Monitor go-restful in Go Applications with Atatus Go Agent

Installation steps

Install Atatus Go Agent and framework module

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```
go get go.atatus.com/agent
go get go.atatus.com/agent/module/atrestful
```

Set up tracer and add Atatus middleware

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import (
    "github.com/emicklei/go-restful"

    "go.atatus.com/agent"
    "go.atatus.com/agent/module/atrestful"
)

func main() {
    // Initialize Atatus tracer using environment variables
    tracer := atatus.DefaultTracer
    tracer.Service.LicenseKey = os.Getenv("ATATUS_LICENSE_KEY")
    tracer.Service.AppName = os.Getenv("ATATUS_APP_NAME")
    tracer.Service.Tracing = os.Getenv("ATATUS_TRACING") 
    tracer.Service.Analytics = os.Getenv("ATATUS_ANALYTICS") 

    // Apply Atatus filter middleware
    restful.Filter(atrestful.Filter())

    // Setup WebService and route
    var ws restful.WebService
    ws.Path("/things")
    ws.Route(ws.GET().To(handleRequest))

    // Add WebService to default container
    restful.Add(&ws)

    // Start HTTP server (example on port 8080)
    http.ListenAndServe(":8080", nil)
}

func handleRequest(req *restful.Request, resp *restful.Response) {
    // The context from req.Request.Context() should be propagated to downstream operations,
    // such as database queries and external HTTP API calls.

     ctx:= req.Request.Context()
    _ = db.QueryContext(ctx, "SELECT 'Atatus!'").Scan(&greeting)
}

Clean Up and Sync Dependencies

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```
go mod tidy
```
Run the Application

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```
go run main.go
```