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Functional Python Programming, 3rd edition

Functional Python Programming, 3rd edition

By : Steven F. Lott
4.5 (28)
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Functional Python Programming, 3rd edition

Functional Python Programming, 3rd edition

4.5 (28)
By: Steven F. Lott

Overview of this book

Not enough developers understand the benefits of functional programming, or even what it is. Author Steven Lott demystifies the approach, teaching you how to improve the way you code in Python and make gains in memory use and performance. If you’re a leetcoder preparing for coding interviews, this book is for you. Starting from the fundamentals, this book shows you how to apply functional thinking and techniques in a range of scenarios, with Python 3.10+ examples focused on mathematical and statistical algorithms, data cleaning, and exploratory data analysis. You'll learn how to use generator expressions, list comprehensions, and decorators to your advantage. You don't have to abandon object-oriented design completely, though – you'll also see how Python's native object orientation is used in conjunction with functional programming techniques. By the end of this book, you'll be well-versed in the essential functional programming features of Python and understand why and when functional thinking helps. You'll also have all the tools you need to pursue any additional functional topics that are not part of the Python language.
Table of Contents (18 chapters)
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Preface
16
Other Books You Might Enjoy
17
Index

15.4 Tracking usage

RESTful APIs need to be used for secured connections. This means the server must use SSL, and the connection will be via HTTPS protocol. The idea is to manage the SSL certificates used by ”front-end” or client applications. In many web service environments, mobile applications and JavaScript-based interactive front-ends will have certificates allowing access to the back-end.

In addition to SSL, another common practice is to require an API key as part of each transaction. An API key can be used to authenticate access. It may also be used to authorize specific features. Most importantly, it’s essential for tracking actual usage. A consequence of tracking usage can be throttling requests if an API key is used too often in a given time period.

The variations in business models are numerous. For example, use of the API key could be a billable event and charges will be incurred. For other businesses, traffic must reach some threshold before payments...

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