How Do I Properly Use CURL --POST to Send Data in a Request? or What’s the Correct Syntax for CURL --

Yo, had the same issue last week! For JSON, you def need the header, like others said. But also, if your JSON is complex, use a file instead of inline:

`curl -X POST -H "Content-Type: application/json" -d @data.json http://example.com`

For form data, `-d` works, but sometimes `--data-urlencode` is safer if you have special chars.

Pro tip: Use `-v` to see the full request and debug errors. Lifesaver!