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Welcome, welcome, welcome!This hands-on, no-nonsense course covers everything from HTTP fundamentals and RESTful design principles to authentication strategies and advanced rate-limiting techniques.This course offers:Straight-to-the-point Approach!Hands-on Learning Experience!Real-world API Usage Experience!Instructor and Peer Support in the Q & A!By enrolling you'll get:Lifetime access to this courseUdemy Certificate of Completion available for download30-Day Money Back Guarantee. No Questions Asked!In this course we'll go over:Setting up your local environmentUnderstanding the fundamentals of HTTP and REST, including TCP & HTTP protocolsExploring the difference between authentication and authorization in RESTful APIsLearning how clients authenticate and the most common methods (API tokens, JWT, OAuth)Hands-on practice with public (and free) APIs, learning how to read documentation, generate API keys, and make requestsWorking with simple and complex APIs, including pagination, query encoding, and cherry-picking data from responsesUnderstanding LLM (AI) response streaming using OpenAI's APIEach theoretical section includes:In-depth videos about the relevant topic!Q & A section below the video!A comprehensive quiz (with detailed explanations)!Not convinced yet? Let's look at what each section encompasses:We begin with the basics and then progress into more advanced sections. Let's take a look:We first set up our local environment so you can follow along with the instructor. Then, we dive straight into HTTP in the HTTP Fundamentals section, where we examine the TCP and HTTP protocols, discuss what they are, and explore how they form the fundamental building blocks of RESTful APIs and the web in general. This section is valuable for both consuming APIs and gaining a deeper understanding of web fundamentals.Next, we shift our focus to RESTful principles. We break down what an API is in the real world, explore each RESTful principle in depth, and examine how they are commonly applied. You'll learn about endpoints, how they function, and the role of rate limiting in controlling API access.In the API Authentication Fundamentals section, we take an in-depth look at API authentication and authorization. We begin by discussing the important difference between authentication and authorization and how both are used in RESTful APIs. Next, we explore how clients can authenticate, followed by an overview of the most common authentication and authorization methods, including random API tokens, JWT tokens, and OAuth.In the Practical API section, we explore a variety of public (and free) APIs. We examine their documentation to learn how to extract the necessary information and generate API keys before making requests.Each API introduces a new concept that you'll often find in the wild. We start with a simple API that requires authentication, then move on to a more complex API that involves paginating results and encoding query parameters. Next, we learn how to cherry-pick data from responses before diving into how LLM (AI) response streaming works using OpenAI's (ChatGPT) API.At this point, we'll be done with the basics and ready to move into the advanced sections. This is where the course diverges, and following the content linearly is no longer necessary-you'll be free to pick any advanced section, in any order!In the Advanced Rate Limiting section, we'll explore what rate limiters are, why they are necessary, and examine real-world examples of what happens to APIs that don't implement them. We'll then introduce several of the most common rate-limiting algorithms used in public APIs, including the token bucket algorithm, leaky bucket algorithm, and fixed and sliding window algorithms. Finally, we'll discuss mitigating rate limits using various tools and introduce popular rate-limiting strategies, such as response-based back-off and exponential back-off algorithms.Enroll today, and let's start learning!:D

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