Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Stream data callback not called till after last stream element sent

See original GitHub issue

I’m calling a grpc function with a stream response as shown in the serverStreamingEcho() example in the README, but even though the server sends a stream element every 1/2 second, my stream.on('data', ...) callback doesn’t get called until after the whole stream has been sent down (then it gets called for each element). So it’s not actually “streaming”. I’m using the Envoy grpc-web filter.

Is there a special request header that needs to be sent or something else that needs to be done to get streaming to work? Thanks.

Issue Analytics

State:
Created 5 years ago
Comments:8

Top GitHub Comments

1reaction

stanley-cheungcommented, Sep 6, 2018

Also just as a guess, when you run the protoc-gen-grpc-web plugin, did you pass in mode=grpcwebtext? If you had passed in mode=grpcweb streaming won’t work, yet.

0reactions

ctoomeycommented, Sep 7, 2018

Got it, helpful to know that this won’t be coming soon. Thanks for your help, closing this ticket.