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How to extract custom header value in Web API message handler?

...alue); } Here's an example usage: GetFirstHeaderValueOrDefault("X-MyGuid", h => Guid.NewGuid().ToString(), Guid.Parse); Also have a look at @doguhan-uluca 's answer for a more general solution. share | ...
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate

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No appenders could be found for logger(log4j)?

... This Short introduction to log4j guide is a little bit old but still valid. That guide will give you some information about how to use loggers and appenders. Just to get you going you have two simple approaches you can take. First one is to just add thi...
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How to clear MemoryCache?

...digging some more, it seems that looking into Trim is not worth your time https://connect.microsoft.com/VisualStudio/feedback/details/831755/memorycache-trim-method-doesnt-evict-100-of-the-items How do I clear a System.Runtime.Caching.MemoryCache ...
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP

...n system-dependent paths which Python already knows about. Have a read of https://the-hitchhikers-guide-to-packaging.readthedocs.org/en/latest/ - 'The Hitchhiker's Guide to Packaging', and also http://docs.python.org/3/tutorial/modules.html - which explains PYTHONPATH and packages at a lower level....
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Should methods in a Java interface be declared with or without a public access modifier?

...the option to leave out 'public' introduces. Note the current wording at: https://docs.oracle.com/javase/specs/jls/se9/html/jls-9.html#jls-9.4 "A method in the body of an interface may be declared public or private (§6.6). If no access modifier is given, the method is implicitly public. It i...
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Will iOS launch my app into the background if it was force-quit by the user?

...by the WWDC video, a quick search on the developer forums turned this up: https://devforums.apple.com/message/873265#873265 (login required) Also keep in mind that if you kill your app from the app switcher (i.e. swiping up to kill the app) then the OS will never relaunch the app regardless...
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What is the naming convention in Python for variable and function names?

... @rr PEP8 is a "Style Guide", and describes itself as a Convention, NOT a Standard. It also clearly explains the reasons for not always following those "rules". – The Tahaan Mar 13 '15 at 8:28 ...
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setImmediate vs. nextTick

...────────────────────┘ source: https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/ Notice that the check phase is immediately after the poll phase. This is because the poll phase and I/O callbacks are the most likely places your calls to setI...
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Rails has_and_belongs_to_many migration

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