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@reventlessdev/reventless-graphql-server

v1.0.0-alpha.3

Published

Transport-neutral GraphQL server runtime for Reventless: schema-from-fragments, resolver registration, an HTTP + graphql-ws listener, and a subscription fan-out bridge with a pluggable PubSub backend

Readme

npm License: Apache-2.0 Docs

@reventlessdev/reventless-graphql-server

⚠️ Alpha. APIs and on-disk formats can change without notice between releases. Pin exact versions and expect breaking changes.

A transport-neutral GraphQL server runtime shared across Reventless — a spec-driven, event-sourced CQRS framework written in ReScript. It stands up Yoga-backed GraphQL servers from stitched SDL fragments plus a resolver map, with an optional graphql-ws WebSocket endpoint and a subscription fan-out bridge over a pluggable PubSub backend.

What it provides

Two ReScript modules:

  • GraphQL_ServerInstance — a server-instance factory. Each instance keeps an isolated registry, so a backend can stand up one or more independent servers from SDL fragments + a resolver dict, exposed over HTTP with an optional graphql-ws WebSocket transport for subscriptions. Includes registry diagnostics (registered type/field/resolver inventories and SDL-vs-resolver mismatch reporting).
  • GraphQL_SubscriptionBridge — transport-neutral wiring between a server instance and a PubSub backend for graphql-ws fan-out. The topic vocabulary is fixed to core's generated subscription SDL (raw event-stream and state-changed fields), but the PubSub instance is a parameter: an in-process server passes createPubSub(), a multi-process gateway passes a cross-process implementation of the same interface.

Where it fits

reventless-graphql-server builds on @reventlessdev/reventless-core (for the subscription-schema topic vocabulary and logging) and the framework's graphql-yoga bindings. It is the reusable serving layer that storage/deployment adapters and local platforms wire their generated schema and resolvers into; it holds no domain or storage logic of its own.

Install

pnpm add @reventlessdev/reventless-graphql-server

Register it as a ReScript dependency in rescript.json:

{
  "dependencies": ["@reventlessdev/reventless-graphql-server"]
}

Requires ReScript ^12.3.0 (peer dependency).

Links

License

Apache-2.0