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libraries/ArduinoJson/extras/scripts/wandbox/JsonParserExample.cpp

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+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2025, Benoit BLANCHON
+// MIT License
+//
+// This example shows how to deserialize a JSON document with ArduinoJson.
+
+#include <iostream>
+#include "ArduinoJson.h"
+
+int main() {
+  // Allocate the JSON document
+  JsonDocument doc;
+
+  // JSON input string
+  const char* json =
+      "{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";
+
+  // Deserialize the JSON document
+  DeserializationError error = deserializeJson(doc, json);
+
+  // Test if parsing succeeds
+  if (error) {
+    std::cerr << "deserializeJson() 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<long>();
+  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;
+}