Not sure what you mean - > it may require annotation of the SHACL path, or an automated rule, to bind > the graphql output data element to a URI
What URI? There is no property URI to bind to. It is a path that either goes in inverse of a single property or traverses a chain of properties. The chain can be of variable length. Sent from my iPhone > On Mar 3, 2020, at 2:22 AM, Rob Atkinson <robatkinson...@gmail.com> wrote: > > well I'll leave it there having pointed out there is movement in this > direction in some places - its obviously your choice :-) > > re the SHACL paths issue - may need a little bit more of an example, but it > may require annotation of the SHACL path, or an automated rule, to bind the > graphql output data element to a URI - but its perfectly legal to leave these > unbound too - you just wont be able to convert those bits to RDF in the > client (if you really wanted to - we're all sceptical about that). Anyway - > this is the sort of thing I was suggesting could be left to customisable > configuration, do the simple things first. > > > >> On Tuesday, 3 March 2020 17:35:21 UTC+11, Irene Polikoff wrote: >> As an option, one could in the future provide JSON-LD context. I am saying >> “as an option” because I would not want to force it on applications and >> users that are not interested in it and will find it confusing or >> overcomplicating. >> >> With respect to what makes sense and whether this is something important >> enough to address, - rightly or wrongly, at the moment, we do not hear about >> demand for this, while we do get a lot of demand and many requests for other >> things. This could change in the future as the application development >> patterns shift. We always need to make sure we are assigning requests for >> features the right priority. Practically speaking, it is very important to >> focus on what most or, at least, a sizable percentage of customers need >> today. >> >> Further, what are your thoughts about how SHACL paths would be addressed? >> They are quite common - for inverses, for example. . >> >>> On Mar 2, 2020, at 11:56 PM, Rob Atkinson <robatki...@gmail.com> wrote: >>> >>> >>> An example of an API that moved from JSON to JSON-LD : >>> >>> https://fiware-datamodels.readthedocs.io/en/latest/ngsi-ld_howto/index.html >>> >>> why? - not because they need clients to be RDF aware, but because they need >>> data transfers to be semantically explicit - even if it just means >>> unambiguous data values, and Linked Data as a basic client behaviour that >>> requires no extar RDF overhead. >>> >>> Its true that there is no Web of Data functioning really, and there are >>> ad-hoc data models everywhere and dumb clients - but that doesnt mean thats >>> the only implementation pattern that makes sense. >>> >>> Would I build an API for a Web context these days without using JSON as a >>> payload ... no! Would I use JSON without enabling Linked Data - no! >>> >>> I dont understand why it would make sense to be crippling APIs by throwing >>> away semantic information that can be added with so little overhead, and >>> without compromising backwards compatibility. Sure we could just build >>> wrappers that fix this, but they are unlikely to be as efficient and add a >>> burden to find or wrtie such extensions. >>> >>> >>> >>>> On Tuesday, 3 March 2020 12:20:13 UTC+11, Irene Polikoff wrote: >>>> This was my thinking as well. >>>> >>>> Annotating GraphQL query result with JSON-LD would seem to be useful only >>>> for converting JSON returned by the GraphQL query back to RDF. In our >>>> experience, however, GraphQl queries are used by applications that are not >>>> RDF aware. They do not need to get RDF back from the GraphQL endpoint. We >>>> have not, so far, received any requirements (or even questions) about >>>> supporting JSON-LD context in GraphQL. >>>> >>>> I would also not go as far as describe GraphQL as “the main query >>>> interface” in TopBraid EDG. SPARQL is and always has been fully supported. >>>> I think GraphQL is the main and preferred interface for the traditional >>>> client-side applications. >>>> >>>> >>>>> On Mar 2, 2020, at 6:52 PM, Holger Knublauch <hol...@topquadrant.com> >>>>> wrote: >>>>> >>>>> Hi Rob, >>>>> >>>>> I am aware that other GraphQL implementations on top of RDF do support >>>>> JSON-LD context generation. Technically, this might be doable, although >>>>> there are some cases like sh:path expressions where there is no single >>>>> property or triple that we could map to, and of course no JSON-LD would >>>>> be able to map partial queries like { label } without also having a uri >>>>> field. >>>>> >>>>> The thing I would like to better understand is what would clients do with >>>>> that info. My assumption is that we use GraphQL to "flatten" a graph into >>>>> a tree structure for easy consumption by rather traditional client-side >>>>> code, e.g. written in React or other JS libraries. Would those clients >>>>> really have a full RDF-based API, and would they be able to make sense of >>>>> the partial graphs that would be returned by the server? If yes, isn't a >>>>> SPARQL CONSTRUCT a more natural way to produce graphs, instead of relying >>>>> on another set of intermediate steps? >>>>> >>>>> Holger >>>>> >>>>> >>>>> >>>>>> On 3/03/2020 09:22, Rob Atkinson wrote: >>>>>> >>>>>> to fully "support" JSON-LD it would be required to support it in the >>>>>> main query interface - i.e. the GraphQL JSON response should be >>>>>> decorated with a JSON-LD context statement that binds the available URI >>>>>> identifiers to the graphql schema elements - after all the graphql >>>>>> schema is generated from the underlying SHACL models. >>>>>> >>>>>> For interoperability such JSON-LD contexts should be modular of course - >>>>>> if a model imports SKOS then the JSON-LD context should import a SKOS >>>>>> context rather than dump it out. If this is too much work in the short >>>>>> term, I'd suggest that the injection of a context via a URI referencing >>>>>> another service which constructs the context for a given graphql schema >>>>>> - and if necessary leave it empty, but allow this to be customised by >>>>>> users to be more modular in future. This at least establishes an >>>>>> architecture which can be evolved to seamlessly allow more natively >>>>>> supplied detail in future, without too much effort in the short term. >>>>>> >>>>>> >>>>>> >>>>>>> On Tuesday, 3 March 2020 09:29:44 UTC+11, R. U.S. wrote: >>>>>>> Hi, I've been working with Topbraid for a while and now I need to >>>>>>> support JSON-LD files (importing/editing/exporting). What is the >>>>>>> current support for it? Can you point me to the documentation for this? >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "TopBraid Suite Users" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>>> an email to topbrai...@googlegroups.com. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/topbraid-users/bbe0d0c2-6326-4dda-a107-703a3cdef750%40googlegroups.com. >>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google Groups >>>>> "TopBraid Suite Users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send an >>>>> email to topbrai...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/topbraid-users/2f99615b-75f8-7820-0d3c-3bd9d77f96c0%40topquadrant.com. >>>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "TopBraid Suite Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to topbrai...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/topbraid-users/903ce7e7-012e-4bf2-af74-62439e539b5d%40googlegroups.com. >> > > -- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to topbraid-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/topbraid-users/edd186f6-26ae-4959-bfcb-ca5422790674%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. 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