BE REACTIVE AND MICRO WITH A MICROPROFILE STACK€¦ · reactive REST client (JAX-RS) Server-Sent Events Kafka JCA connector Hazelcast distributed cache and other structures NoSQL

BEREACTIVEANDMICROWITHAMICROPROFILE

STACK

OndrejMihályi@omihalyi

WHATDOWEWANT?

@OMihalyi

thereshouldbeaPROBLEMtosolve

WHYDOWEWANTIT?

@OMihalyi

BETTERUSEREXPERIENCE

updateswhenready,reducedwaitingerrorsraisedASAPuserscanreactfasteravoidsunnecessaryuserretries

@OMihalyi

HANDLEHIGHLOADS

utilizeresourcesatmaximum(CPU)threadsaren'twastedbyblockingavoidblockingofnewrequests

@OMihalyi

HANDLEMASSIVELOADS

scaletomorenodesmessagingtodistributetheload

@OMihalyi

DON'TFORGETABOUTFAILURES

failfastandavoidwastemakesurefailuresarehandledfailureshappenalotmoreindistributedsystems

@OMihalyi

WHATISMICROPROFILE?

open-sourcespecificationforJavamicroservices( )microprofile.io

@OMihalyi

REACTIVESUPPORTINMICROPROFILE

AsynchronousREST(JAX-RS)CDIeventseasyFaultToleranceMonitoringviaMetrics

@OMihalyi

WE'LLADDWHAT'SMISSING

RxJavahandlecallbacksanddatastreams

asynchronousFaultTolerance

React.jseasyupdatesonevents

@OMihalyi

OURDEMOAPPLICATION

@OMihalyi

DEMOSource:https://github.com/OndrejM-demonstrations/Reactive-and-Micro-

with-MicroProfile-and-Payara

@OMihalyi

WE'LLADDMORE

JavaEE8reactiveRESTclient(JAX-RS)Server-SentEvents

KafkaJCAconnectorHazelcast

distributedcacheandotherstructuresNoSQLdistributeddatastore

@OMihalyi

DEMO

@OMihalyi

PAYARASERVER

MicroProfile,JavaEE,Hazelcast,CloudJCAConnectors,CDIeventbusdynamicclustering(suitableforcloud)fastdevelopmentadminconsolemonitoring

@OMihalyi

PAYARAMICRO

APIsasinServer(exceptSOAP,remoteEJB)mostoffeaturesoftheServerexecutableJAR,<70MBeasiertoinstallandrunapps

commandline,mavenplugin

builduberJAR

@OMihalyi

WHATTOAVOID

relyingonrequestscoperelyingonthreadlocalusingsynchronousCDIinterceptorsDon'tjumptoreactivebeforeneeded

@OMihalyi

QUESTIONS?

Thankyou!

@OMihalyi