Pass mutation variables when calling executeMutation

[baransu]

As shown in this example, mutation variables are passed when hook is created. https://github.com/FormidableLabs/reason-urql/blob/master/examples/3-mutation/src/Dog.re#L66

In my use case I want to create mutation hook at top of the component but pass variables later (for example from form submission callback function). Does reason-urql support it. I cannot find any documentation or example about such case.

let (_, executeSignInMutation) = Hooks.useMutation();

let form =
  Form.useForm(~onSubmit=(state, _) =>
    executeSignInMutation(
      ~request=
        Mutations.SignIn.make(
          ~email=state.email,
          ~password=state.password,
          (),
        ),
    )
    |> ignore
  );

[gugahoa]

You have to pass the variables during the request creation, and pass that to the hook. Here's an example: https://gist.github.com/gugahoa/b959b7d0b98b87cc1822b6754b85fa34

[baransu]

Thank you for the example. Could you show how its possible with reformality: https://github.com/MinimaHQ/re-formality/blob/master/README.md

It seems super inconvenient to handle it way you show because you have to define your hook earlier than callback where you don’t have the data yet if you don’t control your state manually.

[gugahoa]

In this case it's better to use https://github.com/FormidableLabs/reason-urql/blob/v1.2.0/src/UrqlClient.re#L319

[baransu]

That's what I was looking for. Thanks!