This is most probably happening because grpc server accepts http/2 requests and grpc web sends a http1.1 request so you will have to use a envoy proxy server for this
On Tuesday, April 6, 2021 at 3:20:52 AM UTC+5:30 Bilal Ahmad wrote: > facing similar issue. did you manage to figure out? > > On Wednesday, December 2, 2020 at 12:00:42 PM UTC Chris Majewski wrote: > >> Yes, that's what I did. But when I swap out the Node server with my >> Python server, the Python server doesn't see any of the requests from my >> client. How can I troubleshoot this? The Docker containers are really >> minimal, there are almost no devops tools on them. I would like to start by >> ensuring that the Envoy proxy is configured correctly. I'm able to look at >> the Envoy logs, but not sure what to look for, and the lack of tools isn't >> helping. >> >> [image: Logo] >> [image: image] >> Krzysztof (Chris) Majewski | Software Developer >> Sumac / Silent Partner Software >> silentpartnersoftware.com <https://www.silentpartnersoftware.com/> >> Toll-free 1-877-399-4645 >> [image: twitter] <https://twitter.com/sumactweets> [image: facebook] >> <https://www.facebook.com/SilentPartnerSoftware/> [image: youtube] >> <https://www.youtube.com/user/SumacSoftware> >> >> >> On Tue, Dec 1, 2020 at 6:29 PM Stanley Cheung <stanle...@google.com> >> wrote: >> >>> Does it work if you follow the quick start tutorial and use a Node >>> server? If that works, swap out the Node server with your Python server. >>> That way you can at least be sure that the JS and the Envoy parts are >>> working correctly. >>> >>> On Tue, Dec 1, 2020 at 7:43 AM Chris Majewski < >>> chris.m...@silentpartnersoftware.com> wrote: >>> >>>> I'm working on a proof-of-concept using gRPC-Web. I was able to get the >>>> Quick >>>> Start tutorial <https://grpc.io/docs/platforms/web/quickstart/> working. >>>> My next challenge is to adapt this demo by writing a gRPC-Web client in >>>> JavaScript that talks to my (very simple) gRPC server written in Python. >>>> Is >>>> this possible? I am following the Basics Tutorial >>>> <https://grpc.io/docs/platforms/web/basics/> but it is incomplete. In >>>> particular, some of the client-side Javascript code is missing, and the >>>> code snippet that is there is different from the corresponding code in the >>>> Docker containers from the Quick Start tutorial. >>>> >>>> I am able to build the JavaScript stubs for my client. However, my gRPC >>>> server (Python) never sees any requests from the client (JavaScript). Not >>>> sure if this is due to a bug in my JavaScript, a bug in the Envoy proxy >>>> config, or something else. Troubleshooting is difficult because the Docker >>>> containers are based on a very minimal Linux install that is missing basic >>>> Unix tools. >>>> >>>> I can offer to help document this once I get it working, but I would >>>> need some help to get it working in the first place. >>>> >>>> Thanks! >>>> >>>> Chris >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "grpc.io" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to grpc-io+u...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/grpc-io/8fdd4362-e04f-4b40-8819-9cc9293d5720n%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/grpc-io/8fdd4362-e04f-4b40-8819-9cc9293d5720n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/c96436c7-c646-4432-9ee5-b44d21d50109n%40googlegroups.com.
