• Parameters:

  • string address: Address of staking account
  • int: Page index, starting from 0
  • int: Page size

• Returns:

  • StakeListInfo
    • totalStakeAmount: string bigint The total staking amount of the account
    • totalStakeCount: int The total number of staking records
    • stakeList: Array<StakeInfo> Staking record list
      • stakeAddress: string address Address of staking account
      • stakeAmount: string bigint Amount of staking
      • expirationHeight: string uint64 Target unlocking height
      • beneficiary: string address Address of staking beneficiary
      • expirationTime: int64 Estimated target unlocking time
      • isDelegated: bool If true, this is a delegated staking record
      • delegateAddress: string address Address of delegate account. For non-delegated staking, 0 is filled
      • bid: uint8 Business id. For non-delegated staking, 0 is filled

• Example:

contract_getRequiredStakeAmount

Return the minimum required amount of staking in order to obtain the given quota

• Parameters:

  • string uint64: Quotas accumulated per second. For example, an amount of 21,000 quota are consumed to send a transaction with no comment, in this case, to satisfy the minimum 280 (21000/75) quota accumulation per second in an epoch, a staking amount of 134 VITE is required

• Returns:

  • string bigint: The minimum amount of staking

• Example:

contract_getDelegatedStakeInfo

Return delegated staking information

• Parameters:

  • Params
    • stakeAddress:string address Address of original staking account
    • delegateAddress:string address Address of delegate account
    • beneficiary:string address Address of staking beneficiary
    • bid: uint8 Business id. Staking records from the same original staking address and for the same beneficiary will be categorized into different groups by business id. The locking period of each group will be dependent on the last staking record among the individual business group.

• Returns:

  • StakeInfo
    • stakeAddress: string address Address of staking account
    • stakeAmount: string bigint Amount of staking
    • expirationHeight: string uint64 Target unlocking height
    • beneficiary: string address Address of staking beneficiary
    • expirationTime: int64 Estimated target unlocking time
    • isDelegated: bool If true, this is a delegated staking record
    • delegateAddress: string address Address of delegate account. For non-delegated staking, 0 is filled
    • bid: uint8 Business id. For non-delegated staking, 0 is filled

• Example:

contract_getSBPList

Return registered SBP list, including historical SBP nodes, ordered by target unlocking height in descending order

• Parameters:

  • string address: Address of registration account

• Returns:

  • Array<SBPInfo>
    • name: string Name of SBP
    • blockProducingAddress: string address Block producing address
    • stakeAddress: string address Address of registration account
    • stakeAmount: string bigint Amount of staking
    • expirationHeight: string uint64 Target unlocking height. Registered SBP node can be cancelled after the locking period expires.
    • expirationTime: int64 Estimated target unlocking time
    • revokeTime: int64 Time of cancellation. For non-cancelled SBP nodes, 0 is filled

• Example:

contract_getSBPRewardPendingWithdrawal

Return un-retrieved SBP rewards by SBP name

• Parameters:

  • string: Name of SBP

• Returns:

  • RewardInfo
    • totalReward: string bigint The total rewards that have not been retrieved
    • blockProducingReward: string bigint Un-retrieved block creation rewards
    • votingReward: string bigint Un-retrieved candidate additional rewards(voting rewards)
    • allRewardWithdrawed: bool If true, the SBP node has been cancelled and all rewards have been withdrawn

• Example:

contract_getSBPRewardByTimestamp

Return SBP rewards in 24h by timestamp. Rewards of all SBP nodes in the cycle that the given timestamp belongs will be returned.

• Parameters:

  • int64: Timestamp in seconds

• Returns:

  • RewardByDayInfo
    • rewardMap: map<string,RewardInfo>
      • totalReward: string bigint The total rewards that have not been retrieved
      • blockProducingReward: string bigint Un-retrieved block creation rewards
      • votingReward: string bigint Un-retrieved candidate additional rewards(voting rewards)
      • producedBlocks: string bigint Actual blocks produced
      • targetBlocks: string bigint Target blocks should be produced
    • startTime: int64 Cycle start time
    • endTime: int64 Cycle end time
    • cycle: string uint64 Index of cycle

• Example:

contract_getSBPRewardByCycle

Return SBP rewards of all SBP nodes by cycle

• Parameters:

  • string uint64: Index of cycle

• Returns:

