Add friend with solid-auth-client fetch

1

Hi everyone,

I’m creating a new solid app with react and I’m wondering what’s the easy/better way to add a friend in my profile ?

Is this correct to call https://raphaeld.inrupt.net/profile/card with PUT http and content-type: “application/sparql-update” ?

With body:
PREFIX foaf: http://xlmns.com/foaf/0.1 INSERT DATA { https://raphaeld.inrupt.net/profile/card#me foaf:knows https://baptisted.inrupt.net/profile/card#me . }

Or maybe via one of the javascript lib ?

Kind regards,

Raphaël

2

Hi @Raf23, if you send that PUT request, it will replace all the contents in your profile and probably break your Pod. If you don’t know the answer to this question, I would recommend you to indeed use one of the libraries that aim to support reading and writing data to a Pod, to provide you with some guard rails.

(I’d personally recommend reading through the documentation on Inrupt’s libraries, but then I contribute to some of those libraries :slight_smile: )

1 Like
3

You should use PATCH that apply a partial change and not PUT that replaces the full content.

4

Yes correct, PATCH seems better indeed :slight_smile:
Thx !

5

With PATCH I receive an http 400… I continue to search a solution

6

Thanks for the links @Vincent

7

400 is a bad request
Can you paste your exact code.
Could you try :

@prefix foaf: <http://xlmns.com/foaf/0.1> .

INSERT { <#me> foaf:knows <https://baptisted.inrupt.net/profile/card#me> . } .

You missed the <> and dots

Never try to do that with acl’s because you could lose your pod.
Using libraries with programmatic ACL functions you may avoid problems. Among others I think inrupt libraries, tripledoc or solid-file-client could help you.

If your pod is on solicommunity.net I can repair broken pods.

8

Request URL: https://raphaeld.inrupt.net/profile/card
Request Method: PATCH
Status Code: 400 Bad Request
Remote Address: 35.168.136.65:443
Referrer Policy: strict-origin-when-cross-origin

Content-Type: application/sparql-update

payload:
@prefix foaf: <http://xlmns.com/foaf/0.1> .

INSERT { <#me> foaf:knows <https://baptisted.inrupt.net/profile/card#me> . } .

9

With this payload I received an HTTP 200
@prefix foaf: <http://xlmns.com/foaf/0.1> . INSERT { <#me> foaf:knows <https://baptisted.inrupt.net/profile/card#me> . }

But the content of my profile doesn’t seems to be correct because I don’t see my new friend…

https://raphaeld.inrupt.net/profile/card#me

10

With graphql-ld lib I receive well my friend (foaf:knows) so it seems to be correct.

Here it’s not displayed… but I can live with this :wink: Thanks @bourgeoa @Vincent for your help

image
image952×776 104 KB

11

I can see your friends listed here.

As you can see, it lists them as 0.1knows, rather than knows:

image
image784×166 9.73 KB

So IIRC you’ll want a trailing slash for the FOAF prefix, i.e. replace

@prefix foaf: <http://xlmns.com/foaf/0.1>

by

@prefix foaf: <http://xlmns.com/foaf/0.1/>
1 Like
12

Yes true. I missed that
@Raf23 you can edit your profile/card in mashlib to add the missing /
One way to avoid these typing problems is to use GitHub - solid/solid-namespace: A collection of common RDF namespaces used in the Solid project

1 Like