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Java/Kotlin DateTimeFormatter to parse Apple version of RFC3339 date returned by Apple API (Itune receipt)
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| val appleRfc3339DateFormatter: DateTimeFormatter = | |
| DateTimeFormatterBuilder() | |
| .appendValue(YEAR, 4).appendLiteral('-').appendValue(MONTH_OF_YEAR, 2).appendLiteral('-').appendValue(DAY_OF_MONTH, 2) | |
| .appendLiteral(' ') | |
| .appendValue(HOUR_OF_DAY, 2).appendLiteral(':').appendValue(MINUTE_OF_HOUR, 2).appendLiteral(':').appendValue(SECOND_OF_MINUTE, 2) | |
| .appendLiteral(' ') | |
| .appendZoneId() | |
| .toFormatter() | |
| val aRfc3339DateString = "2016-03-17 03:24:38 Etc/GMT" | |
| val parsedDate = ZonedDateTime.parse(aRfc3339DateString, appleRfc3339DateFormatter).toDate() |
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RFC3339 is so loose that it's better to make specialized parser for each vendor. In this case, Apple decides that their date should use
spaceinstead ofTto separate the date and time part and no fraction seconds.