Using Rx observable stream, is there an effective way to get the first item, complete the source observable, but throw an exception if the second item arrives? Sounds like not a good situation to use Rx for, but is there a clever way to handle it?
Rx: get first item, but throw exception when the second item arrives
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As far as I understand, this is a violation of the
IObservableContract, that clearly specifies that no extra items should arrive after eithererrororcomplete. So basically, you are checking for a situation that cannot (or should not) arise.