Question: is it possible to include the graphql type in the scalar "serialize" function

In the graphql-relay-js library they have a function to declare a GlobalID for a type.

export function globalIdField(
typeName?: ?string,
idFetcher?: (object: any, info: GraphQLResolveInfo) => string
): GraphQLFieldConfig {
return {
name: 'id',
description: 'The ID of an object',
type: new GraphQLNonNull(GraphQLID),
resolve: (obj, args, info) => toGlobalId(
typeName != null ? typeName : info.parentType.name,
idFetcher ? idFetcher(obj, info) : obj.id
)
};
}

This is used by relay to ensure you don't expose raw database ids to the public, and also to determine a node type based on it's id (since the id is hashed along with it's type).

Is there anyway to check the graphql type for an object in the serialize function of a scalar definition, so that i can encode these ID with their appropriate type?

e.g
scalar GlobalID

GlobalID: {
serialize(id, nodeType) {
return toGlobalId(nodeType, id);
}
}

Thanks!

Start by reviewing the GraphQL scalar serialize API and the graphql-relay-js globalIdField example in the issue. Determine whether serialize receives the parent GraphQL type or enough context to encode the ID, and identify the project entry point or tests that would need to demonstrate the behavior. Done means the supported behavior or limitation is established and documented.