C++ POCO - How to beautify a JSON?

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I generate a JSON file using POCO library like this:

void writeToFile()
{
    Poco::JSON::Object::Ptr json = new Poco::JSON::Object;
    json->set("name", "foo");
    json->set("address", "bar");

    std::ostringstream oss;
    Poco::JSON::Stringifier::stringify(json, oss);
    std::ofstream ofs("output.json");
    if (ofs.is_open() == true)
    {
        ofs << oss.str();
        ofs.close();
    }
}

The output.json contains:

{"name":"foo","address":"bar"}

Is there any way on POCO to beautify a JSON?

So that the output would be like:

{
    "name" : "foo",
    "address" : "bar"
}
poco-libraries c++ json
1 Answers

As @Dmitry said on the comments, the parameters on the stringify() method would do:

static void stringify(
    const Dynamic::Var & any,
    std::ostream & out,
    unsigned int indent = 0,
    int step = - 1,
    int options = Poco::JSON_WRAP_STRINGS
);

Example:

Poco::JSON::Stringifier::stringify(json, oss, 4, -1, Poco::JSON_PRESERVE_KEY_ORDER);
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