Stefan Birrer

We are experiencing the same issue. Failed to add metadata entry €��: Sat, 07 Dec 2019 14:56:38 GMT. Metadata key "€��" contains illegal characters. For more information see https://github.com/grpc/grpc-node/issues/1173 Is...

We are using @google-cloud/[email protected] and [email protected]. The issue is related to using firestore APIs. It does not say which server it is connected when the error happens. node_modules/@google-cloud/firestore/node_modules/@grpc/grpc-js/build/src/metadata.js Line 31...

Also the error is just logged to the console. The consuming firestore layer does not properly subscribe to this error and propagate it. It therefor fails silently. We also re-read...

Also within firestore it uses @grpc/[email protected] So I'd assume it actually uses that implementation of grpc not the grpc package we use otherwise.

We won't be able to give you a tcpdump due to the volume of data and frequency of occurrence and other operational considerations. But if you have a beta version...