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diff --git a/libraries/ESP_Async_WebServer/examples/Json/Json.ino b/libraries/ESP_Async_WebServer/examples/Json/Json.ino
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+++ b/libraries/ESP_Async_WebServer/examples/Json/Json.ino
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+// SPDX-License-Identifier: LGPL-3.0-or-later
+// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
+
+//
+// Shows how to send and receive Json data
+//
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#include <WiFi.h>
+#elif defined(ESP8266)
+#include <ESP8266WiFi.h>
+#include <ESPAsyncTCP.h>
+#elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350)
+#include <RPAsyncTCP.h>
+#include <WiFi.h>
+#endif
+
+#include <ESPAsyncWebServer.h>
+
+#if __has_include("ArduinoJson.h")
+#include <ArduinoJson.h>
+#include <AsyncJson.h>
+#include <AsyncMessagePack.h>
+#endif
+
+static AsyncWebServer server(80);
+
+#if __has_include("ArduinoJson.h")
+static AsyncCallbackJsonWebHandler *handler = new AsyncCallbackJsonWebHandler("/json2");
+#endif
+
+void setup() {
+  Serial.begin(115200);
+
+#ifndef CONFIG_IDF_TARGET_ESP32H2
+  WiFi.mode(WIFI_AP);
+  WiFi.softAP("esp-captive");
+#endif
+
+#if __has_include("ArduinoJson.h")
+  //
+  // sends JSON using AsyncJsonResponse
+  //
+  // curl -v http://192.168.4.1/json1
+  //
+  server.on("/json1", HTTP_GET, [](AsyncWebServerRequest *request) {
+    AsyncJsonResponse *response = new AsyncJsonResponse();
+    JsonObject root = response->getRoot().to<JsonObject>();
+    root["hello"] = "world";
+    response->setLength();
+    request->send(response);
+  });
+
+  // Send JSON using AsyncResponseStream
+  //
+  // curl -v http://192.168.4.1/json2
+  //
+  server.on("/json2", HTTP_GET, [](AsyncWebServerRequest *request) {
+    AsyncResponseStream *response = request->beginResponseStream("application/json");
+    JsonDocument doc;
+    JsonObject root = doc.to<JsonObject>();
+    root["foo"] = "bar";
+    serializeJson(root, *response);
+    request->send(response);
+  });
+
+  // curl -v -X POST -H 'Content-Type: application/json' -d '{"name":"You"}' http://192.168.4.1/json2
+  // curl -v -X PUT -H 'Content-Type: application/json' -d '{"name":"You"}' http://192.168.4.1/json2
+  handler->setMethod(HTTP_POST | HTTP_PUT);
+  handler->onRequest([](AsyncWebServerRequest *request, JsonVariant &json) {
+    serializeJson(json, Serial);
+    AsyncJsonResponse *response = new AsyncJsonResponse();
+    JsonObject root = response->getRoot().to<JsonObject>();
+    root["hello"] = json.as<JsonObject>()["name"];
+    response->setLength();
+    request->send(response);
+  });
+
+  server.addHandler(handler);
+#endif
+
+  server.begin();
+}
+
+// not needed
+void loop() {
+  delay(100);
+}