Simple RapidJSON example?

[sanderfoobar]

Missing a RapidJSON example or otherwise documentation regarding its usage.

My object:

#include <iostream>
#include <string>

#include "jinja2cpp/template.h"
#include <jinja2cpp/binding/rapid_json.h>

using namespace jinja2;
[...]

const char *json = R"({
    "message": "Hello World from Parser!"
})";

rapidjson::Document doc;
doc.Parse(json);

My template:

std::string source = R"(
    Value: {{ json.message }}
)";

How to render the template with the RapidJson object available?

This does not work:

std::string result = tpl.RenderAsString(doc).value();

[sanderfoobar]

The answer is to wrap doc using jinja2::Reflect():

#include <iostream>
#include <string>

#include "jinja2cpp/template.h"
#include <jinja2cpp/binding/rapid_json.h>

using namespace jinja2;

int main(void) {
    const char *json = R"(
    {
        "message": "Hello World from Parser!",
        "big_int": 100500100500100,
        "bool_true": true
    }
    )";

    rapidjson::Document doc;
    doc.Parse(json);

    std::string source = R"(
        {{ json.message }}
    )";

    Template tpl;
    tpl.Load(source);

    ValuesMap params = {
        {"json", Reflect(doc)},
    };

    std::string result = tpl.RenderAsString(params).value();
    std::cout << result << std::endl;

    return 0;
}