# Pulsar connectivity

**URL:** <https://discuss.elastic.co/t/pulsar-connectivity/317939>\
**Category:** Logstash\
**Created:** [November 2, 2022, 5:17am UTC](https://discuss.elastic.co/t/pulsar-connectivity/317939 "2022-11-02T05:17:46Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![omicronian8](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/omicronian8/32/112798_2.png) [@omicronian8](https://discuss.elastic.co/u/omicronian8)\
**Post date:** [November 2, 2022, 5:17am UTC](https://discuss.elastic.co/t/pulsar-connectivity/317939/1 "2022-11-02T05:17:46Z")

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I need to store the output of logstash onto a pulsar topic. Looking at the documentation and other threads here, I couldn't find any leads on it. I could only get a git repo where we can use pulsar topic as an input to logstash.

Is there any way to use a pulsar topic as the output for logstash?

Thanks in advance 🙂

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [November 2, 2022, 11:16pm UTC](https://discuss.elastic.co/t/pulsar-connectivity/317939/2 "2022-11-02T23:16:01Z")

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Welcome to our community! 😃

What is a pulsar topic?

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**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [November 2, 2022, 11:40pm UTC](https://discuss.elastic.co/t/pulsar-connectivity/317939/3 "2022-11-02T23:40:43Z")

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> [@warkolm](#):
>
> What is a pulsar topic?

Pulsar is an Apache pub-sub app. I doubt any existing output plugin would work.

There is a Java API from Apache, along with a couple of third-party Ruby client APIs that haven't been modified in years.

If my paycheck depended on making it work, I would have logstash write to kafka and then connect kafka to pulsar. An ugly hack, and a shop running pulsar could certainly have concerns about running kafka, but it saves writing an pulsar output plugin.

There may well be other systems for which there is both a logstash output and a pulsar source connector.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 30, 2022, 11:41pm UTC](https://discuss.elastic.co/t/pulsar-connectivity/317939/4 "2022-11-30T23:41:33Z")

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