How do I serialize and deserialize data structures in C++?

Serialization and deserialization are crucial processes in C++ for transferring data structures over networks or saving them to files. This involves converting an object into a format that can be easily stored and reconstructed later. Below is a simple example demonstrating how to serialize and deserialize a custom data structure in C++ using JSON as the format.


    // Example of serialization and deserialization in C++
    #include 
    #include 
    #include 
    #include 

    using json = nlohmann::json;

    struct Person {
        std::string name;
        int age;

        // Method to serialize the object
        json toJSON() const {
            return json{{"name", name}, {"age", age}};
        }

        // Method to deserialize the object
        static Person fromJSON(const json& j) {
            Person p;
            j.at("name").get_to(p.name);
            j.at("age").get_to(p.age);
            return p;
        }
    };

    int main() {
        // Create a Person object
        Person person{"John Doe", 30};

        // Serialize the object to JSON
        json j = person.toJSON();
        std::ofstream file("person.json");
        file << j.dump(4); // Write pretty JSON to the file
        file.close();

        // Deserialize the object from JSON
        std::ifstream inputFile("person.json");
        json j2;
        inputFile >> j2;
        Person newPerson = Person::fromJSON(j2);
        std::cout << "Name: " << newPerson.name << ", Age: " << newPerson.age << std::endl;

        return 0;
    }

Serialization Deserialization C++ JSON Data Structures Nlohmann/json

How do I serialize and deserialize data structures in C++?

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How do I serialize and deserialize data structures in C++?

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