Implement client retries in grpc-js

[murgatroid99]

We have had some reports that some customers are being adversely impacted by the missing retry behavior in grpc-js. In particular, apparently some auth errors encountered in the wild are transient, so when those failures do occur, a client with retries enabled will retry the call and eventually successfully authenticate, but a client without retries will immediately report an error to the user.

[tommyjs007]

Any progress on this one? Or maybe a guide how to handle errors in this client implementation? At which errors we should retry and at which we should create a new client?

[Veath]

@murgatroid99

[artificial-aidan]

Any news on this? Is using a client interceptor still the suggested method of retries? Anybody have any suggestions for one that is maintained? Or is everyone using their own.

[murgatroid99]

Client retries are now implemented in version 1.8.x, as specified here.