I am ok using this syntax with the nlohmann library
{
"key1": {"subKey1": "value11",
"subKey2": "value12"},
"key2": {"subKey1": "value21",
"subKey2": "value22"}
}
But I have a new file, which is valid json too (I checked) and is written this way, it is made of a single array of repetitive objects. My code will require to look through those objects and check values inside them individually:
[
{"key1": "value11",
"key2": "value12"},
{"key1": "value21",
"key2": "value22"}
]
I used to read my json files this way:
#include "json.hpp"
nlohmann::json topJson;
nlohmann::json subJson;
if(topJson.find(to_string("key1")) != topJson.end())
{
subJson = topJson["key1"];
entity.SetSubKeyOne(subJson["subKey1"]);
}
But this won't work with my new file syntax. How can I access these repetitive objects and tell nlohmann that my objects are inside an array? More precisely, how would I be able to reach (for example) "value22" with this file syntax?
Thanks!
You can try this:
std::string ss= R"(
{
"test-data":
[
{
"name": "tom",
"age": 11
},
{
"name": "jane",
"age": 12
}
]
}
)";
json myjson = json::parse(ss);
auto &students = myjson["test-data"];
for(auto &student : students) {
cout << "name=" << student["name"].get<std::string>() << endl;
}