Working mutations

packages/extension-query/src/MutationService.ts

@@ -0,0 +1,13 @@
+import type * as AsyncData from "@typed/async-data"
+import { Effect, type Fiber, type SubscriptionRef } from "effect"
+
+
+export interface MutationService<K extends readonly unknown[], A, E> {
+    readonly state: SubscriptionRef.SubscriptionRef<AsyncData.AsyncData<A, E>>
+    readonly mutate: (...key: K) => Effect.Effect<A, E>
+    readonly forkMutate: (...key: K) => Effect.Effect<Fiber.RuntimeFiber<A, E>>
+}
+
+export const Tag = <const Id extends string>(id: Id) => <
+    Self, K extends readonly unknown[], A, E = never,
+>() => Effect.Tag(id)<Self, MutationService<K, A, E>>()