HTTP/2 Daniel Quirino Oliveira SAP Hybris Expert Services LATAM [email protected] 

HTTP is the foundation of EVERYTHING today Introduction 

Introduction 

Introduction Source: httparchive.org 

Introduction Head of line blocking 

Latency: time delay between the cause and the effect Introduction 

Introduction 

HTTP/1.1 workarounds best practices 

Spriting CSS Inlining Assets Concatenation Domain Sharding Introduction 

HTTP/2 

RFC 7540 https://tools.ietf.org/html/rfc7540 HTTP/2 

Major update of HTTP protocol in, ermmm... 15 years (?) HTTP/2 

Keeps current HTTP paradigm Resources referenced by a URI accessible through a VERB. Keeps http(s):// URLs scheme What stays 

Binary over pure-text protocol Adieu, telnet! Multiplexed One TCP connection to rule them all Header compression HPACK: https://http2.github.io/http2-spec/compression.html Server push Send assets before client requests it TLS (almost) mandatory What changes 

Connection upgrade dance Client requests a resource Server replies with all supported protocols Client responds with protocol of choice Server responds with HTTP Status Code 101 HTTP/1.1 or HTTP/2 ? 

Can I haz H/2? Most likely: yes Source: http://caniuse.com/#feat=http2 

Performance 20% - 60% faster Security TLS User experience Server push improves client usability Benefits 

http://hpbn.co/ https://daniel.haxx.se/http2 https://github.com/nghttp2/nghttp2 https://http2.github.io/ https://http2.github.io/http2-spec/ http://www.eclipse.org/jetty/documentation/cur rent/http2-configuring-push.html References 

Thank you