Create scalar with object value

[KennethGomez]

I've created without issues a GraphQLScalar that admits JSON from serde_json but when using it for queries I get the following error:

{
  "error": {
    "errors": [
      {
        "message": "Variable \"$obj\" got invalid value. Expected \"JsonScalar\", found object.",
        "locations": [
          {
            "line": 1,
            "column": 8
          }
        ]
      }
    ]
  }
}

Query:

query($obj:JsonScalar!){
  getAccounts(where: {
    properties: {
      _eq: $obj
    }
  }) {
    _key
    firstName
    lastName
  }
}

Query variables:

{ "obj": {"a": 1, "b": "c"} }

How can I actually define that JsonScalar is an alias for objects for GraphQL?

[ilslv]

@KennethGomez from GraphQL spec

Scalar types represent primitive leaf values in a GraphQL type system. GraphQL responses take the form of a hierarchical tree; the leaves of this tree are typically GraphQL Scalar types (but may also be Enum types or null values).

That means you should provide following query variable:

{ "obj": "{\"a\": 1, \"b\": \"c\"}" }