What user-defined request error levels are recommended?

[Hexamorph]

Am 30.04.2020 um 22:56 schrieb Dan Campbell:
> On Thursday, April 30, 2020 at 4:42:41 PM UTC-4, Ed Leafe wrote:
>> On Apr 30, 2020, at 15:14, dc wrote:
>>>
>>> Hi, what range of error codes are recommended, if we wanted to return a user-defined code?
>>>
>>> Obviously, we don't want to use a code in the 200+ range, or the 400+ range, e.g.
>>>
>>> I want to throw, or just return, a code that represents that the size of a web page (len(response.content)) is less than the expected size.
>>
>> You can create your own internal codes as long as they don’t clash with the standard code. If the custom code is for a success, a 2xx code would be appropriate. If it is a user error, you could use a 4xx code.
>>
>> However, I would prefer to use the standard codes, and add a custom header with more information on the issue.
>>
>>
>> -- Ed Leafe
>
> Ok, I'll try to find the the 400s list.  My concern is that a future library will use the 400+ code that I choose.
>

According to the German Wikipedia, some software vendors use 9xx for
proprietary error codes, which have never been mentioned in the RFC.
They are probably save for non-standard use.


https://de.wikipedia.org/wiki/HTTP-Statuscode#9xx_%E2%80%93_Propriet%C3%A4re_Fehler