Rework directory structure

Co-authored-by: Héctor Hurtado <hector.hurtado@bbva.com>

internal/client/get.go

@@ -0,0 +1,30 @@
+package client
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+)
+
+func getReason(r *http.Response) string {
+	return strings.Join(strings.Split(r.Status, " ")[1:], " ")
+}
+
+//GetData will perform the request and write the results on the provided writer
+func GetData(host, id, path string, wr io.Writer) error {
+	url := host + "/handlers/" + id + path
+
+	res, err := http.Get(url)
+	if err != nil {
+		return err
+	}
+	defer res.Body.Close()
+
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		return errors.New(getReason(res))
+	}
+
+	_, err = io.Copy(wr, res.Body)
+	return err
+}