Struct hedera::TopicInfo

pub struct TopicInfo {
    pub topic_id: TopicId,
    pub topic_memo: String,
    pub running_hash: Vec<u8>,
    pub sequence_number: u64,
    pub expiration_time: Option<OffsetDateTime>,
    pub admin_key: Option<Key>,
    pub submit_key: Option<Key>,
    pub auto_renew_account_id: Option<AccountId>,
    pub auto_renew_period: Option<Duration>,
    pub ledger_id: LedgerId,
}

Response from TopicInfoQuery.

Fields

topic_id: TopicId

The ID of the topic for which information is requested.

topic_memo: String

Short publicly visible memo about the topic. No guarantee of uniqueness

running_hash: Vec<u8>

SHA-384 running hash of (previousRunningHash, topicId, consensusTimestamp, sequenceNumber, message).

sequence_number: u64

Sequence number (starting at 1 for the first submitMessage) of messages on the topic.

expiration_time: Option<OffsetDateTime>

Effective consensus timestamp at (and after) which submitMessage calls will no longer succeed on the topic.

admin_key: Option<Key>

Access control for update/delete of the topic.

submit_key: Option<Key>

Access control for submit message.

auto_renew_account_id: Option<AccountId>

An account which will be automatically charged to renew the topic’s expiration, at auto_renew_period interval.

auto_renew_period: Option<Duration>

The interval at which the auto-renew account will be charged to extend the topic’s expiry.

ledger_id: LedgerId

The ledger ID the response was returned from

Implementations

impl TopicInfo

pub fn from_bytes(bytes: &[u8]) -> Result<Self>

Create a new TopicInfo from protobuf-encoded bytes.

Errors

• Error::FromProtobuf if decoding the bytes fails to produce a valid protobuf.
• Error::FromProtobuf if decoding the protobuf fails.

pub fn to_bytes(&self) -> Vec<u8>

Convert self to a protobuf-encoded Vec<u8>.

Trait Implementations

impl Clone for TopicInfo

fn clone(&self) -> TopicInfo

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TopicInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.