// SPDX-License-Identifier: LGPL-3.0-or-later // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov // // Query parameters and body parameters // #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 static AsyncWebServer server(80); static const char *htmlContent PROGMEM = R"( POST Request with Multiple Parameters

















)"; static const size_t htmlContentLength = strlen_P(htmlContent); void setup() { Serial.begin(115200); #ifndef CONFIG_IDF_TARGET_ESP32H2 WiFi.mode(WIFI_AP); WiFi.softAP("esp-captive"); #endif // Get query parameters // // curl -v http://192.168.4.1/?who=Bob // server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) { if (request->hasParam("who")) { Serial.printf("Who? %s\n", request->getParam("who")->value().c_str()); } request->send(200, "text/html", (uint8_t *)htmlContent, htmlContentLength); }); // Get form body parameters // // curl -v -H "Content-Type: application/x-www-form-urlencoded" -d "who=Carl" -d "param=value" http://192.168.4.1/ // server.on("/", HTTP_POST, [](AsyncWebServerRequest *request) { // display params size_t count = request->params(); for (size_t i = 0; i < count; i++) { const AsyncWebParameter *p = request->getParam(i); Serial.printf("PARAM[%u]: %s = %s\n", i, p->name().c_str(), p->value().c_str()); } // get who param String who; if (request->hasParam("who", true)) { who = request->getParam("who", true)->value(); } else { who = "No message sent"; } request->send(200, "text/plain", "Hello " + who + "!"); }); server.begin(); } // not needed void loop() { delay(100); }