> For the complete documentation index, see [llms.txt](https://openai.gitbook.io/code-cheatsheets/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://openai.gitbook.io/code-cheatsheets/all/bash/curl.md).

# Curl

Transfer data with all these protocols: DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP

## Post

Basic

```bash
curl localhost:4000/api/events -X POST -d '{"event": {"type": "basic"}}' | json_pp
```

Advanced

```bash
curl https://api.mux.com/video/v1/assets \
  -H "Content-Type: application/json" \
  -X POST \
  -d '{ "input": "[URL_TO_VIDEO_ASSET]", "playback_policy": "public" }' \
  -u {MUX_TOKEN_ID}:{MUX_TOKEN_SECRET} | json_pp
```

`json_pp` takes json and outputs pretty printed json

```bash
curl -I http://google.com #print headers returned
```

### Authorization Header

```bash
curl -H 'Accept: application/json' -H "Authorization: Bearer ${TOKEN}" https://api.linkedin.com/v2/me\?projection\=\(id,profilePicture,localizedHeadline,headline,vanityName\) | json_pp
```

\--user, is transformed in basic authorization header so

```
Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
```

The text after the Basic keyword is a base64 encoded text string of the username:password combination provided with the --user parameter


---

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