Add indentation to json dump

[sina-rostami]

Hi all,

I was trying to save the request body (a JSON) to a file.
It can be done using wvalue::dump() method to return a string and then write the string in a file.

But, it's not pretty and the JSON won't be easily readable. So, I think it would be great if we could have an indentation option in wvalue::dump() method.

Regards.

[MichaelSB]

Why not feed the file to some json-formatter/pretty-printer in the case you need to read it? Something like jq? I understand your patch does not change the API. I just do not see much use in making the indentation internal to crow.

[sina-rostami]

Why not feed the file to some json-formatter/pretty-printer in the case you need to read it? Something like jq? I understand your patch does not change the API. I just do not see much use in making the indentation internal to crow.

Dumping in a pretty way is a feature that JSON libraries normally provide. Users also could have fed the body to an external JSON parser tool in case of their need! Crow provides JSON support natively as a feature on top of the web framework. So, I think having the feature of indentation in JSON dump will also lead to a better experience for users as they don't need an external tool (like jq) to make their JSON dump pretty.