# HTTP output plugin clarification
**URL:** https://discuss.elastic.co/t/http-output-plugin-clarification/202231
**Category:** Logstash
**Created:** [October 3, 2019, 6:59pm UTC](https://discuss.elastic.co/t/http-output-plugin-clarification/202231 "2019-10-03T18:59:31Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@nxns1](https://discuss.elastic.co/u/nxns1)
#### Post date: [October 3, 2019, 6:59pm UTC](https://discuss.elastic.co/t/http-output-plugin-clarification/202231/1 "2019-10-03T18:59:31Z")
Hi, Im sending a json format input to logstash, and I have it configured to post to a http endpoint. When I output the data on stdout I get something like:
{
"path" =\> "blabla",
"@timestamp" =\> blabla,
"host" =\> "blabla",
"message" =\> "blabla",
"@version" =\> "1"
}
I was wondering if it's only the message that gets send to the http endpoint, or this whole string? I want to know because I get an http error 400, and I am trying to figure out if it's the bad format of the string. (I only need whats inside the message field)
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### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [October 3, 2019, 7:39pm UTC](https://discuss.elastic.co/t/http-output-plugin-clarification/202231/2 "2019-10-03T19:39:07Z")
The default codec on an http output is [https://www.elastic.co/guide/en/logstash/7.4/plugins-codecs-plain.html](https://www.elastic.co/guide/en/logstash/7.4/plugins-codecs-plain.html). If you do not specify a format then it will [use](https://github.com/logstash-plugins/logstash-codec-plain/blob/892c5a304e0d08985daf6d843db2dbbe566562c5/lib/logstash/codecs/plain.rb#L39) the timestamp, hostname, and [message] field concatenated.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 31, 2019, 7:39pm UTC](https://discuss.elastic.co/t/http-output-plugin-clarification/202231/3 "2019-10-31T19:39:16Z")
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