From 368a8fc7237b7ee17c7ec06e5e5bcb7642dfa62c Mon Sep 17 00:00:00 2001
From: Chris Battarbee <chris@metoro.io>
Date: Thu, 12 Dec 2024 16:18:35 +0000
Subject: [PATCH] Add weather tool example

---
 .../get_weather_tool_server.go                | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 examples/get_weather_tool_server/get_weather_tool_server.go

diff --git a/examples/get_weather_tool_server/get_weather_tool_server.go b/examples/get_weather_tool_server/get_weather_tool_server.go
new file mode 100644
index 0000000..89b1a39
--- /dev/null
+++ b/examples/get_weather_tool_server/get_weather_tool_server.go
@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	mcp_golang "github.com/metoro-io/mcp-golang"
+	"github.com/metoro-io/mcp-golang/transport/stdio"
+	"io"
+	"net/http"
+)
+
+type WeatherArguments struct {
+	Longitude float64 `json:"longitude" jsonschema:"required,description=The longitude of the location to get the weather for"`
+	Latitude  float64 `json:"latitude" jsonschema:"required,description=The latitude of the location to get the weather for"`
+}
+
+// This is explained in the docs at https://mcpgolang.com/tools
+func main() {
+	done := make(chan struct{})
+	server := mcp_golang.NewServer(stdio.NewStdioServerTransport())
+	err := server.RegisterTool("get_weather", "Get the weather forecast for temperature, wind speed and relative humidity", func(arguments WeatherArguments) (*mcp_golang.ToolResponse, error) {
+		url := fmt.Sprintf("https://api.open-meteo.com/v1/forecast?latitude=%f&longitude=%f&current=temperature_2m,wind_speed_10m&hourly=temperature_2m,relative_humidity_2m,wind_speed_10m", arguments.Latitude, arguments.Longitude)
+		resp, err := http.Get(url)
+		if err != nil {
+			return nil, err
+		}
+		defer resp.Body.Close()
+		output, err := io.ReadAll(resp.Body)
+		if err != nil {
+			return nil, err
+		}
+		return mcp_golang.NewToolReponse(mcp_golang.NewTextContent(string(output))), nil
+	})
+	err = server.Serve()
+	if err != nil {
+		panic(err)
+	}
+	<-done
+}