create json instance from raw json (unsigned char*)

[CheyenneForbes]

I cant get nor set values if I try :

basic_ostream BOS = get_json_from_server(); // the json response from a server
json BOS_json = BOS;

If I am doing something wrong, whats the right way to create a json instance from raw json received from a webserver as basic_ostream?

[CheyenneForbes]

Can anyone help me?

[gregmarr]

You need to have an istream, not an ostream.

[CheyenneForbes]

What can I do if the http client I am using returns the response body as a "basic_ostream"?

[gregmarr]

That seems to be an odd thing for it to return. What client are you using?

[CheyenneForbes]

it was made by a friend, I was reading wrong, it actually returns "unsigned char*" and not "basic_ostream", my apologies.

but it doesnt work still, how can I create a nlohmann::json instance from json (not Serialized) returned from a server?

[gregmarr]

json::parse()

[CheyenneForbes]

that gives "Segmentation fault"

[gregmarr]

Where is the segmentation fault (stack trace)? It could be a problem with the string itself. Do you get the same fault if you use strlen() on the string?

[nlohmann]

@CheyenneForbes As @gregmarr said, the parse function can handle char *. Can you please add more precise description of your errors?

[nlohmann]

@CheyenneForbes Any update?

[CheyenneForbes]

Hey, sorry for the delayed response, the client was actually sending a POST request instead of a GET request so the json instance was actually "empty bytes" when I was trying to add/get data, I thought the issue was with the json instance because when I opened the link in the browser it worked. I recommend that anyone using the json header file and plan to receive the json data from "outside" should do so in a try{}catch(){} block when application crashes due to "empty" data arent "acceptable", for example when being used in a web server

[nlohmann]

Thanks for the quick response!