Send JSON in body to REST API

[darkCloud77]

I have data coming in HL7 format, converting it to JSON using the outbound JSON message template. That part appears to work. I then set a destination to HTTP Sender, set a good URL, and set the Content to Text, UTF-8, value ${message.encodedData}.

Every single destination execution fails with "ER7Serializer error
ERROR MESSAGE: Error converting XML to ER7
org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog."

It never makes it to the endpoint.

Please please please help. I've spent many hours Googling and nothing. Thank you.

[JonEBee]

Did you set the Channel Data Type for the Destination Response outbound to JSON, using the Data Types dialog under the Summary tab? Try setting the Content to "text/plain" or "application/json".