Help writing expression to filter data

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1

I am trying to build a weather super tile and need some help writing an expression to filter data.

I have a rule that sets a variable based on the edge weather device attribute.
I then want to take that variable and filter for specific words like cloud, rain, clear, thunderstorm, etc.
Then I want to concat that with day or night based on the time of day. My goal is to end up with a final variable of day-clear or night-clear etc. so that I can set an icon based on the weather.

My rule so far looks like this

Weather device updates
If time is before sunset
Then
set $weatherSummary to device attribute, summary value (this works) // clear sky
set $weatherSummary using expression to look for specific word clear (stuck here)
set $weatherSummary using expression
time=“day-”
concat(time, filtered response) // day-clear

Else
set $weatherSummary to device attribute, summary value (this works) // clear sky
set $weatherSummary using expression to look for specific word clear (stuck here)
set $weatherSummary using expression
time=“night-”
concat(time, filtered response clear) // night-clear

I appreciate any help! Thanks

2

Are you using OpenWeather API?

3

I’m actually pulling this from the Smartthings edge weather driver but I can use openweather api 2.5 or 3

4

Ok, so if I understand correctly, you can grab the specific icon I.D from your API call, then the easiest way is run your rule of that. Plus you can also create a variable and have it say whatever you want, based on the current icon

Be!ow is OpenWeather Icons and very quick examples

Screenshot_20230818-063645
Screenshot_20230818-063645750Ă—1038 49 KB

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Screenshot_20230818-073227
Screenshot_20230818-0732271102Ă—1106 107 KB

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Screenshot_20230818-083529
Screenshot_20230818-0835291108Ă—1103 105 KB

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Screenshot_20230818-083925
Screenshot_20230818-0839251085Ă—1073 110 KB

1 Like
5

What is the api call for grabbing the icon id?

6

Another option is to grab the weather ID or main vs the summary and looking for specific words. ID 800 is clear.

image
image1170Ă—680 28 KB

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7

What do the attributes and values look like? Otherwise the api approach works well enough.

8

The value for summary is the weather description // clear sky

I’m not opposed to using the api call but I’m having trouble figuring out the response data.
Here’s what I’m trying

Screenshot_20230818-083748_Chrome
Screenshot_20230818-083748_Chrome1080Ă—2280 152 KB

9

This is what I was originally asking for help with. I couldnt figure out how to look for specific words

10

So go grab the Main or ID, you should be able to do something like this in an expression

forecast = $context.response.data.daily.0.weather.0.main
Or
forecast = $context.response.data.daily.0.weather.0.id

I’m not next to a computer but once I am I’ll see if I can build a rule to put it all together.

1 Like
11

@josh Will you take a look and tell me what I’m doingwrong on this api call?

https://api.openweathermap.org/data/2.5/weather?lat=33.3698166&lon=-111.6816816&appid=*my-api-key*

Here is what is returned in a browser

{
  "coord": {
    "lon": -111.6817,
    "lat": 33.3698
  },
  "weather": [
    {
      "id": 803,
      "main": "Clouds",
      "description": "broken clouds",
      "icon": "04d"
    }
  ],
  "base": "stations",
  "main": {
    "temp": 305.73,
    "feels_like": 306.28,
    "temp_min": 304.37,
    "temp_max": 307.21,
    "pressure": 1015,
    "humidity": 40
  },
  "visibility": 10000,
  "wind": {
    "speed": 4.12,
    "deg": 140
  },
  "clouds": {
    "all": 75
  },
  "dt": 1692376322,
  "sys": {
    "type": 2,
    "id": 2008467,
    "country": "US",
    "sunrise": 1692363082,
    "sunset": 1692411010
  },
  "timezone": -25200,
  "id": 5295903,
  "name": "Gilbert",
  "cod": 200
}

I’ve tried and all return null
$context.response.data.current.weather.icon
$context.response.data.current.weather.0.icon

What am I missing?

13

These return value: null as well

14

That’s odd. They work for me. I’m using one call 3.0 but I don’t think that makes a difference.

Can you post a screenshot of your rule?

16

It looks like you are using a different API than other people have mentioned, so the returned data format is different.

As such, you would need to use the appropriate path to an item you’re interested in. There’s a brief explanation on traversing JSON trees here.

Otherwise, I might recommend using something like the following to make it easier to find the appropriate path:

You can paste your JSON response in the left pane, then expand and select your desired item on the right and it will show you the appropriate path. Just replace the x in their path with $context.response.data.

Almost. There’s no top level property called “current” in the API response you’re using. It’s just weather → 0 → icon

2 Likes
17

Thanks everyone for all the help. This is what I was able to come up with which works perfect for our needs. The icons changes based on day/night/condition.

image

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