Fixes/Polishes for COVID vaccine hesitancy chatbot template (twilio-labs#246)

* Added placeholder file for GCP auth key

This is needed for the uploading of the JSON to work.

* Fix reference to configured phone number

* Update .env file to clarify configuration

Add link to dialogflow language options. Specify that user should paste JSON key contents.

* .env polishes and update README with new language code env var

* Fix linting error

* chore(env-manifest): update manifest file

Co-authored-by: twilio-labs-ci <[email protected]>

Author: jme783

covid-vaccine-faq-bot/.env

@@ -4,20 +4,22 @@
 TWILIO_PHONE_NUMBER=
 
 # description: Your Google Cloud Project ID
-# link: https://cloud.google.com/dialogflow/cx/docs/quick/setup#project  
+# link: https://cloud.google.com/dialogflow/cx/docs/quick/setup#project
 # format: text
 # required: true
 GOOGLE_CLOUD_PROJECT_ID=
 
-# description:  A JSON key file for your Google service account 
+# description:  A JSON key file for your Google service account. If deploying via CodeExchange, paste the JSON contents of the service account key below.
 # format: file(json)
 # contentKey: SERVICE_ACCOUNT_KEY_CONTENT
 # link: https://cloud.google.com/iam/docs/creating-managing-service-account-keys#creating_service_account_keys
 # required: true
 GOOGLE_APPLICATION_CREDENTIALS=/service-account-key.json
 
-#description: Language to be leveraged by chatbot, can be configured for multi-language chatbots
-#format: text
+# description: Language to be used by chatbot. Defaults to U.S. English (en-US). Do not change if using pre-build chatbot agents. If changing, set to Dialogflow language tag (e.g. es).
+# format: text
+# required: false
+# link: https://cloud.google.com/dialogflow/es/docs/reference/language
 LANGUAGE_CODE=en-US
 
 # description: SID of the Vaccine Bot FAQ Studio Flow, will be set automatically by the app, no need to configure in advance

covid-vaccine-faq-bot/README.md

@@ -40,8 +40,11 @@ In your `.env` file, set the following values:
 | `TWILIO PHONE NUMBER`            | Your Twilio phone number for sending and receiving SMS (find this [in the console here](https://www.twilio.com/console/phone-numbers/incoming))| Yes |
 | `DIALOGFLOW_ES_PROJECT_ID`       | Your Google Dialog Flow Project ID ([instructions here](https://cloud.google.com/resource-manager/docs/creating-managing-projects#identifying_projects))                                                                                                              | Yes |
 | `GOOGLE_APPLICATION_CREDENTIALS` | Path to service account key file (json) to authenticate into dialogflow API. Default is `/service-account-key.json`.                                                      | Yes  |
+| `LANGUAGE_CODE` | Language to be used by chatbot. Default is
+U.S. English, `en-US`. If changing, set to Dialogflow language
+tag found [here](https://cloud.google.com/dialogflow/es/docs/reference/language)                                                      | Yes  |
 
-There is a fourth environment variable, `FLOW_SID`, but that will be set automatically by the app. **Do not** set this value.
+There is a fifth environment variable, `FLOW_SID`, but that will be set automatically by the app. **Do not** set this value.
 | Variable | Description | Required |
 | :------------------------------- | :----------------------------------------------------------------------------------------------------------------------  | :-- |
 | `FLOW_SID`                       | SID of Studio Flow to orchestrate chatbot messaging. Will be set automatically by the app. Do not configure in advance.                                                                        | No  |

covid-vaccine-faq-bot/assets/client.js

@@ -1,5 +1,6 @@
 /* eslint-disable no-console */
 /* eslint-disable no-undef */
+/* eslint-disable prefer-destructuring */
 let phoneNumber;
 let flowSid;
 
@@ -13,7 +14,7 @@ const fullUrl = baseUrl.href.substr(0, baseUrl.href.length - 1);
 fetch(`${fullUrl}/return-config`)
   .then((response) => response.json())
   .then((json) => {
-    phoneNumber = json.phone_number;
+    phoneNumber = json.phoneNumber;
     // Grab the phone number being used and display it to help the user test their app
     const phoneNumberElements = $('.phone-number');
     phoneNumberElements.html(phoneNumber);

covid-vaccine-faq-bot/assets/service-account-key.private.json

@@ -0,0 +1,12 @@
+{
+  "type": "service_account",
+  "project_id": "<YOUR PROJECT ID HERE>",
+  "private_key_id": "<YOUR PRIVATE KEY ID HERE>",
+  "private_key": "<YOUR PRIVATE KEY BLOCK HERE>",
+  "client_email": "<YOUR SERVICE ACCOUNT EMAIL ADDRESS>",
+  "client_id": "<YOUR CLIENT ID>",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://oauth2.googleapis.com/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "<YOUR X509 CERT URL>"
+}

env-variables.manifest.json

@@ -1346,18 +1346,18 @@
         "key": "GOOGLE_APPLICATION_CREDENTIALS",
         "required": true,
         "format": "file(json)",
-        "description": "A JSON key file for your Google service account",
+        "description": "A JSON key file for your Google service account. If deploying via CodeExchange, paste the JSON contents of the service account key below.",
         "link": "https://cloud.google.com/iam/docs/creating-managing-service-account-keys#creating_service_account_keys",
         "default": "/service-account-key.json",
         "configurable": true,
         "contentKey": "SERVICE_ACCOUNT_KEY_CONTENT"
       },
       {
         "key": "LANGUAGE_CODE",
-        "required": true,
+        "required": false,
         "format": "text",
-        "description": "Language to be leveraged by chatbot, can be configured for multi-language chatbots",
-        "link": null,
+        "description": "Language to be used by chatbot. Defaults to U.S. English (en-US). Do not change if using pre-build chatbot agents. If changing, set to Dialogflow language tag (e.g. es).",
+        "link": "https://cloud.google.com/dialogflow/es/docs/reference/language",
         "default": "en-US",
         "configurable": true,
         "contentKey": null