redis-smq
Version:
A high-performance, reliable, and scalable message queue for Node.js.
42 lines • 2.12 kB
JavaScript
import { async, CallbackEmptyReplyError, } from 'redis-smq-common';
import { redisKeys } from '../../common/redis/redis-keys/redis-keys.js';
import { _getQueueProperties } from '../../queue-manager/_/_get-queue-properties.js';
import { EQueueDeliveryModel, } from '../../queue-manager/index.js';
import { ConsumerGroupsNotSupportedError, InvalidConsumerGroupIdError, } from '../../errors/index.js';
import { EventMultiplexer } from '../../event-bus/event-multiplexer.js';
import { _validateOperation } from '../../queue-operation-validator/_/_validate-operation.js';
import { EQueueOperation } from '../../queue-operation-validator/index.js';
import { validateRedisKey } from '../../common/redis/redis-keys/validator.js';
export function _saveConsumerGroup(redisClient, queue, groupId, cb) {
const gid = validateRedisKey(groupId);
if (gid instanceof Error)
cb(new InvalidConsumerGroupIdError());
else {
async.series([
(cb) => _validateOperation(redisClient, queue, EQueueOperation.CREATE_CONSUMER_GROUP, cb),
(cb) => _getQueueProperties(redisClient, queue, (err, properties) => {
if (err)
cb(err);
else if (!properties)
cb(new CallbackEmptyReplyError());
else if (properties.deliveryModel !== EQueueDeliveryModel.PUB_SUB)
cb(new ConsumerGroupsNotSupportedError());
else
cb();
}),
(cb) => {
const { keyQueueConsumerGroups } = redisKeys.getQueueKeys(queue.ns, queue.name, gid);
redisClient.sadd(keyQueueConsumerGroups, gid, (err, reply) => {
if (err)
cb(err);
else {
if (reply)
EventMultiplexer.publish('queue.consumerGroupCreated', queue, groupId);
cb(null, reply);
}
});
},
], (err, result) => cb(err, result?.[2]));
}
}
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