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Why the HttpContext is null within event receivers, console applications and timer jobs.

HttpContext httpctx = HttpContext.Current;

I googled about it and found that its by design. But why by design? There should be specific reason or purpose behind it. As a newbie i just want to be more clear about sharepoint concepts. Thank you.

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    Because they do not run in a web process (they run outside of the IIS)
    – Robert Lindgren
    Commented Sep 6, 2017 at 7:31
  • Thanks robert for quick reply. Your answer make the sense but can you please give more information.
    – Curious
    Commented Sep 6, 2017 at 7:36

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Think about what HTTP is and what an HTTP context would represent.

HTTP is the protocol that web servers use. Event receivers, timer jobs and console apps aren't served from a web server over HTTP. There's no request and no response, hence no HTTP context.

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  • Thanks Derek for answer. Ok I understood the Console app is not running on web server, but then where actually the event receivers and timer jobs runs? because these are deployed on sharepoint site !
    – Curious
    Commented Sep 7, 2017 at 5:32
  • They run in (non-web) separate process on the server. Timer jobs run on Owstimer.exe and event receivers run in a different process as well (can't remember which right now). Think of it this way: if it doesn't happen in a browser, it's (probably) not an HTTP context.
    – Derek Gusoff
    Commented Sep 7, 2017 at 9:49

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