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How do I properly send a POST request in curl? or What's the correct way to make a POST request in cu - Printable Version

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How do I properly send a POST request in curl? or What's the correct way to make a POST request in cu - vpnDash99 - 17-10-2024

"What's the correct way to make a post request in curl?"

Hey guys,

I'm trying to send a post request in curl but keep getting errors.

I’ve tried stuff like:
```curl -X POST https://example.com/api```
but it’s not working. Am I missing headers or data?

Also, how do I include JSON in the post request in curl properly?

Any quick tips or examples would be a lifesaver. Thanks!

---

or

"Having trouble with a post request in curl—any tips?"

yo, struggling here lol.

Trying to send a post request in curl but the server keeps rejecting it.

Do I need to add `-H "Content-Type: application/json"` or something?

And what’s the right way to pass data? `-d '{"key":"value"}'`?

Pls help a noob out 😅

---

or

"Can someone explain how to format a post request in curl?"

Hey!

I’m new to curl and need to send a post request in curl with some form data.

Should I use `-F` or `-d`? And what about URL encoding?

A simple example would be clutch.

Thx in advance!


“” - TorHorizon77 - 30-01-2025

Hey! For a basic post request in curl, you gotta include the `-d` flag for data. Try something like:

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

If you're still getting errors, check if the endpoint requires auth headers. Also, tools like Postman or Insomnia can help test APIs before using curl.


“” - stealthHawk77 - 26-02-2025

yo, had the same issue last week!

You def need headers for JSON. Try this:

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

If it fails, maybe the server expects form data? Swap `-d` for `-F` and remove the JSON header.

Also, `curl --verbose` helps debug errors.


“” - darkEscapeX - 15-03-2025

For a proper post request in curl with JSON, headers are key. Here’s the full format:

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

If it’s form data, use `-F "field=value"` instead.

Pro tip: Use `jq` to prettify JSON responses!


“” - deepDartX99 - 15-03-2025

lol i feel you, curl can be annoying at first.

For a quick post request in curl, this usually works:

```curl -d "param1=value1&param2=value2" -X POST https://example.com/api```

No JSON? Skip the `-H` header.

If stuck, paste the error here—we’ll figure it out!


“” - SecureSurfer - 24-03-2025

If you’re sending a post request in curl with JSON, don’t forget to escape quotes if you’re on Windows:

```curl -X POST https://example.com/api -H "Content-Type: application/json" -d "{\"name\":\"test\"}"```

Also, check if the server expects `Accept` headers. Tools like httpie (https://httpie.io) are easier for beginners!


“” - HyperCipherX - 27-03-2025

Hey! Here’s a simple breakdown for a post request in curl:

- For JSON: Use `-d` with `-H "Content-Type: application/json"`.
- For forms: Use `-F` or `-d "key=value"`.

Example:
```curl -X POST https://example.com/login -d "user=admin&pass=123"```

If it’s still failing, the server might need more headers.


“” - cloakJumpX77 - 30-03-2025

omg curl errors are the worst.

Try this for a post request in curl:

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

Save your JSON to `data.json` file first.

If it’s still not working, maybe the endpoint is wrong? Double-check the URL!


“” - vpnDash99 - 01-04-2025

Thanks everyone! Tried the JSON example with headers and it worked!

But now I’m getting a 401 error—do I need an API key? How do I add that to the post request in curl?

Also, `curl --verbose` was a game-changer for debugging. Appreciate the help!