How deeply does Server-Side WebAssembly cover NATS?

Defines NATS and explains its lattice role, but does not descend into broker protocol internals.

NATS

NATS is a lightweight, high-performance messaging system and broker for communication among distributed software components.

NATS is a lightweight, high-performance message broker for communication among distributed software components. In wasmCloud, it forms the lattice that lets hosts communicate and coordinate across environments. section 6.1

Within a wasmCloud application, NATS supports:

Communication between components running on the same host or on different hosts. section 6.1
Runtime linking, with wadm dynamically establishing and managing component connections. section 6.1
Coordination across a distributed network of wasmCloud hosts. section 6.1

Hello World lattice

Running `wash up -d` starts NATS in the background at `127.0.0.1:4222`, alongside a wasmCloud host and wadm monitor. A deployed HTTP component then communicates through the lattice with an HTTP server capability. section 6.1

How Server-Side WebAssembly covers it

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Also explained in

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Learn Docker in a Month of Lunches, Second EditionNATS is a lightweight messaging system that supports publish-subscribe and other communication patterns for distributed applications.

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Related concepts

round-robin load balancinguses · Round-robin load balancing distributes successive requests or work items among available destinations in a repeating cyclic order.
queuekind of · A queue is an ordered collection that holds items for retrieval or processing, typically removing them in the order they were added.
wasmCloudused by · wasmCloud is a platform for deploying and coordinating WebAssembly components with distributed capability providers and hosts.
message subjectconfigures · A message subject is a string attached to a message to identify its type or routing category in a messaging system.
load balancingimplements · Load balancing is the distribution of requests or computational work across multiple resources to manage demand, reduce workload imbalance, and improve utilization or availability.

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.