How to use http to send json

I am very new to http commands and apache bench, trying to do a simple benchmark. I had a question about how to send a json file usine httpie.

I saw an old example that used an older cli to do it like this:

http --verbose post example.org file.json --content-type="application/json"

However, I am unsure how to do this in httpie. I know that this part:

http --verbose post example.org

Would remain the same. But I don't know how I would do:

file.json --content-type="application/json

in httpie

Solution

This is the simplest HTTPie command for sending a JSON file:

$ http example.org @file.json