add the callbacks so it will compile copy/pasted

README.md

@@ -289,6 +289,18 @@ const char* password = "your-pass";
 const char* http_username = "admin";
 const char* http_password = "admin";
 
+void onRequest(AsyncWebServerRequest *request){
+  //Handle Unknown Request
+  request->send(404);
+}
+
+void onBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total){
+  //Handle body
+}
+
+void onUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
+  //Handle upload
+}
 
 void setup(){
   Serial.begin(115200);