  • RewardByDayInfo
    • rewardMap: map<string,RewardInfo>
      • totalReward: string bigint The total rewards that have not been retrieved
      • blockProducingReward: string bigint Un-retrieved block creation rewards
      • votingReward: string bigint Un-retrieved candidate additional rewards(voting rewards)
      • producedBlocks: string bigint Actual blocks produced
      • targetBlocks: string bigint Target blocks should be produced
    • startTime: int64 Cycle start time
    • endTime: int64 Cycle end time
    • cycle: string uint64 Index of cycle

• Example:

contract_getSBP

Return SBP node information

• Parameters:

  • string: Name of SBP

• Returns:

  • SBPInfo
    • name: string Name of SBP
    • blockProducingAddress: string address Block producing address
    • stakeAddress: string address Address of registration account
    • stakeAmount: string bigint Amount of staking
    • expirationHeight: string uint64 Target unlocking height. Registered SBP node can be cancelled after the locking period expires.
    • expirationTime: int64 Estimated target unlocking time
    • revokeTime: int64 Time of cancellation. For non-cancelled SBP nodes, 0 is filled

• Example:

contract_getSBPVoteList

Return current number of votes of all SBP nodes

• Parameters:

• Returns:

  • Array<SBPVoteInfo>
    • sbpName: string Name of SBP
    • blockProducingAddress: string address Block producing addresss
    • votes: string bigint Number of votes

• Example:

contract_getVotedSBP

Return voting information by account

• Parameters:

  • string address: Address of voting account

• Returns:

  • VoteInfo
    • blockProducerName: string Name of SBP
    • status: uint8 Status of registration. For cancelled SBP node, 2 is filled, otherwise 1 for valid SBPs
    • votes: string bigint Number of votes, equivalent to account balance

• Example:

contract_getSBPVoteDetailsByCycle

Return voting details of all SBP nodes by cycle

• Parameters:

  • string uint64: Index of cycle

• Returns:

  • Array<SBPVoteDetail>
    • blockProducerName: string Name of SBP
    • totalVotes: string bigint The total number of votes
    • blockProducingAddress: string address Block producing address
    • historyProducingAddresses: Array<string address> Historical block producing address list
    • addressVoteMap: map<string address, string bigint> Voting details

• Example:

contract_getTokenInfoList

Return a list of all tokens issued

• Parameters:

  • int: Page index, starting from 0
  • int: Page size

• Returns:

  • TokenListInfo
    • totalCount: int The total number of tokens
    • tokenInfoList: Array<TokenInfo>
      • tokenName: string Token name
      • tokenSymbol: string Token symbol
      • totalSupply: big.Int Total supply
      • decimals: uint8 Decimal places
      • owner: Address Token owner
      • isReIssuable: bool Whether the token can be re-issued
      • maxSupply: big.Int Maximum supply
      • isOwnerBurnOnly: bool Whether the token can be burned by the owner only
      • tokenId: TokenId Token ID
      • index: uint16 Token index between 0-999. For token having the same symbol, sequential indexes will be allocated according to when the token is issued.

• Example:

contract_getTokenInfoById

Return token information

• Parameters:

  • string tokenId: Token id

• Returns:

  • TokenInfo
    • tokenName: string Token name
    • tokenSymbol: string Token symbol
    • totalSupply: big.Int Total supply
    • decimals: uint8 Decimal places
    • owner: Address Token owner
    • isReIssuable: bool Whether the token can be re-issued
    • maxSupply: big.Int Maximum supply
    • isOwnerBurnOnly: bool Whether the token can be burned by the owner only
    • tokenId: TokenId Token ID
    • index: uint16 Token index between 0-999. For token having the same symbol, sequential indexes will be allocated according to when the token is issued.

• Example:

contract_getTokenInfoListByOwner

Return a list of tokens issued by the given owner

• Parameters:

  • string address: Address of token owner

• Returns:

  • Array<TokenInfo>
    • tokenName: string Token name
    • tokenSymbol: string Token symbol
    • totalSupply: big.Int Total supply
    • decimals: uint8 Decimal places
    • owner: Address Token owner
    • isReIssuable: bool Whether the token can be re-issued
    • maxSupply: big.Int Maximum supply
    • isOwnerBurnOnly: bool Whether the token can be burned by the owner only
    • tokenId: TokenId Token ID
    • index: uint16 Token index between 0-999. For token having the same symbol, sequential indexes will be allocated according to when the token is issued.

• Example: