// ArduinoJson - https://arduinojson.org // Copyright © 2014-2024, Benoit BLANCHON // MIT License // // This example shows how to generate a JSON document with ArduinoJson. #include #include "ArduinoJson.h" int main() { // Allocate the JSON document JsonDocument doc; // The MessagePack input string uint8_t input[] = {131, 166, 115, 101, 110, 115, 111, 114, 163, 103, 112, 115, 164, 116, 105, 109, 101, 206, 80, 147, 50, 248, 164, 100, 97, 116, 97, 146, 203, 64, 72, 96, 199, 58, 188, 148, 112, 203, 64, 2, 106, 146, 230, 33, 49, 169}; // This MessagePack document contains: // { // "sensor": "gps", // "time": 1351824120, // "data": [48.75608, 2.302038] // } // Parse the input DeserializationError error = deserializeMsgPack(doc, input); // Test if parsing succeeds if (error) { std::cerr << "deserializeMsgPack() failed: " << error.c_str() << std::endl; return 1; } // Fetch the values // // Most of the time, you can rely on the implicit casts. // In other case, you can do doc["time"].as(); const char* sensor = doc["sensor"]; long time = doc["time"]; double latitude = doc["data"][0]; double longitude = doc["data"][1]; // Print the values std::cout << sensor << std::endl; std::cout << time << std::endl; std::cout << latitude << std::endl; std::cout << longitude << std::endl; return 0; }