Payment Processing at Gilt.com

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Payment Processing Sean Sullivan May 16, 2017 Portland Java User Group

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• software engineer • 21 years Java • 6 years at Gilt • back ofﬁce systems @ Gilt About me

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January 2016

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https://en.wikipedia.org/wiki/Hudson%27s_Bay_Company

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saksﬁfthavenue.com saksoff5th.com lordandtaylor.com gilt.com thebay.com

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www.gilt.com

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Web Checkout Android Checkout iPhone Checkout Checkout service

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checkout service payment system payment processor checkout UI order processing system order queue

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2008 order processing

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2017 discount service payment service ship calculator service order processing inventory service

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Credit card service • add card • delete card • list cards • authorize • capture • refund

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Credit card service version 1.x Java + java.util.HashMap + service framework version 2.x Java + Scala + JAX-RS version 3.x Scala + Play Framework + ApiDoc

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http://www.apidoc.me/doc/

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Date and time java.lang.Long java.util.Date java.util.Calendar joda-time library java.time API

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java.time API

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Money java.lang.Double java.lang.String java.math.BigDecimal joda-money library JavaMoney API

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JavaMoney

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org.javamoney moneta 1.1 Moneta library

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import org.javamoney.moneta.Money import java.math.BigDecimal val salary = Money.of( new BigDecimal(“25000000.00”), “USD”) Moneta example

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Security concerns • client-side credit card encryption • Java crypto strength • key management • safe logging

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https://paysvc.giltvault.com/payment_service/get_publickey?callback=demo Public Key endpoint

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Unlimited strength crypto oracle.com

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Key management tech.gilt.com

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Logging import ch.qos.logback.classic.PatternLayout import ch.qos.logback.classic.spi.ILoggingEvent class MaskingPatternLayout extends PatternLayout { ... }

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Logging 2017-05-16 20:08:18,312 INFO com.gilt.Foobar REDACTED

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Code coverage https://github.com/jacoco/jacoco https://bitbucket.org/atlassian/clover http://cobertura.github.io/cobertura/ https://github.com/scoverage

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Code coverage https://twitter.com/LlewellynFalco/status/812714305695019008

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The end

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