How to send form data PDF file request in policy manager v9.4

[Tan Kim]

service  logic：
1.var pdfData=base64 pdf data

2.base64 decode var ${pdfData} ，type：Message，content Type：application/pdf；charset=utf-8 to   ${pdfDataDecode}

3.var requestBody,type:Message,contentType:text/xml
body:
------------1234567
Content-Disposition:form-data;name="key1"

abc
------------1234567
Content-Disposition:form-data;name="file"
Content-Type=application/pdf

${pdfDataDecode}
------------1234567

4.route https://receveFileServer.com,request:${requestBody}

question:

${pdfDataDecode} is com.L7.message@73633…

how to transfer to  byte data?

1. 1. many thank!