Description

The server used to throw 500 Internal error when null value is provided against input fields in <table-name>_order_by input object.

Query:-

query {
  article(order_by: [{id: null}]) {
    title
  }
}

Response:-

{
  "errors": [
    {
      "extensions": {
        "path": "$.selectionSet.article.args.order_by",
        "code": "unexpected"
      },
      "message": "unexpected null for ty 'order_by'"
    }
  ]
}

This PR fixes this issue.

Affected components

• Server
• Tests

Related Issues

fixes #2754

Solution and Design

• Consider Maybe values for all input fields under order_by input. The value is Nothing when null is provided. Omit the input if Nothing is found.

Steps to test and verify

Follow the test case added in this PR