Generate "problem" entry when syntax is fine but query doesn't validate against schema

[ntziolis]

While intellisense is provided during editing it there there are cases where somebody might slip in a typo or simply a field name has changed.

In these cases it would be great to generate a "problem" entry just like its already done when systax is checked.

Happy to help if you give me some pointers. Not that deep into language services.

[Quramy]

It seems a nice feature 😄

[tonyxiao]

Would love this as well!

[ntziolis]

As we couldn't live without this, we ended up using the GraphQL for vscode plugin which now provides both typeahead as well as linting in both .graphql file and gql tags.
It's a bit clunky to setup but right now its only tooling that gives you all of the above. @Quramy I'd really love to use the typescript one as right now i'm running like 5 different watchers, but sadly by design it only works with typescript files :)