[b]"How to properly use curl HTTP POST for sending data?"[/b] or [b]"What's the correct syntax for a curl HTTP POS

Bro, curl http post can be tricky. Your command works for form data, but JSON needs headers. Try this:

`curl -X POST https://example.com/api -H "Content-Type: application/json" -d '{"key":"value"}'`

If it fails, maybe the server expects something else. Use `-v` to see the full convo. Also, check out curlconverter.com—it turns browser requests into curl commands.