Hi Harald,
I was previously investigating this topic as well. There are some community
efforts for HTTP sources, please have a look at the references below:
https://getindata.com/blog/data-enrichment-flink-sql-http-connector-flink-sql-part-one/
https://github.com/getindata/flink-http-connector
ht
The quick answer is no.
There's no http data stream on hand.
You can implement one by yourself. Here[1] is a guidance about how to implemet
user-defined source & sink
Btw, there's a jira for http sink[2] but is marked as won't fix.
[1]
https://nightlies.apache.org/flink/flink-docs-master/do
