C++ (cpp-netlib) http listener - how to remove headers

Question

I created an HTTP listener that accepts POST requests for files. I followed this template almost exactly: https://github.com/cpp-netlib/cpp-netlib/blob/main/libs/network/example/http/echo_async_server.cpp

I start my listener like so: ./build/http_listener 0.0.0.0 8000

Then post file to the listener using curl: curl --form "[email protected]" -X POST http://127.0.0.1:8000/

I noticed that the variable body__, which gets populated with the text of the file also gets populated with header data. I do not want this. How do I populate the variable body__ without any header data?

This is what it looks like:

Answer 1

body__ does not get populated with header data. What you see is multipart data that you submit with --form <name=content>. If you want submit raw file data use another curl command:

curl --data-binary "@file1.txt"  -H "Content-Type: application/octet-stream" http://127.0.0.1:8000/

-X POST can be omitted if is used with --data-binary, --data, --form.

Unfortunately curl does not send a file name. If a file name is required on a server side, specify the header Content-Disposition:

curl --data-binary "@file1.txt"  -H "Content-Type: application/octet-stream" -H "Content-Disposition: attachment; filename=file1.txt" http://127.0.0.1:8000/

---

KB

1. --data-binary
2. -F, --form