How to specify an id when no block is defined?

[pheyvaer]

Assume you have the following query

{
  name
}

how do you select only the entities with id http://example.com/john?
When setting a block-scoped id there is like a "parent" where you can set the id (hero in the example of the link), but what do you need to do if you don't have that?

[rubensworks]

Something like this should work:

{
  id(_:'http://example.com/john')
  name
}

If it doesn't, then that should definitely become a feature :-)

[pheyvaer]

If I try that then I get GraphQLError: Syntax Error: Unexpected single quote character ('), did you mean to use a double quote (")?.

[rubensworks]

And does the double-quoted version work?

[pheyvaer]

In that case, no error is thrown, but no results are returned.

[julianrojas87]

I tried something this scenario but instead of passing the id parameter on the query, I defined it in the @context and it worked fine:

{
   "@context": { "param": "http://example.org/john" }
}
----------------------------------------------------------------------
{
   id(_:param)
   name
}

[rubensworks]

Right, I forgot about that even. This makes param a GraphQL enum, which are always seen as URIs. Thanks for sharing @julianrojas87.

In any case, the id field will always point to a URI, so it should be possible to use a string value as an IRI instead of a literal. This is in fact not a bug, but a not-yet-implemented feature.