Webinar: Draw a line between HTTP/2 client and HTTP Client
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The presentation by Kunal Sethi introduces HTTP/2, the second major version of the HTTP protocol released in 2015, highlighting its compatibility with HTTP/1.1 and key features like header compression and server push. It details the new HTTP client API in JDK 9, which emphasizes immutability, ease of use, and asynchronous requests, providing a significant upgrade from the older HTTPURLConnection API. The document also compares HTTP/1.1 and HTTP/2 clients, stressing improvements in code readability and functionality.
Webinar: Draw a line between HTTP/2 client and HTTP Client
- 1. Http/1.1 vs HttP/2 Client Java Presented By: Kunal Sethi Software Consultant Knoldus Inc. LEARN NOW
- 2. ● Http/2 Protocol ● Http/2 Client Introduction ● Main components of Http/2 (new API) ● Why Http/2 Client ● Diff b/w Http/1.1 and Http/2 Client ● Demo Agenda
- 3. ● In 2015, Internet Engineering Task Force (IETF) release HTTP/2, the second major version of the most useful internet protocol, HTTP. It was derived from the earlier experimental SPDY protocol. ● Main goals of developing HTTP/2 was: ● High-level compatibility with HTTP/1.1 — methods, status codes, URIs and header fields. ● Compression of request headers ● HTTP/2 Server Push What is Http/2 ?
- 4. ● The HTTP Client module is bundled as an incubator module in JDK 9 and supports HTTP/2 with backward compatibility still facilitating HTTP/1.1. ● To use it, we need to define our module using a module-info.java file which also indicates the required module to run our application: module com.baeldung.java9.httpclient { requires jdk.incubator.httpclient; } Http/2 Client Introduction
- 5. The API consists of 3 core classes: ● HttpRequest ● HttpClient ● HttpResponse Main components of new API
- 6. ● represents the request to be sent via the HttpClient. ● The best part of this new API is they are focusing on immutable pattern as well. We can use the builder pattern to create the request instance which is immutable so, it is thread safe. ● Methods of HttpRequest: HttpRequest
- 7. ● behaves as a container for configuration information common to multiple requests. ● In Client they are also using immutable concept. We can use the builder pattern to create the client instance. ● Methods of HttpClient: HttpClient
- 8. ● This represents the result of an HttpRequest call. This is the response from the server which you have request in the form of HttpRequest through the HttpClient. ● Methods of HttpResponse: HttpResponse
- 9. ● Until very recently, Java provided only the HttpURLConnection API – which is low-level and isn’t known for being feature-rich and user-friendly. ● Therefore, some widely used third-party libraries were commonly used – such as Apache HttpClient, Jetty, and Spring’s RestTemplate. Why Http/2 Client
- 10. ● Supports Http2 ● Easy to use ● Can send Asynchronous request ● Many more new methods which actually this new API provides. ● No need to explicitly cast the connection. ● Can write code in more readable form. Difference between Http/1.1 & Http/2 Client
- 11. Demo
- 12. Q/A If you have questions please ask me @ ➔ kunal.sethi@knoldus.in
- 14. About Knoldus Knoldus is a technology consulting firm with focus on modernizing the digital systems at the pace your business demands. DevOps Functional. Reactive. Cloud Native