httpstatuses/contents/codes/411.md

---
set: 4
code: 411
title: Length Required
references:
    "Rails HTTP Status Symbol": ":length_required"
    "Go HTTP Status Constant": "http.StatusLengthRequired"
    "Symfony HTTP Status Constant": "Response::HTTP_LENGTH_REQUIRED"
    "Python2 HTTP Status Constant": "httplib.LENGTH_REQUIRED"
    "Python3+ HTTP Status Constant": "http.client.LENGTH_REQUIRED"
    "Python3.5+ HTTP Status Constant": "http.HTTPStatus.LENGTH_REQUIRED"
---

The server refuses to accept the request without a defined Content-Length<sup>[1](#ref-1)</sup>.

The client MAY repeat the request if it adds a valid Content-Length header field containing the length of the message body in the request message.

---

* <span id="ref-1"><sup>1</sup> Content-Length [RFC7230 Section 3.3.2][2]</span>
* Source: [RFC7231 Section 6.5.10][1]

[1]: <http://tools.ietf.org/html/rfc7231#section-6.5.10>
[2]: <http://tools.ietf.org/html/rfc7230#section-3.3.2>
Adds placeholder codes for development 2015-11-06 21:39:33 +01:00			`---`
			`set: 4`
			`code: 411`
			`title: Length Required`
Adds 4xx Client Error class status codes descriptions from latest standards 2015-11-07 05:34:40 +01:00			`references:`
			`"Rails HTTP Status Symbol": ":length_required"`
Add Go status constants 2016-01-27 23:08:33 +01:00			`"Go HTTP Status Constant": "http.StatusLengthRequired"`
Add Symfony HTTP Status Constant references (#48) 2016-04-19 15:19:17 +02:00			`"Symfony HTTP Status Constant": "Response::HTTP_LENGTH_REQUIRED"`
Add Python status constants (#57) * Add Python status constants * Add Python 2, Python 3+, Python 3.5+ status constants 2016-05-22 01:07:17 +02:00			`"Python2 HTTP Status Constant": "httplib.LENGTH_REQUIRED"`
			`"Python3+ HTTP Status Constant": "http.client.LENGTH_REQUIRED"`
			`"Python3.5+ HTTP Status Constant": "http.HTTPStatus.LENGTH_REQUIRED"`
Adds placeholder codes for development 2015-11-06 21:39:33 +01:00			`---`

Remove markdown line limit (#52) * Removes line length limit from Status Code Markdown This will make the data easier to use when we develop the API, it needs to be consistent, arbitrary new lines (especially in text format) will be a major issue, so some sort of workaround would have to be implemented, easier to simply fix the source files. * Removes line length limit from misc. Markdown files 2016-04-23 02:12:07 +02:00			`The server refuses to accept the request without a defined Content-Length<sup>[1](#ref-1)</sup>.`
Gives 4xx codes simple opening paragraphs 2015-11-07 06:45:46 +01:00
Remove markdown line limit (#52) * Removes line length limit from Status Code Markdown This will make the data easier to use when we develop the API, it needs to be consistent, arbitrary new lines (especially in text format) will be a major issue, so some sort of workaround would have to be implemented, easier to simply fix the source files. * Removes line length limit from misc. Markdown files 2016-04-23 02:12:07 +02:00			`The client MAY repeat the request if it adds a valid Content-Length header field containing the length of the message body in the request message.`
Adds 4xx Client Error class status codes descriptions from latest standards 2015-11-07 05:34:40 +01:00
Improves 4xx class status codes with referencing 2015-11-09 02:44:05 +01:00			`---`

			`* <span id="ref-1"><sup>1</sup> Content-Length [RFC7230 Section 3.3.2][2]</span>`
			`* Source: [RFC7231 Section 6.5.10][1]`
Adds 4xx Client Error class status codes descriptions from latest standards 2015-11-07 05:34:40 +01:00
			`[1]: <http://tools.ietf.org/html/rfc7231#section-6.5.10>`
Add Go status constants 2016-01-27 23:08:33 +01:00			`[2]: <http://tools.ietf.org/html/rfc7230#section-3.3.2>`