Incorrect lint error for optional non null arguments

[Farzadd]

This issue pertains to the following package(s):

• [ ] GraphQL Playground - Electron App
• [ ] GraphQL Playground HTML
• [X] GraphQL Playground
• [ ] GraphQL Playground Express Middleware
• [ ] GraphQL Playground Hapi Middleware
• [ ] GraphQL Playground Koa Middleware
• [ ] GraphQL Playground Lambda Middleware

What OS and OS version are you experiencing the issue(s) on?

macOS High Sierra, Chrome

What version of graphql-playground(-electron/-middleware) are you experiencing the issue(s) on?

graphql-playground-html 1.6.6

What is the expected behavior?

No error should be thrown by linter since the argument has a default value. The query is valid and runs successfully.

What is the actual behavior?

Lint error: Field "foo" argument "bar" of type String! is required but not provided

What steps may we take to reproduce the behavior?

Add a query to the schema that has a optional (default value) not null argument: type Query { foo(bar: String! = "some value") }

Try to query it via Playground without providing a value for foo: { foo { ... } }

Please provide a gif or image of the issue for a quicker response/fix.

[Farzadd]

This issue was resolved by graphql in version 14.0.0 (current version is 14.1.1 however the version in use by playground is 0.11.7). Updating the graphql dependency will address it.

[huv1k]

Hey @Farzadd thanks for reporting that, we need to upgrade graphql version soon, but it will take some time.