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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Export the access log name, \"Happstack.Server.AccessLog.Combined\"","articleBody":"I just had to set up access logging on a Happstack application, and have one comment.\r\n\r\nFirst things first - searching the [crash course](http://www.happstack.com/docs/crashcourse/index.html) for the words \"log\" and \"access\" quickly shows how to provide a logging function, and then [the hackage page](https://hackage.haskell.org/package/happstack-server) under `Happstack.Server.Types` (not `Happstack.Server.Logging`, surprisingly) further provides the type of access logging functions and explains what `logMAccess` does.\r\n\r\nThe question was, how to configure the server to output access logs to a file instead of to stderr.  As [this post](https://stackoverflow.com/questions/18580391/how-to-send-happstack-logs-to-stdout) mentions, you can set the root logger's level to INFO, and also make it log to a file, but as it also mentions, that will also affect all other loggers that are children of the root logger, but does not provide the name of Happstack's logger.  I had to search the Happstack source code to get the name \"Happstack.Server.AccessLog.Combined\" used by logMAccess.  It would be nice if that were exported so that I wouldn't have to search the source code, and so that it couldn't possibly unexpectedly break if the string changes.","author":{"url":"https://github.com/negatratoron","@type":"Person","name":"negatratoron"},"datePublished":"2017-11-06T06:34:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/34/happstack-server/issues/34"}