1 files changed, 26 insertions, 0 deletions
diff --git a/mastodon/mastodon.go b/mastodon/mastodon.go
index ff86d2b..22f5a53 100644
--- a/mastodon/mastodon.go
+++ b/mastodon/mastodon.go
@@ -83,6 +83,32 @@ func (c *Client) doAPI(ctx context.Context, method string, uri string, params in
 			return err
 		}
 		ct = mw.FormDataContentType()
+	} else if file, ok := params.(*multipart.FileHeader); ok {
+		f, err := file.Open()
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		var buf bytes.Buffer
+		mw := multipart.NewWriter(&buf)
+		part, err := mw.CreateFormFile("file", filepath.Base(file.Filename))
+		if err != nil {
+			return err
+		}
+		_, err = io.Copy(part, f)
+		if err != nil {
+			return err
+		}
+		err = mw.Close()
+		if err != nil {
+			return err
+		}
+		req, err = http.NewRequest(method, u.String(), &buf)
+		if err != nil {
+			return err
+		}
+		ct = mw.FormDataContentType()
 	} else if reader, ok := params.(io.Reader); ok {
 		var buf bytes.Buffer
 		mw := multipart.NewWriter(&buf)