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BEREACTIVEANDMICROWITHAMICROPROFILE
STACK
OndroMihályi@OMIHALYI
WHATISMICROPROFILE?
open-sourcespecificationforJavamicroservices( )microprofile.io
@OMIHALYI
GOALSTOSOLVE
Betteruserexperiencesaveresources/costskeepupwithmassiveloadshandle/recoverfromFAILURES
@OMIHALYI
@OMIHALYI
REACTIVEINANUTSHELL
Traditional-singlethread
@OMIHALYI
REACTIVEINANUTSHELL
Reactive-notboundtoathread
@OMIHALYI
REACTIVEINANUTSHELL
Reactive-notboundtoathread
@OMIHALYI
REACTIVEPIPELINE
→ incomingrequest→ subscribe→ process→ publish(data/error)
@OMIHALYI
REACTIVESUPPORTINMICROPROFILE2.0
ReactiveREST&SSE(JAX-RS)AsyncCDIeventsMonitoringviaMetrics
@OMIHALYI
JAX-RS
@OMIHALYI
HOWMICROPROFILEFITSTHEPIPELINE
REACTIVEJAX-RSsubscribetoRESTrequestsandresponsespublishRESTresponses
SERVER-SENTEVENTS(JAX-RS)-publishviaHTTPASYNCCDIEVENTS-publishtoothercomponentsMONITORINGviaMetrics-publishmetricstoexternalsystems
@OMIHALYI
WHAT'SMISSING?
PROCESSINGstreamsofmessagesconnectsuscriberstopublishers
PUBLISHandSUBSRIBEtomessagequeues/topics
connectdecoupledpublisherstosubscribers
@OMIHALYI
MORETOCOMEINMICROPROFILEPROCESSINGstreamsofmessages
Reactiveoperators-PUBLISHandSUBSRIBEtomessagequeues/topics
ReactiveMessaging-Bonus:
Asynch.FaultToleranceinterceptors
releasecandidate
draftAPI
@OMIHALYI
WE'LLADDMOREFROMJAVAEE8
Message-DrivenBeansviaPUBLISHandSUBSRIBEtomessagequeues/topics
KafkaJCAconnector
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WE'LLFILLWHAT'SMISSING
RxJava(ReactiveStreams)PROCESSINGstreamsofmessages
asynchronousFaultTolerance
React.jsturnmessagestreamintoUIupdate
@OMIHALYI
ANDRUNWITHPAYARAMICRO
JAVAEEandMICROPROFILEtogetherexecutableJAR,<70MBeasytorunappswithnoinstallation
commandline,mavenplugin
builduberJARhttps://payara.fish
@OMIHALYI
OURDEMOAPPLICATION
@OMIHALYI
DEMOSource:https://github.com/OndrejM-demonstrations/Reactive-and-Micro-
with-MicroProfile-and-Payara
@OMIHALYI
FURTHERRESOURCES
JCACloudConnectors:
MicroProfileReactiveOperators:
https://github.com/payara/Cloud-Connectors
https://github.com/eclipse/microprofile-reactive-streams
@OMIHALYI
THANKYOU!
OndroMihalyi( )
WorkingforPayaraMicroProfileprojectmemberEclipseFoundationandJCPmemberCzechJUGleader
ondro.inginea.eu
@OMIHALYI
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