Official prefix for mqv:

[DylanVanAssche]

MQTT bindings are provided by the mqv: prefix from https://www.w3.org/TR/wot-binding-templates/.
However, the prefix is not standardized yet by the WoT community, tracked in w3c/wot-binding-templates#120

Split of #69

[idomingu]

Hi @DylanVanAssche, following on this proposal, is there anything similar for Kafka?

The next example is provided in the RML-IO spec:

<#KafkaStream> a rml:LogicalSource;
    rml:source [ a rml:Source, td:Thing;
        td:hasPropertyAffordance [
            td:hasForm [
                # URL and content type
                hctl:hasTarget "kafka://localhost:8089/topic";
                hctl:forContentType "application/xml";
                # Kafka parameters through W3C WoT Binding Template for Kafka
                kafka:groupId "MyAwesomeGroup";
            ];
        ];
    ];
    rml:referenceFormulation rml:XPath;
    rml:iterator "/my/xpath";
.

However, I could not find any W3C WoT Binding Template for Kafka.

[DylanVanAssche]

No there's no prefix for it yet...