How to Pass variable in URL golang?

Question

I am new to go so this probably elementary. I have a function to retrieve json from a URL and need to pass a variable integer within the URL. How do append a variable onto the end of another variable? Here is my code:
	type content struct {
		StationTitle string `json:"StationTitle"`
	}

	func main() {

		resp := content{}
		getContent("http://foo.foo2.foo3=variableInteger", &resp)
		println(resp.StationTitle)
	}

	// fetch json

	func getContent(url string, target interface{}) error {
		r, err := http.Get(url)
		if err != nil {
			return err
		}
		defer r.Body.Close()

		return json.NewDecoder(r.Body).Decode(target)
	}

Gopher · Accepted Answer

Using fmt.Sprintf getContent(fmt.Sprintf("http://foo.foo2.foo3=%d", variableInteger), &resp)

Chris Gregori · Answer

I would use the net/url package to build your URL.

Go Language

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