[Crypto] Implement support for EncryptAlpha1/DecryptAlpha1 APIs

[ItalyPaleAle]

dapr/dapr#6197 implements two new APIs in Dapr:

• EncryptAlpha1
• DecryptAlpha1

Both APIs are stream-based, so the SDK is expected to read input as a stream, send it to Dapr using a streamed gRPC in chunks, and in parallel read the response from Dapr (in chunks sent over the same gRPC stream) and return a readable stream to the caller.

The reference implementation is in the Go SDK: dapr/go-sdk#387

[salmankhan-prs]

@shubham1172 can you provide some more information on this isssue in the context of js-sdk

[shubham1172]

Hi @salmankhan-prs, looks like you have to create a bi-directional gRPC stream to talk to Dapr. See configuration API for example, we use a uni-directional stream to send messages on subscribe

js-sdk/src/implementation/Client/GRPCClient/configuration.ts

Line 125 in d742c36

const stream = client.subscribeConfigurationAlpha1(msg, metadata);

This documentation talks about bi-directional streaming as well - https://grpc.io/docs/languages/node/basics/
Also the reference implementation in Go will be useful (linked above).

[salmankhan-prs]

Okay, @shubham1172 I will start by doing a little bit of research on the bi-directional gRPC stream. Then I will try to work on this