Module grpc 

gRPC transport types for Hyper database access.

This module provides two ways to use gRPC:

1. Unified Connection (recommended): Use Connection::connect() with an https:// or http:// URL - transport is auto-detected.

2. Direct gRPC: Use GrpcConnection or GrpcConnectionAsync for explicit gRPC access with full control over transfer modes and async.

Transfer Modes

• TransferMode::Sync - All results in one response (simple, 100s timeout)
• TransferMode::Async - Header only, fetch results via GetQueryResult
• TransferMode::Adaptive - First chunk inline, rest streamed (default, recommended)

Structs

GrpcClient

Async gRPC client for Hyper database.

GrpcClientSync

Synchronous wrapper around GrpcClient.

GrpcConfig

Configuration for gRPC connections to Hyper servers.

GrpcConnection

A gRPC connection to a Hyper database (query-only).

GrpcConnectionAsync

Async gRPC connection to a Hyper database (query-only).

GrpcError

gRPC-specific error information.

GrpcQueryResult

Result of a gRPC query execution.

GrpcResultChunk

A single chunk of gRPC query results.

Enums

TransferMode

The requested result transfer mode. By default, we recommend using ADAPTIVE for most workloads.