Adding http/get.go

http/get.go

@@ -0,0 +1,27 @@
+package http
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+)
+
+// Perform a HTTP Get request.
+func Get(ctx context.Context, url string, headers http.Header) (*http.Response, error) {
+	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header = headers
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return nil, fmt.Errorf("HTTP Response: %s", resp.Status)
+	}
+	return resp, nil
+}