## **Note: This documentation is now self-hosted! Documentation for the latest release can be found [here](https://editor.netsblox.org/docs/).**
This presents a walkthrough creating a simple service in NetsBlox! This assumes you are using OSX or linux.

## Create the service
First, set up a [local development environment](https://github.com/NetsBlox/NetsBlox#installation).

Creating the server support for a simple service can be done as follows (assuming \*nix shell starting at the project root):
```bash
cd src/server/services/procedures
mkdir hello-world
touch hello-world/hello-world.js
```

Next, open `hello-world/hello-world.js` and add the following code:
```javascript
const HelloService = {};

HelloService.hello = function() {
    return 'world';
};

module.exports = HelloService;
```

Finally, start your NetsBlox server with `DEBUG=netsblox:* npm start`. Continue to "Client support" to test the RPC in the browser!

## Use it from the browser!
Open a browser and navigate to your NetsBlox server address (default is `http://localhost:8080`). Switch to the `Network` tab and create a `callRPC` block.

Click on the first dropdown menu and you should see `HelloWorld` as one of the options. Next, select the second menu and you should receive a list of all valid actions for the rpc, in our case just `hello`. After selecting these, click on the block and you should see a dialog responding with "world"!.

Congrats, you have made your first custom service in NetsBlox!

## Next Steps
Now that you have created your own minimal service, check out the [best practices](./Best-Practices-for-NetsBlox-Services.md) to make it a much more feature-rich and robust service!