@hashgraph/hedera-cli/src/commands/topic/create.ts

CLI tool to manage and setup developer environments for Hedera Hashgraph.

import stateUtils from '../../utils/state';
import { Logger } from '../../utils/logger';
import signUtils from '../../utils/sign';
import telemetryUtils from '../../utils/telemetry';
import stateController from '../../state/stateController';
import dynamicVariablesUtils from '../../utils/dynamicVariables';
import { TopicCreateTransaction, PrivateKey } from '@hashgraph/sdk';

import type { Command, Topic } from '../../../types';

const logger = Logger.getInstance();

export default (program: any) => {
  program
    .command('create')
    .hook('preAction', async (thisCommand: Command) => {
      const command = [
        thisCommand.parent.action().name(),
        ...thisCommand.parent.args,
      ];
      if (stateUtils.isTelemetryEnabled()) {
        await telemetryUtils.recordCommand(command.join(' '));
      }
    })
    .description('Create a new topic')
    .option('-a, --admin-key <adminKey>', 'The admin key')
    .option('-s, --submit-key <submitKey>', 'The submit key')
    .option('--memo <memo>', 'The memo')
    .option(
      '--args <args>',
      'Store arguments for scripts',
      (value: string, previous: string) =>
        previous ? previous.concat(value) : [value],
      [],
    )
    .action(async (options: CreateTopicOptions) => {
      options = dynamicVariablesUtils.replaceOptions(options); // allow dynamic vars for admin-key and submit-key
      logger.verbose('Creating topic');

      const client = stateUtils.getHederaClient();

      let topicId;
      try {
        const topicCreateTx = new TopicCreateTransaction();
        if (options.memo) {
          topicCreateTx.setTopicMemo(options.memo);
        }
        if (options.adminKey) {
          topicCreateTx.setAdminKey(PrivateKey.fromStringDer(options.adminKey));
        }
        if (options.submitKey) {
          topicCreateTx.setSubmitKey(
            PrivateKey.fromStringDer(options.submitKey),
          );
        }

        // Signing
        topicCreateTx.freezeWith(client);
        const signedTopicCreateTx = await signUtils.signByType(
          topicCreateTx,
          'topicCreate',
          {
            adminKey: options.adminKey,
            submitKey: options.submitKey,
          },
        );

        const topicCreateTxResponse = await signedTopicCreateTx.execute(client);
        const receipt = await topicCreateTxResponse.getReceipt(client);
        topicId = receipt.topicId;
      } catch (error) {
        logger.error('Error creating new topic:', error as object);
        client.close();
        process.exit(1);
      }

      if (!topicId) {
        logger.error('Failed to create new topic');
        client.close();
        process.exit(1);
      }

      logger.log(`Created new topic: ${topicId.toString()}`);

      const topic: Topic = {
        network: stateUtils.getNetwork(),
        topicId: topicId.toString(),
        adminKey: options.adminKey || '',
        submitKey: options.submitKey || '',
        memo: options.memo || '',
      };

      const topics: Record<string, Topic> = stateController.get('topics');
      const updatedTopics = { ...topics, [topicId.toString()]: topic };
      stateController.saveKey('topics', updatedTopics);
      logger.verbose(`Saved topic to state: ${topicId.toString()}`);

      client.close();
      dynamicVariablesUtils.storeArgs(
        options.args,
        dynamicVariablesUtils.commandActions.topic.create.action,
        topic,
      );
    });
};

interface CreateTopicOptions {
  adminKey: string;
  submitKey: string;
  memo: string;
  args: string[];
}