REST-Sensor not visible

Configuration
1

unfortunately, i fail with a very simple rest sensor that is supposed to retrieve a simple html text. Although I have already reloaded the REST-entities several times, neither the new sensors nor any error message appear.
What am I doing wrong?

- platform: rest
  name: "DWD-Vorhersage-heute"
  scan_interval: 300
  resource: "https://opendata.dwd.de/weather/text_forecasts/html/VHDL50_DWSG_LATEST_html"
  method: GET
- platform: rest
  name: "DWD-Vorhersage-morgen"
  scan_interval: 300
  resource: "https://opendata.dwd.de/weather/text_forecasts/html/VHDL51_DWSG_LATEST_html"
  method: GET
2

Try restarting home assistant instead of reloading.

Look in Settings → System → Logs. Do you see warnings about states exceeding the maximum length of 255 characters?

Those resources return a lot of text and states can only be 255 characters long.

3

Thank you very much for the tip! In fact, that was exactly the error (State max length is 255 characters.) Is there perhaps another solution for this? I would like to process the texts somehow.

4

It depends on what you want to do. If you are looking at getting data from the HTML content, then you would likely want to use Scrape. Read more here [SOLVED] Need help to scrape data from website - #3 by sender

5

Right, that should probably be the best alternative. Thank you!

Edit: it works like:

- resource: https://opendata.dwd.de/weather/text_forecasts/html/VHDL50_DWSG_LATEST_html
  scan_interval: 300
  sensor:
    - unique_id: dwd-vorhersage-heute
      name: DWD-Vorhersage heute
      select: "*"
      value_template: |
        {{ value }}

But: But unfortunately, the German umlauts are recognised incorrectly. Does anyone have an idea how to fix this?
Böen → B�en

And: i can only retrieve a page with multiscrape that contains <255 characters. For the other pages I get a rest error for multiscrape: max. 255 characters.