ArduinoJson Version 6

Current version is 6.12.0.

If you’re upgrading from version 5, some changes will be required to your code. See the Version 6 Migration Guide for details.

Some methods of JsonVariant have been removed, replacements are:

asString() -> as<char*>() or as<const char*>. Note that as<String> produces a serialized version, so you’ll get “null” instead of an empty/invalid result String.

asArray() -> as<JsonArray>()

asObject() -> as<JsonObject>()

There are also some useful helper functions available in the Json namespace. See Libraries/ArduinoJson6/include/ArduinoJson.h.

Sming definitions

JsonObjectStream

References

• Source Code

Used by

• GoogleCast Library

• Hue Emulator Library

• IO Control Library

• Basic RS485 Sample

• Fan Controller Sample

• RingTone Player Sample

• Yeelight Library

• Basic Web Skeleton Sample

• HttpClient Instapush Sample

• AJAX Http Server Sample

• HttpServer Config Network Sample

• MeteoControl Sample

SoC support

• esp32

• esp32c2

• esp32c3

• esp32s2

• esp32s3

• esp8266

• host

• rp2040

• rp2350

Submodule: ArduinoJson

• Features
• Quickstart
  • Deserialization
  • Serialization
• Sponsors