Secretary is a Twilio app working over Amazon Lambda.

• AWS API Gateway
• AWS Lambda
• AWS S3
• AWS SES
• Twilio

You may want to take a look at this document before starting to implement: https://www.twilio.com/docs/sms/tutorials/how-to-receive-and-reply-python-amazon-lambda

• virtualenv
• python3.7
• zip

Create a virtual environment folder named venv-aws and activate it. Then install the required packages:

pip install -r requirements.txt

In the project root folder:

./create_archives.sh

Then, you can upload this zip file using the AWS console. Or if you have aws command-line application, try this command, secretary_dial is a function name:

aws lambda update-function-code --function-name secretary_dial --zip-file fileb://function.zip

The last step in AWS-side is configuring API endpoint for the dial. After you configured the endpoint, you will use this URL in Twilio.

Required environment variables:

• ENV: dial, dial_call_status. To get API urls looking at the environment. It can be prod or dev, or what you decided in API Gateway.
• PHONE_NUMBER: dial. To redirect the caller if the contact doesn't answer the call.
• COMPANY_NAME: dial. Used in welcome message.
• SYSTEM_EMAIL_ADDRESS: dial_call_status. From email.
• MANAGER_EMAIL_ADDRESSES: dial_call_status. To email.