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knightpop/useByForComprehension.sc

Last active November 5, 2017 14:11
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useByForComprehension.sc
/**
* Just use for comprehension
*/
val start1: Instant = Instant.now
val fUserInfo1 = for {
nickname <- getNicknameById(userId)
emailAddr <- getEmailAddressByNickname(nickname)
accountInfo <- getAccountInfoByNickname(nickname)
} yield UserInfo(userId, nickname, emailAddr, accountInfo)
val userInfo1 = Await.result(fUserInfo1, 10 second)
val end1: Instant = Instant.now
println(printInterval(userInfo1, start1, end1)) // UserInfo(31337,ktz,helloworld@example.com,None) take 7 seconds
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