By Mark C. Chu-Carroll
One of the main interesting contemporary adjustments within the computing international is cloud computing. Cloud computing is a dramatic shift in how purposes are built and used---and even in what purposes are. With cloud computing, builders aren't any longer development purposes that run on a user's machine laptop. as an alternative, they're development providers at the community that may be utilized by millions of clients even as.
Cloud companies are a thrilling chance for builders: the cloud is a platform for growing prone, a brand new form of software which may achieve extra clients, and supply these clients with extra features than a laptop program ever may perhaps. development purposes as cloud prone additionally makes them scalable: cloud purposes can simply and easily adapt from operating on a unmarried desktop for a unmarried person to operating on hundreds of thousands of desktops for thousands of clients.
Code within the Cloud will train you what a cloud provider is, and the way it differs from conventional purposes. it's going to make it easier to construct a cloud provider, profiting from the companies that AppEngine makes on hand to you, utilizing iterative improvement of an easy program to steer you thru the several features of AppEngine improvement, utilizing both Python or Java.
in the course of the strategy of engaged on an easy software, you'll find out about find out how to construct an program as a carrier; the best way to deal with power info utilizing AppEngine; how you can construct dynamic, interactive person interfaces that run in a user's web-browser; how you can deal with safeguard in an internet software; and the way to engage with different companies working within the AppEngine cloud.
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Extra info for Code in the Cloud
MarkCC (10:48): It's coming along well. I'm writing about the chat application. 1: A mockup of the chat interface For now, we’ll ignore the user interface and focus our attention on the back end. ) For now, we’re just going to write a basic back end for a traditional local chat application, with the calls to hook a user interface onto it. We’re not going to implement the entire thing in this chapter. Instead, our goal for most of this book will be to get to the point where we can do everything that’s in this code.
Now you’re all set up. You have your Google App Engine account, and the App Engine tools are installed. You’re ready to build an App Engine application. In the next chapter, we’ll start building a real chat application that runs in the cloud using the App Engine tools that we just finished setting up. References and Resources Google App Engine Developers Guide. . . com/appengine/docs/ The official Google App Engine documentation for both the Python and Java APIs. Common Gateway Interface (CGI) .
App Engine provides a basic storage engine that allows you to store objects and data. That storage system doesn’t have a query language at all. The datastore is nothing but a high-volume, massively parallel storage system. Internally, the datastore uses indices to help make queries work quickly. Normally, the indices are generated automatically based on the tests that you run in the App Engine development environment. It’s also possible for you to build your own indices, as we’ll see in Chapter 14, Advanced Datastore: Queries and Indices, on page 216.
Code in the Cloud by Mark C. Chu-Carroll