add UploadMedia

status.go

@@ -201,3 +201,13 @@ func (c *Client) Search(ctx context.Context, q string, resolve bool) (*Results,
 	}
 	return &results, nil
 }
+
+// PostMedia upload a media attachment.
+func (c *Client) UploadMedia(ctx context.Context, file string) (*Attachment, error) {
+	var attachment Attachment
+	err := c.doAPI(ctx, http.MethodPost, "/api/v1/media", file, &attachment)
+	if err != nil {
+		return nil, err
+	}
+	return &attachment, nil
+}