solid/app-development

https://github.com/solid/information/blob/master/app-development.md

Dan Keith

@DoctorBud

@Vinnl_gitlab This may have already been answered above...

One thing that may help with your https://codesandbox.io/embed/reverent-fog-liiju is to use the .bundle.js files instead of the .js files. These will work via <script src=...> as in your example, and they do not assume a bundler (e.g., webpack) is necessary. I'm using the jsDeliver versions:

But the unpkg.com equivalents should work also.

In my Smartdown-on-Solid demo, I'm using LDFlex in this way, dynamically loading the bundles and then using LDFlex to query my profile and that of @RubenVerborgh

Vincent

@Vinnl_gitlab

Ah sorry @DoctorBud, the version of the code in Codesandbox you saw was where I was experimenting with unpkg indeed. I was hoping to be able to just import from the package, which was what resulted in the error before

But yeah, thanks for the .bundle hint - I might use that as a workaround to be able to use Codesandbox anyway, if they don't fix their incomplete shim

Vincent

@Vinnl_gitlab

Another question about LDFlex:

Given this code:

async function getName(webId) {
  const person = data[webId];
  const name = await person['http://xmlns.com/foaf/0.1/name'];
  return name ? name.toString() : null;
}
getName("https://www.w3.org/People/Berners-Lee/card#i").then(console.log);

I get a CORS error:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://www.w3.org/People/Berners-Lee/card. (Reason: CORS header 'Access-Control-Allow-Origin' missing).

Can I set CORS headers for ldflex? Should I?

(It did work for @RubenVerborgh WebID)

Ruben Verborgh

@RubenVerborgh

It’s the w3.org server not sending the right headers

Tim sent a mail for it

Vincent

@Vinnl_gitlab

Hmm OK, so I should just not try this on Tim's WebID?

(And I'm also wondering: why does rdflib work with Tim's WebID?)

Ruben Verborgh

@RubenVerborgh

Indeed, nothing from client side can fix this

Vincent

@Vinnl_gitlab

:+1:

Ruben Verborgh

@RubenVerborgh

(It retries without credentials)

Vincent

@Vinnl_gitlab

Ah, that's what that's for. Thanks!

Ruben Verborgh

@RubenVerborgh

(So “nothing” is inaccurate, but still not our fault 🙂)

Vincent

@Vinnl_gitlab

Yeah, I'd rather see that fixed on w3.org than those odd kind of workarounds

Vincent

@Vinnl_gitlab

And I'm back with the ldflex question of the day ^.^

I saw I can call .add() to add a value for a property. But what if I want to do that for multiple properties? I can do this:

await data[webId]['foaf:name'].add(literal(name));
await data[webId]['foaf:nick'].add(literal(nickname));

...but that executes a separate HTTP request for every call. Is there a way to batch those?

Mike Adams

@mikeadams1

I like that you can derive a URI from ldflex for the results of the query.

Just messing around with it, I put in a long request and it filled it like this: https://solid.github.io/ldflex-playground/#%5B'https%3A%2F%2Fruben.verborgh.org%2Fprofile%2F%23me'%5D.friends.firstName%5B'https%3A%2F%2Ftimbl.com%2Fprofile%2F%23me'%5D.friends.firstName%5B'https%3A%2F%2Fyngwiemalmsteen.solid.community%2Fprofile%2F%23me'%5D.friends.firstName

Dylan Martin

@OpBobbyJohnson

Uncaught (in promise) Exception in update: Error: Update: Loaded <https://jaboidougied.solid.community/profile/card>but stil can't figure out what editing protcol it supports.
Error: Update: Loaded <https://jaboidougied.solid.community/profile/card>but stil can't figure out what editing protcol it supports.
  undefined
    Error: Update: Loaded <https://jaboidougied.solid.community/profile/card>but stil can't figure out what editing protcol it supports.  undefined
        at UpdateManager.update (http://localhost:3000/static/js/0.chunk.js:153979:17)  undefined
        at http://localhost:3000/static/js/0.chunk.js:153984:16

I keep getting the error above when i try to update the data with $rdf.UpdateManager. Any ideas why this would be happening. I am trying to update my card and I am logged in on the app.

Ruben Taelman

@rubensworks

For anyone interested in React development, I've created React components for building Solid apps using GraphQL-LD: https://github.com/rubensworks/solid-react-graphql-ld.js

Michael Pigott

@mikepigott

Hi, I have a web application that generates a profile from existing LinkedIn, GitHub, Twitter, Facebook, and Google profiles. (Example: http://mpigott.solid.vip/ ) This application already generates JSON-LD of the same data, and I'd like to push that JSON-LD (or Turtle) to my Solid WebID profile. I'm feeling silly, as I cannot seem to find any example code that does this already. (I saw http://kingsley.idehen.net/public_home/kidehen/Public/Linked%20Data%20Documents/Playground/basic-html5-cors-sparul-form-sergey2.html ). Does anyone know of example code that does this already?

Jeff Zucker

@jeff-zucker

@mikepigott I'd guess you need to patch the profile with rdflib Updater or with query-ldflex set. Something like await webId[field].set(value)

Michael Pigott

@mikepigott

Thanks! I was able to get a Solid profile to show up on a page (borrowing the code from https://github.com/solid/profile-viewer-tutorial ) ... now I'll try to get what I need by following https://solid.inrupt.com/docs/manipulating-ld-with-rdflib

Michael Pigott

@mikepigott

I think I got it! Javascript is here: https://github.com/ironhorsesoftware/solid.vip/blob/development/public/javascripts/solid.js

Melvin Carvalho

@melvincarvalho

hi all im working on v2 of the bookmarking app, but some title have " in the literals

in a literal what should 7 double quotes do? """""""

that's the whole literal

im running into problems when a title starts with a "

Martynas Jusevicius

@namedgraph_twitter

""" is for multi-line strings

https://www.w3.org/TR/turtle/#h4_turtle-literals

Melvin Carvalho

@melvincarvalho

@namedgraph_twitter thanks im aware of that, but my question is what happens when you have 7 in a row?

so it is one quote surronded by 3 + 3

because when i try it on node solid server or the public instances it doesnt work

and i am trying to understand what should be correct behaviour

give it a try, add 7 quotes as a literal

Martynas Jusevicius

@namedgraph_twitter

i just tried parsing using raptor

http://librdf.org/parse?language=turtle&uri=&content=%3Chttp%3A%2F%2Fa%3E+%3Chttp%3A%2F%2Fb%3E+%22%22%22%22%22%22%22+.&Run+Parser=Run+Parser&.cgifields=language

doesn't work either

hmm

Melvin Carvalho

@melvincarvalho

good info, thanks!

in my bookmark app i added a feature where you could bookmark a story, but it is failing if that story has a quote in it

the title of the story i mean

especially if it starts with a quote

Martynas Jusevicius

@namedgraph_twitter

probably some escaping needs to be done

but i can't find any related info in the spec

" does not seem to be prohibited within """

have you tried escaping the quotes with backslashes?

"""\""""

Martynas Jusevicius

@namedgraph_twitter

this works in raptor and in Jena

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