call createFormFields in go func()

del coment

misc.go

@@ -155,14 +155,16 @@ func postLocalWithMultipartResponse(ctx context.Context, client httpClient, meth
 func postWithMultipartResponse(ctx context.Context, client httpClient, path, name, fieldname, token string, values url.Values, r io.Reader, intf interface{}, d Debug) error {
 	pipeReader, pipeWriter := io.Pipe()
 	wr := multipart.NewWriter(pipeWriter)
-	err := createFormFields(wr, values)
-	if err != nil {
-		return err
-	}
 
 	errc := make(chan error)
 	go func() {
 		defer pipeWriter.Close()
+		defer wr.Close()
+		err := createFormFields(wr, values)
+		if err != nil {
+			errc <- err
+			return
+		}
 		ioWriter, err := wr.CreateFormFile(fieldname, name)
 		if err != nil {
 			errc <- err
@@ -183,7 +185,6 @@ func postWithMultipartResponse(ctx context.Context, client httpClient, path, nam
 	if err != nil {
 		return err
 	}
-	wr.Close()
 	req.Header.Add("Content-Type", wr.FormDataContentType())
 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
 	resp, err := client.Do(req)

remotefiles.go

@@ -252,9 +252,7 @@ func (api *Client) UpdateRemoteFile(fileID string, params RemoteFileParameters)
 // For more details see the UpdateRemoteFile documentation.
 func (api *Client) UpdateRemoteFileContext(ctx context.Context, fileID string, params RemoteFileParameters) (remotefile *RemoteFile, err error) {
 	response := &remoteFileResponseFull{}
-	values := url.Values{
-		"token": {api.token},
-	}
+	values := url.Values{}
 	if fileID != "" {
 		values.Add("file", fileID)
 	}
@@ -276,6 +274,7 @@ func (api *Client) UpdateRemoteFileContext(ctx context.Context, fileID string, p
 	if params.PreviewImageReader != nil {
 		err = postWithMultipartResponse(ctx, api.httpclient, api.endpoint+"files.remote.update", "preview.png", "preview_image", api.token, values, params.PreviewImageReader, response, api)
 	} else {
+		values.Add("token", api.token)
 		response, err = api.remoteFileRequest(ctx, "files.remote.update", values)
 	}