Serverless Applications with Node.js: Using AWS Lambda and Claudia.js

Severless Applications with Node.js
contents
foreword
preface
acknowledgments
about this book
about the authors
about the cover illustration
Part 1 Serverless pizzeria
	1 Introduction to serverless
		1.1 Servers and washing machines
		1.2 The core concepts
		1.3 How does serverless work?
		1.4 Serverless in practice
			1.4.1 Aunt Maria?s serverless pizzeria
			1.4.2 A common approach
			1.4.3 Serverless approach
		1.5 Serverless infrastructure ? AWS
		1.6 What is Claudia, and how does it fit?
		1.7 When and where you should use it
	2 Building your first
		2.1	Assembling pizza ingredients: building the API
			2.1.1	Which pizza can I GET?
			2.1.2	Structuring your API
			2.1.3	POSTing an order
		2.2	How Claudia deploys your API
		2.3	Traffic control: How API Gateway works
		2.4	When a serverless API is not the solution
		2.5	Taste it!
			2.5.1	Exercise
			2.5.2	Solution
	3 Asynchronous work is easy, we Promise()
		3.1	Storing the orders
		3.2	Promising to deliver in less than 30 minutes!
		3.3	Trying out your API
		3.4	Getting orders from the database
		3.5	Taste it!
			3.5.1	Exercise
			3.5.2	Solution
	4 Pizza delivery: Connecting an external service
		4.1	Connecting to an external service
		4.2	Connecting to the delivery API
			4.2.1	The Some Like It Hot Delivery API
			4.2.2	Creating your first delivery request
		4.3	Potential issues with async communication
			4.3.1	Forgetting to return a promise
			4.3.2	Not passing the value from the promise
			4.3.3	Not wrapping the external service in a promise
			4.3.4	Timeout issues with long async operations
		4.4	Taste it!
			4.4.1	Exercise
			4.4.2	Solution
	5 Houston,
		5.1	Debugging a serverless app
		5.2	Debugging your Lambda function
		5.3	X-Ray your app
		5.4	Taste it!
			5.4.1	Exercise
			5.4.2	Solution
	6 Level up your API
		6.1	Serverless authentication and authorization
		6.2	Creating user and identity pools
			6.2.1	Controlling API access with Cognito
		6.3	Taste it!
			6.3.1	Exercise
			6.3.2	Solution
	7 Working with files
		7.1	Storing static files in a serverless application
		7.2	Generating thumbnails
			7.2.1	Deploying your S3 function
		7.3	Taste it!
			7.3.1	Exercise
			7.3.2	Solution
		7.4	End of part 1: Special exercise
			7.4.1	Advanced task
Part 2 Let?s talk
	8 When pizza is one
		8.1	Pizza ordering beyond the browser
		8.2	Hello from Facebook Messenger
		8.3	What kinds of pizzas do you have?
		8.4	Speeding up the deployment
		8.5	Messenger templates
		8.6	How does Claudia Bot Builder work?
		8.7	Taste it!
			8.7.1	Exercise
			8.7.2	Solution
	9 Typing... Async and
		9.1	Making chatbots interactive
			9.1.1	Tap to order: answering a postback
		9.2	Making the chatbot structure more scalable
		9.3	Connecting your chatbot to the DynamoDB database
		9.4	Getting the user?s location from the chatbot
		9.5	Scheduling a delivery
		9.6	Small talk: Integrating simple NLP
		9.7	Taste it!
			9.7.1	Exercise
			9.7.2	Solution
			9.7.3	Advanced exercise
	10 Jarvis, I mean Alexa,
		10.1	Can?t talk right now: sending an SMS with Twilio
			10.1.1	An SMS pizza list
			10.1.2	Ordering a pizza
		10.2	Hey Alexa!
			10.2.1	Preparing the skill
			10.2.2	Ordering pizza with Alexa
		10.3	Taste it!
			10.3.1	Exercise
			10.3.2	Solution
		10.4	End of part 2: special exercise
Part 3 Next steps
	11 Testing, Testing, 1, 2, 3
		11.1	Testing server-hosted and serverless applications
		11.2	How to approach testing serverless applications
		11.3	Preparation
		11.4	Unit tests
		11.5	Mocking your serverless functions
		11.6	Integration tests
		11.7	Other types of automated testing
		11.8	A step beyond: Writing testable serverless functions
		11.9	Taste it!
			11.9.1	Exercise
			11.9.2	Solution
	12 Paying for pizza
		12.1	Payment transactions
			12.1.1	Implementing an online payment
		12.2	Implementing your payment service
		12.3	Could someone hack your payment service?
			12.3.1	Standards
			12.3.2	Competence
		12.4	Taste it!
			12.4.1	Exercise
			12.4.2	Solution
	13 Migrating your existing
		13.1	Uncle Roberto?s taxi application
		13.2	Running an Express.js application in AWS Lambda
			13.2.1	Proxy integration
			13.2.2	How serverless-express works
		13.3	Serving static content
		13.4	Connecting to MongoDB
			13.4.1	Using a managed MongoDB database with your serverless Express.js app
		13.5	Limitations of serverless Express.js applications
		13.6	Taste it!
			13.6.1	Exercise
			13.6.2	Solution
	14 Migrating to serverless
		14.1	Analyzing your current serverless application
		14.2	Migrating your existing application to serverless
		14.3	Embrace the platform
			14.3.1	Serving static files
			14.3.2	Storing state
			14.3.3	Logs
			14.3.4	Continuous integration
			14.3.5	Managing environments: production and development
			14.3.6	Sharing secrets
			14.3.7	VPC (Virtual Private Cloud)
		14.4	Optimizing your application
			14.4.1	Bundled or single-purpose functions
			14.4.2	Choosing the right memory size for your Lambda function
		14.5	Facing the challenges
			14.5.1	Handling timeouts
			14.5.2	Cold starts
			14.5.3	DDoS attacks
			14.5.4	Vendor lock-in
		14.6	Taste it!
	15 Real-world case studies
		15.1	CodePen
			15.1.1	Before serverless
			15.1.2	Serverless migration
			15.1.3	Cost of the infrastructure
			15.1.4	Testing and challenges
		15.2	MindMup
			15.2.1	Before serverless
			15.2.2	Serverless migration
			15.2.3	Cost of the infrastructure
			15.2.4	Testing, logs, and challenges
index