# Fn - Quick Start ## Pre-requisites 1. Node.js `v6.5.0` or later. 2. Serverless CLI `v1.20` or later. You can run `npm install -g serverless` to install it. 3. Install Fn & Dependencies(./installation.md). ## Create a new service Create a new service using the Nodejs template, specifying a unique name and an optional path for your service. ```bash # Create a new Serverless Service/Project $ serverless create --template fn-nodejs --path new-project # Change into the newly created directory $ cd new-project # Install npm dependencies $ npm install ``` ## Deploy, test and diagnose your service 1. **Deploy the Service** Use this when you have made changes to your Functions, Events or Resources in `serverless.yml` or you simply want to deploy all changes within your Service at the same time. ```bash serverless deploy -v ``` 2. **Deploy the Function** Use this to quickly upload and overwrite your function code, allowing you to develop faster. ```bash serverless deploy -f hello ``` 3. **Invoke the Function** Invokes the Function and returns results. ```bash $ serverless invoke --function hello --data '{"name":"Bob"}' -l Serverless: Calling Function: hello { message: 'Hello Bob' } I show up in the logs name was: Bob ``` 4. **Fetch the Function Logs** Open up a separate tab in your console and view logs for a specific Function using this command. ```bash serverless logs -f hello ``` ## Cleanup If at any point, you no longer need your service, you can run the following command to remove the Functions, Events and Resources that were created. ```bash serverless remove ```