### Author:  [@jthomas](https://discuss.elastic.co/u/jthomas)
#### Post date: [October 19, 2017, 3:08pm UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/1 "2017-10-19T15:08:42Z")
I'm trying to send logs to Logstash using the Lumberjack protocol from Node.js. I've found this NPM module which implements a client library for the protocol but I can't seem to get it working with an instance of ELK I'm running with Docker.
Here are the steps to reproduce the issue:
>
Having called the "writeDataFrame" methods, nothing appears in the corresponding console for the logstash output to indicate data has been received. Digging into the library, it looks like the "acks" are not returned from the socket.
I'm not sure if this library is still usable with Logstash or I have configured something incorrectly.
---
### Author:  [@xeraa](https://discuss.elastic.co/u/xeraa)
#### Post date: [October 22, 2017, 6:07pm UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/2 "2017-10-22T18:07:26Z")
Had a quick look at [https://github.com/spujadas/elk-docker/blob/es241\_l240\_k461/01-lumberjack-input.conf](https://github.com/spujadas/elk-docker/blob/es241_l240_k461/01-lumberjack-input.conf) (I think this is the source of the Lumberjack configuration) and this seems to fit your configuration.
Are you getting any logs from Logstash?
---
### Author:  [@jthomas](https://discuss.elastic.co/u/jthomas)
#### Post date: [October 23, 2017, 2:50pm UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/3 "2017-10-23T14:50:49Z")
Nothing appears in the console or in Kibana. If you run the same Node.js code with the container, do you see the logs?
---
### Author:  [@xeraa](https://discuss.elastic.co/u/xeraa)
#### Post date: [October 29, 2017, 12:12am UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/4 "2017-10-29T00:12:27Z")
So it mostly works. You just need to fix the index pattern where Logstash is writing it's data. You can see what happens with the following command:
```
$ curl "localhost:9200/_cat/indices?v" 02:06:58
health status index pri rep docs.count docs.deleted store.size pri.store.size
yellow open .kibana 1 1 1 0 3kb 3kb
yellow open %{[@metadata][beat]}-2017.10.29 5 1 4 0 9.2kb 9.2kb
```
Kibana can even work with this:
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### Author:  [@jthomas](https://discuss.elastic.co/u/jthomas)
#### Post date: [October 31, 2017, 3:55pm UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/5 "2017-10-31T15:55:27Z")
It does work!
Thanks for the help, I can see this was due to my inexperience with ELK.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 28, 2017, 4:01pm UTC](https://discuss.elastic.co/t/pushing-logs-over-lumberjack-protocol-from-node-js/104574/6 "2017-11-28T16:01:49Z")
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