I don’t know of specific documentation about this (apart from code suggestions/approaches on Stackoverflow).
On a project which was written in Python (with Flask), we added the code to @app.before_request so it gets executed before each request to the Application (and redirected the user to the custom domain). On another project, we created a separate service (this means we had a dispatch.yaml file) to handle all such urls and returned a 404 error ..... NoCommandLine ...... https://nocommandline.com <https://nocommandline.com/> A GUI for Google App Engine > On Apr 27, 2021, at 9:58 AM, Glenn Richard <java...@gmail.com> wrote: > > > Thanks for your feedback, NoCommandLine. Personally, it's fine with me if > someone finds a way into my site via the appspot domain name, so long as the > custom name prevails in the address bar when it is used as the access method. > But for those who read this thread and wish to redirect visitors who get to > their sites via their appspot domain, where is there documentation that > describes how to accomplish this redirect? > On Tuesday, April 27, 2021 at 11:36:21 AM UTC-4 NoCommandLine wrote: > Looks good. Glad you figured it out. > > Note: If for some reason someone goes directly to the .appspot link, it won’t > automatically redirect to your custom domain. You need to have code that will > handle this redirect. However, some people don’t worry about this based on > the argument that the probability of someone going directly to the appspot > link is very low because the person would need to know the Application Id, > and also know it’s being hosted on GAE. > > ..... NoCommandLine ...... > https://nocommandline.com <https://nocommandline.com/> > > A GUI for Google App Engine > > > > > > > >> On Apr 27, 2021, at 5:52 AM, Glenn Richard <jav...@gmail.com >> <applewebdata://9D27C050-F619-4C2F-8719-871A3C77939D>> wrote: >> > >> Thanks, NoCommandLine, and David for your help. The redirect works correctly >> now. Following your advice, with assistance from links you provided, I >> re-performed the mapping process from scratch. >> >> For the benefit of others, I am providing the following summary of the steps >> that I believe were relevant: >> At the top of the page, the pull-down menu was used to select the project >> for which the designated custom domain was to be applied. >> From the navigation menu in the upper left, I scrolled down to the App >> Engine submenu in the COMPUTE section, and chose Setting from the list that >> appeared. >> I selected the Custom domains tab. >> From there, I clicked on Add a custom domain, then selected the appropriate >> custom domain previously purchased from Google from the pull-down menu. >> I mapped both the naked domain and the www subdomain. For the naked domain, >> this created four A records and four AAAA records. For the www subdomain, it >> created one CNAME record. These can be viewed at any time via the Add a >> custom domain tab. >> Offline, I edited the app.yaml file for the project to add the following: >> - url: /.* >> secure: always >> redirect_http_response_code: 301 >> script: auto >> >> Back online, I uploaded the revised app.yaml file and redeployed the project. >> To avoid the hazard of having the cached version of the appspot url from >> appearing in the address bar, I removed that address from the history in ny >> browser, which is Google Chrome. >> After that, it works, thanks! If any of the above is inaccurate or requires >> clarification, please advise. >> >> >> >> >> On Monday, April 26, 2021 at 6:38:55 PM UTC-4 NoCommandLine wrote: >> You need to map both the naked domain and the sub domain. See this >> StackOverflow <https://stackoverflow.com/a/66268646/15211203> response (you >> can ignore the SSL bit) >> >> On Monday, April 26, 2021 at 3:25:51 PM UTC-7 Glenn Richard wrote: >> Hi David, >> >> So,delving a little more into the problem, if I type the www subdomain of >> the custom name into the address bar, the custom name does appear there >> after redirection occurs. This leads me to believe that the problem is that >> I need to create another CNAME record for the naked domain. Where should >> that be done? >> >> On Mon, Apr 26, 2021 at 2:33 PM 'David (Cloud Platform Support)' via Google >> App Engine <google-a...@ <>googlegroups.com <http://googlegroups.com/>> >> wrote: >> Hello, >> >> After properly following mapping custom domains >> <https://cloud.google.com/appengine/docs/standard/python/mapping-custom-domains> >> and waiting for DNS propagation, you should be able to see these domain >> names within your address bar and it should not redirect you to the >> appspot.com <http://appspot.com/> domain. Please make sure you configure the >> cname as instructed in the document. >> >> On Monday, April 26, 2021 at 4:09:26 AM UTC-4 Glenn Richard wrote: >> I believe that's what I did originally, but in case I am mistaken, I have >> tried that again with one of the two purchased Google custom domains. After >> several steps, the process culminated with "DNS changes can take up to 24 >> hours to take effect. Your SSL certificate will take several minutes to >> activate." Accordingly, all of this should work within 24 hours, at which >> time I will check the redirection process and report the results here. >> >> Thanks. >> >> On Sunday, April 25, 2021 at 3:39:36 PM UTC-4 NoCommandLine wrote: >> Hi, >> >> >>> and have redirected them to my App Engine project addresses <<< >> >> How did you do this? Did you use the 'Add a Custom Domain' under App Engine >> > Settings? If you didn't, try that method >> >> On Sunday, April 25, 2021 at 6:09:30 AM UTC-7 Glenn Richard wrote: >> I purchased two custom domains from Google, and have redirected them to my >> App Engine project addresses. I performed the steps of setting up DNS for >> both. When I enter either of the custom domains into a browser address bar, >> the redirection does occur, and the page content is displayed in the browser >> window, however the custom domain names do not remain in the address bar. >> Instead, the App Engine addresses are displayed. How can I configure these >> so that the custom domain names remain in the address bar instead? It seems >> that this should go smoothly, since I am using a Google product to connect >> to another Google product, making any external verification of ownership >> unnecessary. >> >> Thanks. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to google-appengi...@ <>googlegroups.com <http://googlegroups.com/>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/google-appengine/164d5064-672b-4b05-9084-7daad13da04dn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/google-appengine/164d5064-672b-4b05-9084-7daad13da04dn%40googlegroups.com?utm_medium=email&utm_source=footer>. >> >> -- > >> You received this message because you are subscribed to a topic in the >> Google Groups "Google App Engine" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/google-appengine/FfDF_NwSPqQ/unsubscribe >> <https://groups.google.com/d/topic/google-appengine/FfDF_NwSPqQ/unsubscribe>. >> To unsubscribe from this group and all its topics, send an email to >> google-appengi...@googlegroups.com >> <applewebdata://9D27C050-F619-4C2F-8719-871A3C77939D>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/google-appengine/d94f7833-5923-45a9-87a4-eb8736166171n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/google-appengine/d94f7833-5923-45a9-87a4-eb8736166171n%40googlegroups.com?utm_medium=email&utm_source=footer>. > > > -- > You received this message because you are subscribed to a topic in the Google > Groups "Google App Engine" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/google-appengine/FfDF_NwSPqQ/unsubscribe > <https://groups.google.com/d/topic/google-appengine/FfDF_NwSPqQ/unsubscribe>. > To unsubscribe from this group and all its topics, send an email to > google-appengine+unsubscr...@googlegroups.com > <mailto:google-appengine+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/google-appengine/3a420cd0-cd67-43fc-8c66-26ce05e49738n%40googlegroups.com > > <https://groups.google.com/d/msgid/google-appengine/3a420cd0-cd67-43fc-8c66-26ce05e49738n%40googlegroups.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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