05 - 3 | شرح Response Body Handlers و Error Handling و HTTP Headers في Java HttpClient

This video explains an important lecture from the Network Programming & Web Services course titled: Application Layer Protocols: HTTP & Beyond The lecture covers the role of the Application Layer in the OSI model and how this layer adds meaning, structure, and rules to the raw data transmitted across the network. We also explain the HTTP/1.1 protocol in terms of its request and response structure, and we learn about the most important HTTP methods such as GET, POST, PUT, PATCH, and DELETE. Additionally, we explain HTTP Status Code families such as 2xx, 3xx, 4xx, and 5xx. We also clarify the difference between HTTP/1.1 and HTTP/2, focusing on important concepts such as Multiplexing, HPACK Compression, Server Push, and Binary Framing. In the practical section, we explain how to use the Java HttpClient API found in Java 11+ and the difference between Synchronous Requests using send() and Asynchronous Requests using sendAsync() and CompleteFuture. This video is suitable for students of Network Programming and Web Services, especially those preparing for MCQ exams who want to understand the key points in a structured and clear way. Video Content Application Layer Explained in the OSI Model Difference Between Raw Sockets and HTTP Structure of HTTP Requests and HTTP Responses Explanation of HTTP Methods Explanation of HTTP Status Codes Difference Between HTTP/1.1 and HTTP/2 The Concept of Multiplexing in HTTP/2 Explanation of HPACK Compression Java HttpClient API Difference Between send() and sendAsync() Using CompletableFuture Sending a POST Request with a JSON Body Working with BodyPublishers and BodyHandlers Best Practices for Error Handling in HTTP Keywords Network Programming, Web Services, Application Layer, HTTP, HTTP 1.1, HTTP 2, HTTP Methods, HTTP Status Codes, Java HttpClient, Java 11, sendAsync, CompletableFuture, Synchronous Requests, Asynchronous Requests, REST API, API Client, OSI Model, TCP, HTTP Request, HTTP Response, BodyPublishers, BodyHandlers, Error Handling, Network Programming Explained, Web Services Explained HTTP in Arabic, Java HTTP Client Explained, HTTP2 Explained, REST API Explained in Arabic Hashtags #NetworkProgramming #WebServices #HTTP #HTTP2 #Java #JavaHTTPClient #RESTAPI #ApplicationLayer #OSIModel #Programming #MCQ #ProgrammingExplanation #Programming #Networks