How Do I Send a CURL POST Request with Headers and JSON Data? or What’s the Correct Syntax for a CURL

"Why Is My CURL POST Request Returning a 400 Error?"

Hey folks,

Struggling here—my CURL POST request keeps throwing a 400 Bad Request error. I’m sending JSON data with headers, and everything *looks* right, but nope.

Here’s my command:
```bash
curl -X POST https://api.example.com/data -H "Content-Type: application/json" -d '{"key": "value"}'
```

Headers are set, data’s formatted… what am I missing? Maybe the endpoint’s picky about something?

Also, how do you guys debug this stuff? Tried `-v` but the output’s a wall of text. Any quick tips?

Thanks in advance!

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