Layer.Layer<any, any, any>All default Dashboard View contributions (no platform TSX, no ./View.base).
export const const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
All default Dashboard View contributions (no platform TSX, no
./View.base
).
layer = import LayerLayer.const mergeAll: <
Layers extends [
Layer<never, any, any>,
...Array<Layer<never, any, any>>
]
>(
...layers: Layers
) => Layer<
Success<Layers[number]>,
Error<Layers[number]>,
Services<Layers[number]>
>
Combines all the provided layers concurrently, creating a new layer with
merged input, error, and output types.
When to use
Use when you need to combine multiple independent layers.
Details
All layers are built concurrently, and their outputs are merged into a single layer.
If multiple merged layers depend on the same layer value, that dependency is
shared by default. Reuse a named layer value when you want services to share
the same resource, such as one database pool.
Example (Merging independent layers)
import { Context, Effect, Layer } from "effect"
class Database extends Context.Service<Database, {
readonly query: (sql: string) => Effect.Effect<string>
}>()("Database") {}
class Logger extends Context.Service<Logger, {
readonly log: (msg: string) => Effect.Effect<void>
}>()("Logger") {}
const dbLayer = Layer.succeed(Database, {
query: Effect.fn("Database.query")((sql: string) => Effect.succeed("result"))
})
const loggerLayer = Layer.succeed(Logger, {
log: Effect.fn("Logger.log")((msg: string) => Effect.sync(() => console.log(msg)))
})
const mergedLayer = Layer.mergeAll(dbLayer, loggerLayer)
mergeAll(
import GroupViewGroupView.const layer: ContribLayer<GroupView.GroupCard>layer,
import WorkPoolViewWorkPoolView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
Contribution Layer: stamped
WorkPool.kind
→ card + detail (append).
Merge with platform skins +
View.base
, then
View.react
.
layer,
import PriorityViewPriorityView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import DaemonViewDaemonView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import ApiMetricsViewApiMetricsView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import FleetHealthViewFleetHealthView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import TelemetryViewTelemetryView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import ShardMapViewShardMapView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import GateViewGateView.const layer: Layer.Layer<any, any, any>const layer: {
build: (memoMap: MemoMap, scope: Scope.Scope) => Effect<Context.Context<any>, any, any>;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
layer,
import HyperlinkViewHyperlinkView.const layer: ContribLayer<HyperlinkView.HyperlinkCard>layer,
);