Serialization of array of not same model items #712

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1. nlohmann commented on Aug 26, 2017

   

   nlohmann

   on Aug 26, 2017

   Owner

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   There is no problem with this. This program parses your input and prints it:

   #include "json.hpp"
   #include <iostream>
   
   using json =  nlohmann::json;
   
   int main() {
       std::string text = R"([
       {
           "id": 0,
           "name": "adsad"
       },
       {
           "id": "123",
           "name": "aawew"
       }
       ])";
       
       json j = json::parse(text);
       
       std::cout << std::setw(2) << j << std::endl;
   }

   Output:

   [
     {
       "id": 0,
       "name": "adsad"
     },
     {
       "id": "123",
       "name": "aawew"
     }
   ]

   What is your error message?
2. nlohmann

   added

   kind: question

   on Aug 26, 2017
3. Haaxor1689 commented on Aug 26, 2017

   

   Haaxor1689

   on Aug 26, 2017

   Last edited by Haaxor1689

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   So I've solved this issue now. I was getting the error in from_json method that converts that json to my model class.

   class Model {
       int id;
       std::string name;
   }

   Solution was pretty straightforward once I found out that I can check the type of data that lies in json type on runtime with this simple function:

   int getInt(const json& value) {
       return value.is_string() ? std::stoi(value.get<std::string>()) : value.get<int>();
   }

   So because I know that the value for id should be int but is sometimes saved as a string I just call this function when reading the value in from_json function.
4. nlohmann

   closed this as completedon Aug 26, 2017