Error In Httphandler
Direct URL Find Posters, Flyers, and Web Graphics International Contact Support Contact Support Search site Search Search Go back to previous article Username Password Sign in Sign in Sign in Forgot password Expand/collapse global hierarchy Home All EBSCO Interfaces EBSCOadmin EBSCOadmin - Frequently Asked Questions (FAQs) Expand/collapse global location Why am I seeing an “Error in HttpHandler” when trying to access EBSCOhost with Navigator interface? Last updated 07:58, 27 Jun 2016 Save as PDF No headers This error message will occur when a user attempts to access the EBSCOhost with Navigator interface with no databases selected. At least one database should be defaulted On for the profile in EBSCOadmin. To correct this, please perform the following steps in EBSCOadmin: Log in to EBSCOadmin and access the Customize Services tab. Select the appropriate EBSCOhost with Navigator profile. Select the Databases sub-tab. Make sure at least one database has the Default to Selected radio button set to On. Click Submit button to apply changes. Back to top How do I reset an expired or forgotten EBSCOadmin password? How do I select the style of Find field on EBSCOhost Advanced Search? Recommended articles There are no recommended articles. Article type howto Tags Troubleshooting © Copyright 2016 EBSCO Help Powered by MindTouch
When I try to enter an EBSCO database I get an "error in HttpHandler" message. What can I do? Search our https://help.ebsco.com/interfaces/EBSCOadmin/EBSCOadmin_FAQs/seeing_Error_in_HttpHandler_when_access_EBSCOhost_Navigator Knowledgebase Search Browse: All Topics 2132About the Library156Adobe39Adult Education15African Americans113American History183American Literature2Anatomy3Android4Anthropology9Art809Articles1Asian Americans6Astronomy12Athletics & Sports33Biology73Blackboard1189Books500Borrowing Library Items6Botany8British History57British Literature36Business41Careers6Chemistry6Child Development16CHS88Citation6Citation/Style: ACS2Citation/Style: AMA263Citation/Style: APA3Citation/Style: ASA5Citation/Style: Chicago10Citation/Style: GSA3Citation/Style: Harvard438Citation/Style: MLA2Citation/Style: Turabian3College http://asklibrary.com.edu/faq/59661 Success Academy867COM11COM History416COM: Bookstore11COM: Course Evaluations151COM: ID63COM: WebAdvisor9COMCat21Communication218Computers & Tech (Help)31Computers & Tech (Research)178Copiers5Copyright & Fair Use4Cosmetology14Criminal Justice84Database: Academic Search Complete16Database: America's News24Database: Artemis Literary Sources10Database: Britannica60Database: CINAHL1Database: Consumer Health Complete17Database: CQ Researcher9Database: CREDO358Database: EBSCO80Database: EBSCO eBooks20Database: Facts on File25Database: Films on Demand11Database: Gale47Database: GVRL eBooks9Database: Health Reference Center Academic40Database: Issues & Controversies11Database: LearningExpress27Database: LION63Database: Literary Reference Center80Database: Literature Resources from Gale53Database: Opposing Viewpoints29Database: ProQuest Research Library2Database: Science in Context3Database: Science Online2Database: Vocational & Career Collection236Database: WorldCat598Databases5Disasters330Distance Ed13Drama1EasyBib234eBooks10Economics & Finance44Education138Email1EMS114English9Environment8ESL21Ethics8Evaluation1Facebook135Faculty2Fashion222Fax/Scan87Files & Drives13Film10Fine Arts1Firefighting44Games & Puzzles
the existing http.HandlerFunc—the func MyHandler(w http.ResponseWriter, r *http.Request) signature you often see. It's a useful https://elithrar.github.io/article/http-handler-error-handling-revisited/ "general purpose" handler type that covers the basics, but—as with anything generic—there are a few shortcomings: Having to remember to explicitly call a naked return when you want to stop processing in the handler. This is a common case when you want to raise a re-direct (301/302), not found (404) or internal error in server error (500) status. Failing to do so can be the cause of subtle bugs (the function will continue) and because the function signature doesn't require a return value, the compiler won't alert you. You can't easily pass in additional arguments (i.e. database pools, configuration values). You end up having to either use error in httphandler a bunch of globals (not terrible, but tracking them can scale poorly) or stash those things into a request context and then type assert each of them out. Can be clunky. You end up repeating yourself. Want to log the error returned by your DB package? You can either call log.Printf in your database package (in each query func), or in every handler when an error is returned. It'd be great if your handlers could just return that to a function that centrally logs errors and raise a HTTP 500 on the ones that call for it. My previous approach used the func(http.ResponseWriter, *http.Request) (int, error) signature. This has proven to be pretty neat, but a quirk is that returning "non error" status codes like 200, 302, 303 was often superfluous—you're either setting it elsewhere or it's effectively unused - e.g. func SomeHandler(w http.ResponseWriter,