Winappdriver: API /session/:sessionId/click not work

[camillake]

OS: windows 10
windriver: v1.0 Release
language: appium python client.

error message: Missing Command Parameter: element

looks like I must assign an element for touch/click event.
Is it possible that I just send the coordinate without specifying element ?

If I specify an element, the center of the element always be clicked no matter what coordinate I assign.

[timotiusmargo]

Hi @camillake,

I'm not sure what request and payload the Appium Python Client send to WinAppDriver to get the error you reported above. Can you include the WinAppDriver.exe command log that gave you the error?

At the same time, can you try our WebDriverAPI Mouse C# sample test code below that should perform the session/:sessionId/click command? E.g.:

```c#
// Implicitly invoke /session/:sessionId/moveto and /session/:sessionId/click
WindowsElement num8Button = session.FindElementByAccessibilityId("num8Button");
session.Mouse.Click(num8Button.Coordinates);

// Explicitly invoke /session/:sessionId/moveto and then /session/:sessionId/click on the current position
WindowsElement clearButton = session.FindElementByAccessibilityId("clearButton");
session.Mouse.MouseMove(clearButton.Coordinates);
session.Mouse.Click(null);

As far as I know `element` **is not** a required parameter for `session/:sessionId/click` command. For [session/:sessionId/touch/click](https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol#sessionsessionidtouchclick) on the other hand, `element` **is** a required parameter that you need to provide. However, you can absolutely do a combination of [session/:sessionId/touch/down](https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol#sessionsessionidtouchdown) and [session/:sessionId/touch/up](https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol#sessionsessionidtouchup) in order to simulate similar click action. An example can be found on the following snippet taken from https://github.com/Microsoft/WinAppDriver/blob/v1.0/Tests/WebDriverAPI/TouchDownMoveUp.cs#L75:

```c#
touchScreen.Down(clearButtonLocation.X, clearButtonLocation.Y);
touchScreen.Up(clearButtonLocation.X, clearButtonLocation.Y);

[camillake]

@timotiusmargo
Thanks for your soon reply.
The combination "touch/down & touch/up" works.
I use selenium client to send that request because Appium not implement touch/down & touch/up event.