Arduino AsyncWebServer examples

example.cpp

server.on("/test", HTTP_GET, [](AsyncWebServerRequest *request){

  ArduinoJson::StaticJsonDocument<200> doc;
  // Add values in the document
  //
  doc["sensor"] = "gps";
  doc["time"] = 1351824120;

  // Add an array.
  //
  JsonArray data = doc.createNestedArray("data");
  data.add(48.756080);
  data.add(2.302038);

  String responceBody;
  ArduinoJson::serializeJson(doc, responceBody);

  // request->send(SPIFFS, "/index.html", String(), false, processor);
  request->send(200, "application/json", responceBody);
});


void onNotFound(AsyncWebServerRequest *request) {
  Serial.printf("NOT_FOUND: ");
  if(request->method() == HTTP_GET)
    Serial.printf("GET");
  else if(request->method() == HTTP_POST)
    Serial.printf("POST");
  else if(request->method() == HTTP_DELETE)
    Serial.printf("DELETE");
  else if(request->method() == HTTP_PUT)
    Serial.printf("PUT");
  else if(request->method() == HTTP_PATCH)
    Serial.printf("PATCH");
  else if(request->method() == HTTP_HEAD)
    Serial.printf("HEAD");
  else if(request->method() == HTTP_OPTIONS)
    Serial.printf("OPTIONS");
  else
    Serial.printf("UNKNOWN");
  Serial.printf(" http://%s%s\n", request->host().c_str(), request->url().c_str());

  if(request->contentLength()) {
    Serial.printf("_CONTENT_TYPE: %s\n", request->contentType().c_str());
    Serial.printf("_CONTENT_LENGTH: %u\n", request->contentLength());
  }

  int headers = request->headers();
  int i;
  for(i=0; i<headers; i++) {
    AsyncWebHeader* h = request->getHeader(i);
    Serial.printf("_HEADER[%s]: %s\n", h->name().c_str(), h->value().c_str());
  }

  int params = request->params();
  for(i=0; i<params; i++) {
    AsyncWebParameter* p = request->getParam(i);
    if(p->isFile()) {
      Serial.printf("_FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size());
    } else if(p->isPost()) {
      Serial.printf("_POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
    } else {
      Serial.printf("_GET[%s]: %s\n", p->name().c_str(), p->value().c_str());
    }
  
  request->send(404, "text/plain", "Page not found");
}
  

server.on("/planEditorHandler", HTTP_POST, 
  [](AsyncWebServerRequest * request) {}, 
  NULL, 
  [](AsyncWebServerRequest * request, uint8_t *data, size_t len, size_t index, size_t total) {
    String jsondata;
    for (size_t i = 0; i < len; i++) {
        jsondata+=(char)data[i];
      }
    Serial.printf("size: %d, total: %d\n", len, total);
    Serial.println(jsondata);

    request->send(200, "application/json", jsondata);

  }
);
  
void web_init() {
  server.addHandler(&events);       // attach AsyncEventSource
  server.serveStatic("/", SPIFFS, "/www").setDefaultFile("index.html");
  server.onNotFound(onNotFound);
}