ewilderj
MIME Type
It would be good to know what the official MIME type of DOAP files/URLs is.
I'd think application/rdf+xml, but examples/redland-doap.rdf says:
Though it is recommended DOAP files start with Project as the document element, they can be full fledged RDF files like this one is.
This would mean "normal" and "recommended" documents are no RDF and need a different MIME type.
AFAIK RDF has many representations including rdfxml, n3, turtle http://www.w3.org/2008/01/rdf-media-types
plus now json-ld http://json-ld.org
Where DOAP is bare XML, you can serve it as application/xml
Where it is RDF, use an RDF media type as @elf-pavlik references.
I would consider registering a prs. media type per RFC6836—in which case, it would be application/prs.doap+xml and application/prs.doap+json as appropriate.
I'll leave this open while I evalute registering the prs media type.
Your server does not seem to specify the mime type, as can be seen by the command.
$ curl -i http://usefulinc.com/ns/doap | head
Date: Wed, 13 Apr 2022 04:07:16 GMT
Server: Apache/2.4.29 (Ubuntu)
Last-Modified: Sun, 04 Mar 2018 23:00:51 GMT
ETag: "d1eb-5669e2e49aec0"
Accept-Ranges: bytes
Content-Length: 53739
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
This is fixed and will serve as application/xml+rdf for the canonical schema doc.
$ curl -i https://usefulinc.com/ns/doap | head -15
accept-ranges: bytes
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-type: "application/rdf+xml"; charset=utf-8
date: Tue, 11 Jun 2024 00:02:54 GMT
etag: "bdb5cbb8590e957c732c6c5e98fe734b-ssl"
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01J029QXXKRD888X2JX1T9ZE34
content-length: 55660
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"