Find the size of a multipart/form-data file in mule4

Question

I have a HTTP Listener which will read the file in multipart/form-data format. I want to find the size of that file and check if it is less/greater than 10 MB. Please help me with this

Answer 1

You can use the following:

%dw 2.0
output application/java
---
sizeOf(payload.parts.file.content.^raw)

Where file is the key for what is being sent.