Casablanca question retrieving json

Question

0.00/5 (No votes)

See more:

Hi all, just dipping my toes into the Casablanca world and need some help working with json::value objects - I've made a call to a server which returns JSON and have the data I want in jsonValue as shown below - the element I need is "result" and I can't fathom out how to get it out of the collection - I've tried auto myres = jsonValue[3] which gives an error no operator "[]" matches these operands - any ideas ?

C#

jsonValue dump
object {size = 4}
    [0]: (L"id", 1)
    [1]: (L"method", 0x0047c694 L"slim.request")
    [2]: (L"params", array {size = 2})
    [3]: (L"result", object {size = 11})
    [Raw View]: 0x0282f0c0 {m_value=unique_ptr {m_object={size = 4} } m_kind=Object(3) }

What I have tried:

What I've tried is in the question

Posted 16-Feb-16 1:52am

pkfox

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

barneyman · Answer 1 · 2016-02-16T14:26:00

Solution 1

C++

auto objValue=dump[_T("result")].as_object()

See Casablanc docs[^]

Posted 16-Feb-16 14:26pm

barneyman

Comments

pkfox 17-Feb-16 3:33am

Doesn't compile - I'm not using MFC here this is pure C++ - the following code did the trick

json::value jsonValue2 = jsonValue.at(U("result"));