foreign/node/src/wire/consumer-group/join-group.command.ts

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// distributed with this work for additional information
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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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import { type Id } from '../identifier.utils.js';
import { serializeTargetGroup } from './group.utils.js';
import { deserializeVoidResponse } from '../../client/client.utils.js';
import { wrapCommand } from '../command.utils.js';
import { COMMAND_CODE } from '../command.code.js';

/**
 * Parameters for the join consumer group command.
 */
export type JoinGroup = {
  /** Stream identifier (ID or name) */
  streamId: Id,
  /** Topic identifier (ID or name) */
  topicId: Id,
  /** Consumer group identifier (ID or name) */
  groupId: Id
};

/**
 * Join consumer group command definition.
 * Adds the current client as a member of the consumer group.
 */
export const JOIN_GROUP = {
  code: COMMAND_CODE.JoinGroup,

  serialize: ({ streamId, topicId, groupId }: JoinGroup) => {
    return serializeTargetGroup(streamId, topicId, groupId);
  },

  deserialize: deserializeVoidResponse
};


/**
 * Executable join consumer group command function.
 */
export const joinGroup = wrapCommand<JoinGroup, boolean>(JOIN_GROUP);