// SPDX-License-Identifier: LGPL-3.0-or-later // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov // // Shows how to send and receive Message Pack data // #include #ifdef ESP32 #include #include #elif defined(ESP8266) #include #include #elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350) #include #include #endif #include #if __has_include("ArduinoJson.h") #include #include #include #endif static AsyncWebServer server(80); #if __has_include("ArduinoJson.h") static AsyncCallbackMessagePackWebHandler *handler = new AsyncCallbackMessagePackWebHandler("/msgpack2"); #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 MessagePack using AsyncMessagePackResponse // // curl -v http://192.168.4.1/msgpack1 // server.on("/msgpack1", HTTP_GET, [](AsyncWebServerRequest *request) { AsyncMessagePackResponse *response = new AsyncMessagePackResponse(); JsonObject root = response->getRoot().to(); root["hello"] = "world"; response->setLength(); request->send(response); }); // Send MessagePack using AsyncResponseStream // // curl -v http://192.168.4.1/msgpack2 // server.on("/msgpack2", HTTP_GET, [](AsyncWebServerRequest *request) { AsyncResponseStream *response = request->beginResponseStream("application/msgpack"); JsonDocument doc; JsonObject root = doc.to(); root["foo"] = "bar"; serializeMsgPack(root, *response); request->send(response); }); handler->setMethod(HTTP_POST | HTTP_PUT); handler->onRequest([](AsyncWebServerRequest *request, JsonVariant &json) { serializeJson(json, Serial); AsyncMessagePackResponse *response = new AsyncMessagePackResponse(); JsonObject root = response->getRoot().to(); root["hello"] = json.as()["name"]; response->setLength(); request->send(response); }); server.addHandler(handler); #endif server.begin(); } // not needed void loop() { delay(100); }