A collection of named JsonVariant.

The constructor is private, you cannot instantiate a JsonObject directly, you have to use a JsonBuffer.

Because the memory of a JsonObject is located a JsonBuffer, you always manipulate it through reference and you cannot copy it.


StaticJsonBuffer<200> jsonBuffer;

// create an object
JsonObject& object1 = jsonBuffer.createObject();
object1["hello"] = "world";

// parse a JSON object
char json[] = "{\"hello\":\"world\"}";
JsonObject& object2 = jsonBuffer.parseObject(json);

Member functions

See also

Keep learning

Mastering ArduinoJson

The book “Mastering ArduinoJson” is the best material to learn how to use ArduinoJson.

Chapter 3 is a tutorial on deserialization; it explains the various ways to convert an input JSON document into a JsonObject.

Chapter 4 is a tutorial on serialization; it explains the various was to convert a JsonObject into a JSON document.

Chapter 5 explains how JsonObject is implemented.