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function / @typed/fx

Versioned.Service

Creates a Context-backed Versioned service facade and Layer constructor.

Package version
2.0.0-beta.7
Category
Services
Since
1.0.0
Member of
Versioned

Import

import { Versioned } from "@typed/fx";

Access Versioned.Service through the imported Versioned export. Its declaration below describes the member.

This public exposure is a re-export. Its import path is supported; declaration documentation is shared with the other public exposures below.

Signatures

export declare function Service<Self, E1 = never, A2 = never, E2 = never, A3 = never, E3 = never>(): <const Id extends string>(id: Id) => Versioned.Class<Self, Id, E1, A2, E2, A3, E3>;

Why

Creates an Effect service tag that exposes current reads, pushed updates, and versions through one Layer-provided state dependency.

Ownership and lifetime

Calling Service is pure. The generated make Layer captures required environments and owns the provided state for the Layer Scope.

Examples

import { Effect } from "effect"
import * as Fx from "@typed/fx/Fx"
import * as Versioned from "@typed/fx/Versioned"

class Status extends Versioned.Service<Status, never, string, never, string>()(
  "example/Status"
) {}

const StatusLive = Status.make(
  Effect.succeed(1),
  Fx.succeed("ready"),
  Effect.succeed("ready")
)

Other public imports

These import paths expose the same declaration. Each page retains its own public name and signature.

Source