How to properly send a curl post request with JSON data? or Why is my curl post request returning a 4

"Why is my curl post request returning a 400 error?"

Hey guys,

I’m trying to send a curl post request with some JSON data, but keep getting a 400 Bad Request error.

Here’s what I’m running:
```bash
curl -X POST https://api.example.com/data -d '{"key": "value"}'
```

I’ve double-checked the JSON, and it *seems* valid. Am I missing headers? Or maybe the endpoint expects something else?

Also, is there a way to see more details about why it’s failing? Like, can I dump the full response or something?

Thanks in advance!

---

*(or alternatively...)*

"What’s the correct syntax for a curl post request with headers?"

Yo,

Need some help with a curl post request. I’m sending JSON data, but the server keeps ignoring it unless I add headers.

I’ve tried:
```bash
curl -X POST -H "Content-Type: application/json" -d '{"name": "test"}' https://api.example.com
```

But is this the right way? Do I need other headers like `Accept` or `Authorization`?

Also, does the order of flags (`-H`, `-d`, etc.) matter?

Thx!