> For the complete documentation index, see [llms.txt](https://hyperhq.gitbook.io/docs-hyper-sh/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hyperhq.gitbook.io/docs-hyper-sh/index-2/index/index-7/call.md).

# call

Usage: hyper func call \[OPTIONS] NAME

Call a function

```
--help             Print usage
--sync             Block until the call is completed
```

## Examples

**Call a function and pass a payload:**

```
$ echo "Hello" | hyper func call helloworld
CallId: 218b7b10-e7f1-4c48-ac3c-66792f8ffc06
```

**Notes**

* The finished/failed function call will be removed once the command with `--sync` parameter is successfully called.