As we moved through this chapter, we took a look at how the serverless architecture is becoming the new trend in the development of the applications, and how this architecture works. We covered the different components of the serverless architecture and went through the concepts of Backend as a Service and Function as a Service, which power the serverless architecture. We then looked at the role of API Gateways in the architecture and how the API Gateway in serverless applications differs from the one we used in Microservices.

After that, we took a tour of building our first serverless application and ran it through Apache OpenWhisk, which provides an open source platform for running serverless applications. Here, we also took a deep dive into how the different components inside the OpenWhisk project work together to get the final results to us.

We concluded the chapter by exploring the different advantages that the move to the serverless application development approach provides us.

With this, we can now move on and start to think about the deployment strategy that we may want to use for the deployment of our applications. The next chapter takes us through the different deployment strategies in the cloud, and how to decide which kind of cloud to use based on the needs of the organization.