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May 31, 2018 11:17
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| def loadNumberOfItems(url: String): IO[Either[Exception, Int]] = | |
| Url(url) | |
| .toRight(InvalidUrl) | |
| .map(request(_)) | |
| .traverse(_.map(_.getFieldOption("number").flatMap(_.as[Int]).toRight(InvalidJson))) | |
| .map(_.flatten) |
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