My first OpenWebUI tool

First, about my setup, the host system runs Windows 11, and all tools are installed in a Windows 11 virtual machine using VMware.

On the host system, to fully utilize the available resources, I installed Ollama with the qwen2.5-coder model, as well as OpenWebUI via Docker.

Inside the VMware environment, I created an ASP.NET Core Web API project in Visual Studio, which automatically generated the WeatherForecastController.

Since Docker is running on the host system and the WeatherForecastController is running inside VMware, I changed the settings of my ASP.NET Core Web API to allow access from outside the virtual machine.

My \Properties\launchSettings.json file looks like this:

{
  "$schema": "https://json.schemastore.org/launchsettings.json",
  "profiles": {
    "http": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": false,
      "applicationUrl": "http://localhost:5259",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    },
    "https": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": false,
      "applicationUrl": "http://0.0.0.0:7216;https://0.0.0.0:7217",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

This means that the controller was accessible via the following endpoint:

https://192.168.2.50:7217/WeatherForecast

In OpenWebUI tools, I wrote:

import requests
import urllib3

class Tools:
    def today_from_csharp_http(self) -> str:
        """
        Get the current weather.
        """
        url = "https://192.168.2.50:7217/WeatherForecast"
        try:
            r = requests.get(url, timeout=5, verify=False)
            r.raise_for_status()

            data = r.json()
            if not isinstance(data, list) or len(data) == 0:
                return f"Unexpected JSON: {type(data).__name__}: {data}"

            first = data[0]
            date = first.get("date")
            summary = first.get("summary")
            temp = first.get("temperatureC")

            return f"OK: {date} | {summary} | {temp}°C"
        except Exception as e:
            return f"HTTP request failed: {e}"

The tool must be enabled for this model by checking the corresponding tool checkbox.