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Hedera Protobuf Java API

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syntax = "proto3";

package proto;

/*-
 * ‌
 * Hedera Network Services Protobuf
 * 
 * Copyright (C) 2018 - 2020 Hedera Hashgraph, LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ‍
 */

option java_package = "com.hederahashgraph.api.proto.java";
option java_multiple_files = true;

import "BasicTypes.proto";
import "Duration.proto";

// See [ConsensusService.createTopic()](#proto.ConsensusService)
message ConsensusCreateTopicTransactionBody {
    string memo = 1; // Short publicly visible memo about the topic. No guarantee of uniqueness.

    // Access control for updateTopic/deleteTopic.
    // Anyone can increase the topic's expirationTime via ConsensusService.updateTopic(), regardless of the adminKey.
    // If no adminKey is specified, updateTopic may only be used to extend the topic's expirationTime, and deleteTopic
    // is disallowed.
    Key adminKey = 2;

    // Access control for submitMessage.
    // If unspecified, no access control is performed on ConsensusService.submitMessage (all submissions are allowed).
    Key submitKey = 3;

    // The initial lifetime of the topic and the amount of time to attempt to extend the topic's lifetime by
    // automatically at the topic's expirationTime, if the autoRenewAccount is configured (once autoRenew functionality
    // is supported by HAPI).
    // Limited to MIN_AUTORENEW_PERIOD and MAX_AUTORENEW_PERIOD value by server-side configuration.
    // Required.
    Duration autoRenewPeriod = 6;

    // Optional account to be used at the topic's expirationTime to extend the life of the topic (once autoRenew
    // functionality is supported by HAPI).
    // The topic lifetime will be extended up to a maximum of the autoRenewPeriod or however long the topic
    // can be extended using all funds on the account (whichever is the smaller duration/amount and if any extension
    // is possible with the account's funds).
    // If specified, there must be an adminKey and the autoRenewAccount must sign this transaction.
    AccountID autoRenewAccount = 7;
}