> For the complete documentation index, see [llms.txt](https://docs.runvelocity.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.runvelocity.dev/components/cli.md).
# CLI
The Velocity CLI is currently the only way you can create and invoke Velocity functions. I will be adding custom function invocation URLs pretty soon.
### Installing the CLI
Download the precompiled binary for your operating system on the [release page](https://github.com/runvelocity/cli/releases)
### Creating a function
Let's use the CLI to create a function that just returns hello world. Create a file called `function.js` and input the following code
```javascript
module.exports = (args) => {
return {
hello: "world",
}
}
```
Next, you have to create a zip file containing this code. If you are on windows with poershell, use the following command
```bash
Compress-Archive -LiteralPath .\function.js -DestinationPath code.zip
```
If you are on Linux/Mac, use the following command
```bash
zip code.zip function.js
```
Next, create a function by running the following command
```bash
.\cli.exe create --name demo-func --file-path code.zip --handler function
```
{% hint style="info" %}
NOTE: By default, the CLI attempts to connect to my self-hosted Manager API which is definitely not guaranteed to be available. To pass in your custom Manager URL, use the `--manager-url` flag.
{% endhint %}
### Listing functions
To list all the functions you have deployed, run the following command
```bash
.\cli.exe list
```
### Invoking a function
To invoke a function, run the following command
```bash
.\cli.exe invoke --name demo-func
```
### Deleting a function
To delete a function, run the following command
```sh
.\cli.exe delete --name demo-func
```
