Add a comprehensive list of RDF Media Types

build.sbt

@@ -33,6 +33,8 @@ lazy val root = project
 			"ch.qos.logback" % "logback-classic" % "1.2.3",
 			"org.typelevel" %% "cats-core" % "2.4.2",
 			"org.typelevel" %% "cats-free" % "2.4.2",
+			"net.bblfish.rdf" %% "banana-rdf" % "0.8.5-SNAPSHOT",
+			"net.bblfish.rdf" %% "banana-jena" % "0.8.5-SNAPSHOT",
 
 			//"com.novocode" % "junit-interface" % "0.11" % "test"
 		).map(_.withDottyCompat(scalaVersion.value)),

src/main/scala/run/cosy/http/RDFMediaTypes.scala

@@ -0,0 +1,111 @@
+package run.cosy.http
+
+/**
+ * Media Types for RDF.  
+ * Collected from the [[https://docs.aws.amazon.com/neptune/latest/userguide/sparql-media-type-support.html RDF media types used by SPARQL in Neptune]] document by Amazon.
+ * Feel free to complete the list if needed.
+ **/
+object RDFMediaTypes {
+
+	import akka.http.scaladsl.model.MediaType
+	import akka.http.scaladsl.model.HttpCharsets.{`UTF-8`,`US-ASCII`}
+
+	/** see [[https://www.w3.org/TR/rdf-syntax-grammar/#section-MIME-Type RDF1.1 XML Syntax]] spec and 
+	 * [[https://tools.ietf.org/html/rfc3870 RFC3870]] registration
+	 **/
+	val `application/rdf+xml` = MediaType.customWithOpenCharset(
+		"application","rdf+xml",
+		fileExtensions = List("rdf")
+	)
+
+	// Note that around 2004 the W3C defined a procedure for Mime Type Registration
+	// that uses the W3C specs without needing to go through an RFC procedure
+	// see [[https://www.w3.org/2020/01/registering-mediatypes.html Register and Internet Media Types for a W3C Spec]]
+
+	/** see [[https://www.w3.org/TR/n-triples/#n-triples-mediatype RDF 1.1 N-Triples]] spec. */
+	val `application/n-triples` =   MediaType.customWithFixedCharset(
+		"application","n-triples",`UTF-8`,
+			fileExtensions = List("nt")
+	)
+	/**
+	 *  see [[https://www.w3.org/TR/n-quads/#sec-mediatype W3C NQuads Speec]]
+	 *  has IRI: http://www.w3.org/ns/formats/N-Quads
+	 */
+	val `application/n-quads` = MediaType.customWithFixedCharset(
+		"application","n-quads",`UTF-8`,
+		fileExtensions = List("nq")
+	)
+
+	/** The older version of n-quads was limited to US-ASCII and had a different mime type */
+	val `text/n-quads` = MediaType.customWithFixedCharset(
+		"text","n-quads",`US-ASCII`,
+			fileExtensions = List("nq")
+	)
+
+	/**
+	 *	see [[https://www.w3.org/TR/turtle/ RDF 1.1 Turtle]]
+	 * has URI:  http://www.w3.org/ns/formats/Turtle 
+	 */
+	val `text/turtle` = MediaType.customWithFixedCharset(
+		"text","turtle",`UTF-8`,
+		fileExtensions = List("ttl")
+	)
+
+	/**
+	 * see [[https://www.w3.org/TR/trig/#sec-mediaReg RDF1.1 TriG]]
+	 */
+	val `application/trig` = MediaType.customWithFixedCharset(
+		"application", "trig", `UTF-8`,
+		fileExtensions = List("trig")
+	)
+
+	/**
+	 * see [[https://www.w3.org/TeamSubmission/n3/#sec-mediaReg Notation3 (N3): A readable RDF syntax]]
+	 */
+	val `text/n3` = MediaType.customWithFixedCharset(
+		"text","n3", `UTF-8`,
+		fileExtensions = "n3",
+		params = 
+	)
+	/**
+	 * see [[https://www.w3.org/TR/json-ld/#application-ld-json JSON-LD 1.1]]
+	 * The JSON-LD spec defined six values for a profile parameter listed next.
+	 */
+	val `application/ld+json` = MediaType.customWithFixedCharset(
+		"application","ld+json",`UTF-8`,
+		fileExtensions =  List("jsonld")
+	)
+
+	val jsonLdExpandedProfile = Uri("http://www.w3.org/ns/json-ld#expanded") 
+	val jsonLdCompactedProfile = Uri("http://www.w3.org/ns/json-ld#compacted")
+	val jsonLdContextProfile = Uri("http://www.w3.org/ns/json-ld#context")
+	val jsonLdFlattenedProfile = Uri("http://www.w3.org/ns/json-ld#flattened")
+	val jsonLdFrameProfile = Uri("http://www.w3.org/ns/json-ld#frame")
+	val jsonLdFramedProfile = Uri("http://www.w3.org/ns/json-ld#framed")
+
+	/**
+	 * Quad format defined by HP in XML
+	 * [[https://www.hpl.hp.com/techreports/2004/HPL-2004-56.html]]
+	 */
+	val `application/trix` = MediaType.customWithOpenCharset(
+		"application","trix",
+		fileExtensions = List("trix")
+	)
+
+	/**
+	 * see [[https://www.w3.org/TR/sparql11-results-json/#content-type SPARQL 1.1 Query Results JSON Format]]
+	 */
+	val `application/sparql-results+json` = MediaType.customWithFixedCharset(
+		"application","sparql-results+json",`UTF-8`,
+		fileExtensions =  List("srj")
+	)
+
+	/**
+	 * see [[https://www.w3.org/TR/rdf-sparql-XMLres/#mime SPARQL Query Results XML Format (Second Edition)]]
+	 */
+	val `application/sparql-results+xml` = MediaType.customWithOpenCharset(
+		"application","sparql-results+xml",
+		fileExtensions =  List("srx")
+	)
+
+}