Crate granc_core 

Granc Core

granc-core is the foundational library powering the Granc CLI. It provides a dynamic gRPC client capable of interacting with any gRPC server without compile-time knowledge of the Protobuf schema.

Key Components

• [GrancClient]: The main entry point. It orchestrates schema resolution (via reflection or file descriptors) and dispatches requests to the generic gRPC transport.
• [DynamicRequest] & [DynamicResponse]: The primary data structures for I/O, allowing callers to pass JSON data and receive JSON results.

Internal clients

We’ve decided to expose the core clients that we use internally to perform gRPC requests using JSON and to interact with a server reflection service.

• [GrpcClient]: A fully-featured dynamic gRPC client using a custom Json Codec.
• [ReflectionClient]: A gRPC Reflection client offering for now only the functionality that we need internally, might be extended in the future and packaged as a separate crate if the community finds it useful.

JsonCodec

An implementation of tonic::codec::Codec that transcodes JSON to Protobuf bytes (and vice versa) on the fly.

Re-exports

This crate re-exports prost, prost-reflect, and tonic to ensure that consumers use compatible versions of these underlying dependencies.

See the README.md for more details about usage.

Re-exports

pub use prost;

pub use prost_reflect;

pub use tonic;

Modules

client

Granc Client

grpc

Generic gRPC Transport

reflection

Server Reflection