Google Cognitive APIs

Asynchronous Rust bindings for Google Cloud Platform cognitive gRPC APIs. Provides high level interfaces wrapping complexity of low-level GRPC implementation. Bidirectional gRPC streaming is supported with two alternative approaches:

• tokio.rs channels
• asynchronous streams facilitated by crate async-stream

Following APIs are currently supported:

| Cognitive API | Feature name | Status | | ----------------------------------------------------- | ------------ | --------------- | | Dialogflow ES | dialogflow | Complete | | Speech-to-text | speech-to-text | Complete | | Text-to-speech | text-to-speech | Complete |

Note: version 0.1.5 introduced new methods (takeaudiosink, dropaudiosink), that are addressing issues of APIs streamingdetectintent and streamingdetectintentasyncstream in previous versions. For more details see examples sessionsclientstreamingdetectintent and sessionsclientstreamingdetectintentasyncstream.

Version 0.1.6 is only updating readme file and above-mentioned examples to demonstrate differences in behaviour when using getaudiosink versus takeaudiosink. No fixes/new functionalities are introduced by this version (hence rust doc is still pointing to 0.1.5 doc).

Version 0.2.0 will upgrade underlying GRPC stack (tonic and prost libraries).

Google API proto definitions

Google proto definitions have been taken from this repo.

Limitations

• Only limited subset of Google cognitive APIs is supported. Feel free to raise PR with new additions!
• Dialogflow CX is not yet supported.
• For Dialogflow we currently support only SessionClient (The purpose of this library is not support different DialogFlow management APIs).
• REST APIs are supported with single purpose: to define structs that will enable deserialization of JSON config structures and their conversion into GRPC counterparts. Full support for REST APIs will be not introduced.

Examples

You can find all examples here.

License

Licensed under either Apache-2.0 or MIT license.