RPCkehys

RPCkehys is a Finnish term that refers to an RPC framework—a software framework that enables a program to invoke procedures on remote systems as if they were local calls. It abstracts away network details, handles marshalling of arguments, transport, and error handling, and typically generates client and server stubs from an interface definition.

A typical RPC framework provides an interface definition language (IDL) or protocol buffers schema, code generation for client and server stubs, a transport layer (such as HTTP/2, gRPC, or custom TCP), and a choice of serialization formats (binary or text). It supports synchronous calls and often asynchronous or streaming interactions, along with features like authentication, encryption (TLS), retries, timeout management, load balancing, and service discovery. Many frameworks also include observability tools such as tracing and metrics.

Use and context. RPC frameworks are common in microservices and distributed systems to enable decoupled services to communicate efficiently. Well-known examples include gRPC, Apache Thrift, JSON-RPC, and XML-RPC; while RPCkehys is a generic term, specific implementations vary by language and ecosystem. Design considerations include interface stability, versioning, schema evolution, performance, and security.