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Transactions — HCS‑16 Builders

HCS‑16 centralizes all transaction construction in builders to keep payloads canonical across Node, browser, and Go.

Sources

Create Flora TopicDirect link to Create Flora Topic​

import { buildHcs16CreateFloraTopicTx } from '@hashgraphonline/standards-sdk';

const tx = buildHcs16CreateFloraTopicTx({
  floraAccountId: '0.0.500',
  topicType: 0,  // 0=communication, 1=transaction, 2=state
  adminKey: true,
  submitKey: true,
});

Create Flora AccountDirect link to Create Flora Account​

import { buildHcs16CreateAccountTx } from '@hashgraphonline/standards-sdk';

const tx = buildHcs16CreateAccountTx({
  keyList,
  initialBalanceHbar: 5,
  maxAutomaticTokenAssociations: -1,
});

Generic Flora MessageDirect link to Generic Flora Message​

import { FloraOperation, buildHcs16MessageTx } from '@hashgraphonline/standards-sdk';

const tx = buildHcs16MessageTx({
  topicId: '0.0.600',
  operatorId: '0.0.123',
  op: FloraOperation.TRANSACTION,
  body: { schedule_id: '0.0.12345' },
});

Flora CreatedDirect link to Flora Created​

buildHcs16FloraCreatedTx({ topicId, operatorId, floraAccountId, topics });

State UpdateDirect link to State Update​

buildHcs16StateUpdateTx({ topicId, operatorId, hash, epoch, accountId, topics, memo });

Join Request / Vote / AcceptedDirect link to Join Request / Vote / Accepted​

buildHcs16FloraJoinRequestTx({ topicId, operatorId, accountId, connectionRequestId, connectionTopicId, connectionSeq });
buildHcs16FloraJoinVoteTx({ topicId, operatorId, accountId, approve, connectionRequestId, connectionSeq });
buildHcs16FloraJoinAcceptedTx({ topicId, operatorId, members, epoch });