Merge pull request esphome#8 from ESP32Async/issue-6

doc: Update example for issue esphome#6

Author: mathieucarbou

examples/SimpleServer/SimpleServer.ino

@@ -183,10 +183,6 @@ const char* SSE_HTLM PROGMEM = R"(
 </html>
 )";
 
-void notFound(AsyncWebServerRequest* request) {
-  request->send(404, "text/plain", "Not found");
-}
-
 #if __has_include("ArduinoJson.h")
 AsyncCallbackJsonWebHandler* jsonHandler = new AsyncCallbackJsonWebHandler("/json2");
 AsyncCallbackMessagePackWebHandler* msgPackHandler = new AsyncCallbackMessagePackWebHandler("/msgpack2");
@@ -759,7 +755,23 @@ websocat: error running
   server.addHandler(msgPackHandler);
 #endif
 
-  server.onNotFound(notFound);
+  // catch any request, and send a 404 Not Found response
+  // except for /game_log which is handled by onRequestBody
+  server.onNotFound([](AsyncWebServerRequest* request) {
+    if (request->url() == "/game_log")
+      return; // response object already creted by onRequestBody
+
+    request->send(404, "text/plain", "Not found");
+  });
+
+  // https://github.com/ESP32Async/ESPAsyncWebServer/issues/6
+  // curl -v -X POST http://192.168.4.1/game_log -H "Content-Type: application/json" -d '{"game": "test"}'
+  // catch any POST request and send a 200 OK response
+  server.onRequestBody([](AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) {
+    if (request->url() == "/game_log") {
+      request->send(200, "application/json", "{\"status\":\"OK\"}");
+    }
+  });
 
   server.begin();
 }

src/WebHandlers.cpp

@@ -308,6 +308,7 @@ void AsyncCallbackWebHandler::handleUpload(AsyncWebServerRequest* request, const
     _onUpload(request, filename, index, data, len, final);
 }
 void AsyncCallbackWebHandler::handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) {
+  // ESP_LOGD("AsyncWebServer", "AsyncCallbackWebHandler::handleBody");
   if (_onBody)
     _onBody(request, data, len, index, total);
 }

src/WebRequest.cpp

@@ -141,6 +141,7 @@ void AsyncWebServerRequest::_onData(void* buf, size_t len) {
           }
         }
         if (!_isPlainPost) {
+          // ESP_LOGD("AsyncWebServer", "_isPlainPost: %d, _handler: %p", _isPlainPost, _handler);
           if (_handler)
             _handler->handleBody(this, (uint8_t*)buf, len, _parsedLength, _contentLength);
           _parsedLength += len;

src/WebServer.cpp

@@ -153,7 +153,7 @@ void AsyncWebServer::_attachHandler(AsyncWebServerRequest* request) {
       return;
     }
   }
-
+  // ESP_LOGD("AsyncWebServer", "No handler found for %s, using _catchAllHandler pointer: %p", request->url().c_str(), _catchAllHandler);
   request->setHandler(_catchAllHandler);
 }