Updating README and function files to include comments and deployment…

blocklist-call/README.md

@@ -12,4 +12,48 @@ This Function expects one environment variable to be set.
 
 ### Parameters
 
-This Function expects the incoming request to be a voice webhook. The parameters that will be used are `From` and `blocklist`.
+This Function expects the incoming request to be a [voice webhook](https://www.twilio.com/docs/voice/api/call-resource?code-sample=code-fetch-a-call-resource&code-language=Node.js&code-sdk-version=3.x). The parameters that will be used are `From` and `blocklist`.
+
+## Create a new project with the template
+
+1. Install the [Twilio CLI](https://www.twilio.com/docs/twilio-cli/quickstart#install-twilio-cli)
+2. Install the [serverless toolkit](https://www.twilio.com/docs/labs/serverless-toolkit/getting-started)
+
+```shell
+twilio plugins:install @twilio-labs/plugin-serverless
+```
+
+3. Initiate a new project
+```
+twilio serverless:init blocklist-call --template=blocklist-call && cd blocklist-call
+```
+
+4. Add your environment variables to `.env`:
+
+Make sure variables are populated in your `.env` file. See [Environment variables](#environment-variables).
+
+5. Start the server :
+
+```
+twilio serverless:start
+```
+
+5. Open the web page at https://localhost:3000/index.html and enter the required fields to send a challenge
+
+ℹ️ Check the developer console and terminal for any errors, make sure you've set your environment variables.
+
+
+## Deploying
+
+Deploy your functions and assets with either of the following commands. Note: you must run these commands from inside your project folder. [More details in the docs.](https://www.twilio.com/docs/labs/serverless-toolkit)
+
+With the [Twilio CLI](https://www.twilio.com/docs/twilio-cli/quickstart):
+
+```
+twilio serverless:deploy
+```
+
+Connect your Twilio phone number to your callback URL:
+Replace the phone number with your Twilio Number and the voice-url with your deployed URL. You can also do this in the console settings page for the phone number.
+
+twilio api:core:phone-numbers:update +11111111111 --voice-url https://YOUR_URL_HERE/twil.io/blocklist-call

blocklist-call/functions/blocklist-call.protected.js

@@ -1,3 +1,21 @@
+/*
+ * Reject Calls with Blocklist
+ *
+ * Description: Block inbound calls from specific, individual numbers.
+ *
+ * Contents:
+ * 1. Main Handler
+ */
+
+/*
+ * 1. Main Handler
+ *
+ * This is the entry point to the function. The function expects the incoming request to be a voice webhook.
+ * When an incoming call is made, the code detects the incoming phone number and compares it to the list of blocked numbers specified in /.env
+ * If the call is from a blocked phone number, the call is rejected and the call ends for the caller.
+ * If the incoming call is not on the blocked list, the call is accepted and the script will redirect to another URL for TwiML.
+ */
+
 exports.handler = function (context, event, callback) {
   const blocklist = event.blocklist || context.BLOCKLIST || '';
   const blocklistArray = blocklist