MMM-DBF does not work, no error messages

sletrabf

I installed the module MMM-ViewNotifications and then I added several notifications to the file MMM-DBF.js, see: https://pastebin.com/YZEYgPpA

Now the outcome is as follows:
showApp: true,

The message “MMM_DBF_LOADED” is not shown. From my understanding this means that start() is not being (fully) executed?
The following messages are shown (in this order): MMM_DBF_GENERATING_URL, MMM_DBF_IFRAME_URL_GENERATED, MMM_DBF_ERROR_PROCESSING_DATA.

showApp: false,

The message “MMM_DBF_LOADED” is not shown. From my understanding this means that start() is not being (fully) executed?
Only the following message is shown: MMM_DBF_ERROR_PROCESSING_DATA

So, from my understanding, the error occurs here, possibly in the line await fetch (urlApi):

  async getData() {
    const self = this;
    const urlApi = `${this.generateUrl()}&mode=json&version=3`;
    const dataRequest = await fetch(urlApi);

    if (!dataRequest.ok) {
      // Show that the data request is being processed
      this.sendNotification("MMM_DBF_ERROR_PROCESSING_DATA", { message: '[MMM-DBF] Data processing returned an error.'});
      let message = `An error has occurred: ${dataRequest.status}`;
      if (dataRequest.status === 300) {
        message += " - Ambiguous station name.";
      }
      throw new Error(message);
    }
    else {
      const data = await dataRequest.json();
      // Show that the data request is being processed
      this.sendNotification("MMM_DBF_START_PROCESSING_DATA", { message: '[MMM-DBF] Data processing started.'});
      self.processData(data);
    }
    self.scheduleUpdate(self.config.retryDelay);
  },

I’m somehow not able to see the actual error that happened. Could you maybe please point out where I have to look for the value of dataRequest.status?

Thanks in advance!
Best regards,
sletrabf

sdetweil

@sletrabf open the developers window

ctrl-shift-i
select the console tab
enter a unique part of the module name in the filter field, dbf

and see what you see