How to make camel-http4 producer endpoint to send a multipart/formdata from HashMap object

Solution Verified - Updated -

Issue

This is the expecting camel route.

client -- multipart/formdata --> camel-undertow. Modify some formdata. camel-http4 -- multipart/formdata --> backwend webservice

Client will send a request something like this.

curl -v -X POST  -F greeting=hello -F 'sampleFile=@demo.txt' http://localhost:8080/sample

The camel-undertow consumer endpoint automatically converts the request data to HashMap object and sets it to the exchange.in.body.
Now, how to make camel-http4 producer endpoint to send a multipart/formdata from HashMap object?

Environment

  • Red Hat Fuse
    • 7.x
    • standalone SB

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