BE REACTIVE AND MICRO WITH A MICROPROFILE STACK€¦ · reactive REST client (JAX-RS) Server-Sent...
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BE REACTIVE AND MICRO WITH A MICROPROFILE STACK Ondrej Mihályi @omihalyi
Transcript of BE REACTIVE AND MICRO WITH A MICROPROFILE STACK€¦ · reactive REST client (JAX-RS) Server-Sent...
BEREACTIVEANDMICROWITHAMICROPROFILE
STACK
OndrejMihályi@omihalyi
WHATDOWEWANT?
@OMihalyi
thereshouldbeaPROBLEMtosolve
WHYDOWEWANTIT?
@OMihalyi
BETTERUSEREXPERIENCE
updateswhenready,reducedwaitingerrorsraisedASAPuserscanreactfasteravoidsunnecessaryuserretries
@OMihalyi
HANDLEHIGHLOADS
utilizeresourcesatmaximum(CPU)threadsaren'twastedbyblockingavoidblockingofnewrequests
@OMihalyi
HANDLEMASSIVELOADS
scaletomorenodesmessagingtodistributetheload
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DON'TFORGETABOUTFAILURES
failfastandavoidwastemakesurefailuresarehandledfailureshappenalotmoreindistributedsystems
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WHATISMICROPROFILE?
open-sourcespecificationforJavamicroservices( )microprofile.io
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REACTIVESUPPORTINMICROPROFILE
AsynchronousREST(JAX-RS)CDIeventseasyFaultToleranceMonitoringviaMetrics
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WE'LLADDWHAT'SMISSING
RxJavahandlecallbacksanddatastreams
asynchronousFaultTolerance
React.jseasyupdatesonevents
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OURDEMOAPPLICATION
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DEMOSource:https://github.com/OndrejM-demonstrations/Reactive-and-Micro-
with-MicroProfile-and-Payara
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WE'LLADDMORE
JavaEE8reactiveRESTclient(JAX-RS)Server-SentEvents
KafkaJCAconnectorHazelcast
distributedcacheandotherstructuresNoSQLdistributeddatastore
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DEMO
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PAYARASERVER
MicroProfile,JavaEE,Hazelcast,CloudJCAConnectors,CDIeventbusdynamicclustering(suitableforcloud)fastdevelopmentadminconsolemonitoring
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PAYARAMICRO
APIsasinServer(exceptSOAP,remoteEJB)mostoffeaturesoftheServerexecutableJAR,<70MBeasiertoinstallandrunapps
commandline,mavenplugin
builduberJAR
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WHATTOAVOID
relyingonrequestscoperelyingonthreadlocalusingsynchronousCDIinterceptorsDon'tjumptoreactivebeforeneeded
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QUESTIONS?
Thankyou!
@OMihalyi
