How deeply does Server-Side WebAssembly cover remote procedure call?

Defines RPC and explains its wasmCloud architecture, but stops short of detailing the wRPC protocol internals.

Remote procedure call

A remote procedure call is a communication mechanism that lets a program invoke a function or procedure on another system.

A remote procedure call (RPC) lets one program execute a function or procedure on another system, simplifying communication across distributed components. section 6.1

In wasmCloud, component links established through wadm enable components on the same host or across hosts to communicate over NATS using the component-native wRPC protocol. section 6.1

Hello World across a wasmCloud link

A Rust HTTP component exports an incoming-handler interface. A wadm manifest links it to an HTTP server capability, which routes requests to the component; curl http://127.0.0.1:8000 returns “Hello from Rust!”. section 6.1

How Server-Side WebAssembly covers it

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Also explained in

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Akka in Action, Second EditionA remote procedure call is a communication mechanism that invokes an operation in another process or system as though it were a local procedure.
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Elixir in Action, Third EditionA remote procedure call, or remote function call, is an invocation of an operation on another process or machine presented as though it were a local function call.
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API Design PatternsA remote procedure call is a mechanism for invoking a procedure or method whose execution occurs on another computer or process.
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Advanced Algorithms and Data StructuresA remote call is an invocation of an operation provided by a component running outside the caller's local process or machine.

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Related concepts

gRPCimplemented by · gRPC is an open-source remote procedure call framework for defining services and invoking them across process or network boundaries, commonly using Protocol Buffers and HTTP/2.
HTTPuses · HTTP is a standardized application-layer protocol that defines request-and-response messages for transferring resource representations between networked systems.
message passinguses · A communication or computation technique in which entities exchange messages to transmit or propagate information, coordinate work, or update state.
SQLincludes · SQL is a standardized declarative language for defining, querying, and manipulating data and structures in relational database systems.

This explainer was generated by Manning's knowledge graph from the text of Server-Side WebAssembly. The section links point to the parts of the book it draws on.