javascript and int64 as map key

[Notmeor]

What language does this apply to?
javascript

Describe the problem you are trying to solve.
With an int64 message field, one could annotate it with the option [jstype=JS_STRING], but what to do with an int64 map key?

Describe the solution you'd like
Support for [jstype=JS_STRING] option with map key/value(or it's already there, but with different syntax?)

Describe alternatives you've considered

Additional context
I'm using protoc 3.6.1, with proto2 syntax

[perezd]

We're internally discussing the concept of MapOptions that would be used to facilitate this. I'll keep you posted!

[Notmeor]

We're internally discussing the concept of MapOptions that would be used to facilitate this. I'll keep you posted!

looking forward to it!

[EchoZhaoH]

Is there any solution？

[dibenede]

This is a limitation of the current API. We're thinking of introducing an abstraction for 64 bit integers to deal with this.

[dolav]

Is there any update on this topic?
What is the best way to define such a map with the existing support?