1 files changed, 64 insertions, 0 deletions
diff --git a/libraries/ESP_Async_WebServer/examples/RateLimit/RateLimit.ino b/libraries/ESP_Async_WebServer/examples/RateLimit/RateLimit.ino
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+++ b/libraries/ESP_Async_WebServer/examples/RateLimit/RateLimit.ino
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+// SPDX-License-Identifier: LGPL-3.0-or-later
+// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
+
+//
+// Show how to rate limit the server or some endpoints
+//
+
+#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>
+
+static AsyncWebServer server(80);
+static AsyncRateLimitMiddleware rateLimit;
+
+void setup() {
+  Serial.begin(115200);
+
+#ifndef CONFIG_IDF_TARGET_ESP32H2
+  WiFi.mode(WIFI_AP);
+  WiFi.softAP("esp-captive");
+#endif
+
+  // maximum 5 requests per 10 seconds
+  rateLimit.setMaxRequests(5);
+  rateLimit.setWindowSize(10);
+
+  // run quickly several times:
+  //
+  // curl -v http://192.168.4.1/
+  //
+  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
+    request->send(200, "text/plain", "Hello, world!");
+  });
+
+  // run quickly several times:
+  //
+  // curl -v http://192.168.4.1/rate-limited
+  //
+  server
+    .on(
+      "/rate-limited", HTTP_GET,
+      [](AsyncWebServerRequest *request) {
+        request->send(200, "text/plain", "Hello, world!");
+      }
+    )
+    .addMiddleware(&rateLimit);  // only rate limit this endpoint, but could be applied globally to the server
+
+  server.begin();
+}
+
+// not needed
+void loop() {
+  delay(100);
+}