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
Methods
Example
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
Methods
Example
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
Methods
Example
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
Example
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