Specialized Types
An
AccountId is composed of a <shardNum>.<realmNum>.<accountNum> (eg. 0.0.10).- Shard number (
shardNum) represents the shard number (shardId). It will default to 0 today, as Hedera only performs in one shard. - Realm number (
realmNum) represents the realm number (realmId). It will default to 0 today, as realms are not yet supported. - Account represents either an account number or an account alias
- Account number (
accountNum) represents the account number (accountId) - Account alias (alias) represented by the public key bytes
- The public key bytes are the result of serializing a protobuf Key message for any primitive key type
- Currently, only primitive key bytes are supported as an alias
- Threshold keys, key list, contract ID, and delegatable_contract_id are not supported
- The alias can only be used in place of an account ID in transfer transactions in its current version
Together these values make up your
AccountId. When an AccountId is specified, be sure all three values are included.Constructor | Type | Description |
new AccountId(<shardNum>,<realmNum>,<accountNum>) | long, long, long | Constructs an AccountId with 0 for shardNum and realmNum (e.g., 0.0.<accountNum>) |
Methods | Type | Description |
AccountId.fromString(<account>) | String | Constructs an AccountId from a string formatted as <shardNum>.<realmNum>.<accountNum> |
AccountId.fromSolidityAddress(<address>) | String | Constructs an AccountId from a solidity address in string format |
AccountId.fromBytes(bytes) | byte[] | Constructs an AccountId from bytes |
AccountId.toSolidityAddress() | String | Constructs a solidity address from AccountID |
AccountId.toString() | String | Constructs an AccountID from string |
AccountId.aliasKey | PublicKey | The alias key of the AccountID |
AccountId.aliasEvmAddress | EVM address | The EVM address of the AccountID |
AccountId.toBytes() | byte[] | Constructs an AccountID from bytes |
Java
JavaScript
Go
AccountId accountId = new AccountId(0 ,0 ,10);
System.out.println(accountId);
// Constructs an accountId from String
AccountId accountId = AccountId.fromString("0.0.10");
System.out.println(accountId);
const accountId = new AccountId(100);
console.log(`${accountId}`);
// Construct accountId from String
const accountId = AccountId.fromString(`100`);
console.log(`${accountId}`);
hedera.AccountIDFromString("0.0.3")
A
FileId is composed of a <shardNum>.<realmNum>.<fileNum> (eg. 0.0.15).- shardNum represents the shard number (
shardId). It will default to 0 today, as Hedera only performs in one shard. - realmNum represents the realm number (
realmId). It will default to 0 today, as realms are not yet supported. - fileNum represents the file number
Together these values make up your accountId. When an
FileId is requested, be sure all three values are included.Constructor | Type | Description |
new FileId(<shardNum>,<realmNum>,<fileNum>) | long, long, long | Constructs a FileId with 0 for shardNum and realmNum (e.g., 0.0.<fileNum>) |
Methods | Type | Description |
FileId.fromString() | String | Constructs an FileId from a string formatted as<shardNum>.<realmNum>.<fileNum> |
FileId.fromSolidityAddress() | String | Constructs an FileId from a solidity address in string format |
FileId.ADDRESS_BOOK | FileId | The public node address book for the current network |
FileId.EXCHANGE_RATES | FileId | The current exchange rate of HBAR to USD |
FileId.FEE_SCHEDULE | FileId | The current fee schedule for the network |
Java
JavaScript
Go
FileId fileId = new FileId(0,0,15);
System.out.println(fileId);
//Constructs a FileId from string
FileId fileId = FileId.fromString("0.0.15");
System.out.println(fileId);
const newFileId = new FileId(100);
console.log(`${newFileId}`);
//Construct a fileId from a String
const newFileIdFromString = FileId.fromString(`100`);
console.log(`${newFileIdFromString}`);
hedera.FileIDFromString("0.0.3")
A
ContractId is composed of a <shardNum>.<realmNum>.<contractNum> (eg. 0.0.20).- shardNum represents the shard number (
shardId). It will default to 0 today, as Hedera only performs in one shard. - realmNum represents the realm number (
realmId). It will default to 0 today, as realms are not yet supported. - contractNum represents the contract number
Together these values make up your
ContractId. When an ContractId is requested, be sure all three values are included. ContractId's are automatically assigned when you create a new smart contract.Constructor | Type | Description |
new ContractId(<shardNum>,<realmNum>,<contractNum>) | long, long, long | Constructs a ContractId with 0 for shardNum and realmNum (e.g., 0.0.<contractNum>) |
Methods | Type | Description |
ContractId.fromString(<account>) | String | Constructs a ContractId from a string formatted as<shardNum>.<realmNum>.<contractNum> |
ContractId.fromSolidityAddress(<address>)[deprecated use ConractId.fromEvmAddress()] | String | Constructs a ContractId from a solidity address in string format [deprecated use ContractId.fromEvmAddres()] |
ContractId.toSolidityAddress(<contractId>) | String | Contruct a Solidity address from a Hedera contract ID |
ContractId.fromEvmAddress(<shard>, <realm>, <evmAddress>) | long, long, String | Constructs a ContractId from evm address |
Java
JavaScript
Go
ContractId contractId = new ContractId(0,0,20);
System.out.println(contractId);
// Constructs a ContractId from string
ContractId contractId = ContractId.fromString("0.0.20");
System.out.println(contractId);
const newContractId = new ContractId(100);
console.log(`${newContractId}`);
// Construct a contractId from a String
const newContractId = ContractId.fromString(`100`);
console.log(`${newContractId}`);
hedera.ContractIDFromString("0.0.3")
A
topicId is composed of a <shardNum>.<realmNum>.<topicNum> (eg. 0.0.100).- shardNum represents the shard number (
shardId). It will default to 0 today, as Hedera only performs in one shard. - realmNum represents the realm number (
realmId). It will default to 0 today, as realms are not yet supported. - topicNum represents the topic number (
topicId)
Constructor | Type | Description |
new ConsensusTopicId(<shardNum>,<realmNum>,<topicNum>) | long, long, long | Constructs a TopicId with 0 for shardNum and realmNum (e.g., 0.0.<topicNum>) |
Methods | Type | Description |
fromString(<topic>) | String | Constructs a topic ID from a String |
ConsensusTopicId.toString() | | Constructs a topic ID to String format |
Java
JavaScript
Go
ConsensusTopicId topicId = new ConsensusTopicId(0,0,100);
System.out.println(topicId)
const topicId = new ConsensusTopicId(0,0,100);
console.log(topicId)
hedera.TopicIDFromString("0.0.3")
Last modified 4mo ago