How can you extract query parameters from the URL in a Go HTTP handler?

By using the http.Query() function.
By accessing r.URL.Query() in the request object.
By parsing the request body.
By defining custom route parameters in the handler struct.

To extract query parameters from the URL in a Go HTTP handler, you can access the r.URL.Query() method on the http.Request object, where r is the request parameter typically provided to the ServeHTTP method. This method returns a map of query parameters, allowing you to retrieve and use the values as needed in your handler logic.

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