Bug: Extra input fields are not filtered out before send to the server

[karatakis]

Prerequisites

• [X] I have checked the existing issues to ensure this is not a duplicate.
• [X] I am running the latest version of Tailcall.

Describe the bug

When I specify an InputField and call the query with an extra input parameter Tailcall does not filter out the extra parameter and passes it over to the remote server.

Steps to reproduce

1. Use the following GraphQL configuration

   
   schema @server(port: 8000) @upstream(baseURL: "http://localhost:8080") {
   query: Query
   }

type Query { foo(input: Bar): [Foo]! @http(method: POST, path: "/foo", body: "{{.args.input}}") }

input Bar { buzz: String! @modify(name: "fizz") }

type Foo { id: Int! alpha: String! beta: String! }

2. Run the following command `nc -l 8080`
3. Query the API
```graphql
query {
  foo (input: {fizz: "test", kazz: "tost" }) {
    id
  }
}

4. See that the requested body is

   
   POST /foo HTTP/1.1
   content-type: application/json
   accept: */*
   user-agent: Tailcall/1.0
   host: localhost:8080
   content-length: 29

{"fizz":"test","kazz":"tost"}

### Expected behavior

The `kazz` variable should be filtered out

### Actual behavior

The `jazz` variable is passed to the server without implicitly allowing Tailcall to do it.

### Environment information:

- **Operating System**: Linux Mint 21
- **Tailcall Version**: v0.1-dev
- **Rust Version**: 1.79
- **GraphQL Client/version**: webui

[karatakis]

I spotted the bug while working on https://github.com/tailcallhq/tailcall/issues/2483. I will close the issue when I make a PR for the other issue.

[github-actions[bot]]

Action required: Issue inactive for 30 days. Status update or closure in 7 days.

[github-actions[bot]]

Issue closed after 7 days of inactivity.