Kaushal Shriyan <kaushalshri...@gmail.com> wrote:
> I am using Postman to invoke a REST API call. Is there a way to capture
the
> cURL (https://curl.se/) request (including headers and body) initiated by
> the Postman REST API client to the application server running RHEL 8.10
OS,
> and then to the backend server/system using tcpdump and analyze the packet
> capture (.pcap) file in Wireshark?
Yes.
If it's HTTPS, then you will only see L3/L4 info, and no L6/7 like headers
and body.
> Headers: Contain metadata about the request, such as content type, user
> agent, etc.
> Body: Contains the data that we want to send (if any). Typically used with
> POST and PUT methods.
window1> tcpdump -i any -w myfile.pcap ip host postman-rest-api-client and tcp
port 80
window2> run test
window1> ^C
If this is on the same system, then maybe:
window1> tcpdump -i lo -w myfile.pcap tcp port 80
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