Extracting plain text from remote URL?

Configuration
1

Hello all - I have a value that is accessible by URL, but the response is just a plain text file, not JSON, so I can’t use the REST component.

I can easily write my own code to fetch a URL and search for a regular expression, or even cobble together something with curl and grep, but I just wondered if there was anything out there to save me reinventing the wheel?

The URL is here if anyone wants to see the format.

Many thanks!
Quentin

2

The REST sensor can work with plain text, too. Just use value instead of value_json in your value_template. And for searching, you can use regex_findall_index. E.g., if you wanted to get the value after Temperature, you could do something like this:

{{ (value|regex_findall_index('Temperature:\s*[0-9.]*\s*[CF]')).split(' ',1)[-1].strip() }}
3

Ah, brilliant - thanks. I’m not sure that’s much clearer in the end than my use of the command_line sensor:

curl -s <URL> | grep -m 1 'Temperature:' | cut -d' ' -f 3

but it certainly involves fewer processes! Many thanks!

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