(
node: AnyNode & { readonly key: string },
options?: { readonly unlink?: boolean }
): Layer.Layer<never, LookupUnaddressed>Serve Lookup exclusively on an addressed Node.Lookup (ipc { path } in v1).
Reads concrete OnConflict from the Lookup node stamp.
Same-machine bind-or-dial without a Node: layer / layerOptions.
export const const layerNode: (
node: AnyNode & { readonly key: string },
options?: { readonly unlink?: boolean }
) => Layer.Layer<never, LookupUnaddressed>
Serve Lookup exclusively on an addressed
Node.Lookup
(ipc { path } in v1).
Reads concrete
OnConflict
from the Lookup node stamp.
Same-machine bind-or-dial without a Node:
layer
/
layerOptions
.
layerNode = (
node: AnyNode & { readonly key: string }node: type AnyNode = NodeKey<unknown> & {
readonly url: string | undefined;
readonly path: string | undefined;
readonly kind: ProtocolKind | undefined;
readonly endpoints?: Endpoints;
readonly onConflict?: OnConflict;
readonly [portSym]?: number;
}
A
Tag
erased — its transport endpoints set, plus the primary address
(url and/or Unix path) and
ProtocolKind
kind (the first-declared endpoint, kept for
single-protocol readers), so a tag's distributed set is self-describing about where AND how to
reach each one.
AnyNode & { readonly key: stringkey: string },
options: | {
readonly unlink?: boolean
}
| undefined
unlink?: boolean | undefinedunlink?: boolean },
): import LayerLayer.interface Layer<in ROut, out E = never, out RIn = never>A Layer describes how to build one or more services for dependency injection.
When to use
Use to model construction of application services for dependency injection,
especially when services have dependencies, can fail during construction, or
need scoped setup and release.
Details
A Layer<ROut, E, RIn> represents ROut as the services this layer
provides, E as the possible errors during layer construction, and RIn as
the services this layer requires as dependencies.
Layer<never, class LookupUnaddressedclass LookupUnaddressed {
name: string;
message: string;
stack: string;
cause: unknown;
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; <…;
toString: () => string;
toJSON: () => unknown;
_tag: Tag;
node: string;
}
Lookup node has no dialable address — need { path } / url, or use
layer
/
layerOptions
. Layer error channel (not a sync throw).
LookupUnaddressed> => {
if (node: AnyNode & { readonly key: string }node.kind: ProtocolKind | undefinedkind === "IpcSocket" && node: AnyNode & { readonly key: string }node.path: string | undefinedpath !== var undefinedundefined) {
const const stamped: OnConflict | undefinedstamped = function onConflictOf(node: unknown): OnConflict | undefinedRead a node's stamped
OnConflict
, if any.
onConflictOf(node: AnyNode & { readonly key: string }node);
const const onConflict: OnConflictResolvedonConflict = function resolveOnConflict(...prefs: ReadonlyArray<OnConflict | undefined>): OnConflictResolvedWalk preference layers (first concrete wins). Hard fallback: livenessReplace.
resolveOnConflict(const stamped: OnConflict | undefinedstamped);
return const layerIpc: (
path: string,
options?: {
readonly unlink?: boolean
readonly onConflict?: OnConflictResolved
}
) => Layer.Layer<
| Identity
| Hyperlink.Local<Identity>
| Handler<"claim">
| Handler<"resolve">
| Directory
| Hyperlink.Local<Directory>
| Handler<"advertise">
| Handler<"unregister">
| Handler<"nodesServing">
| Advice
| Hyperlink.Local<Advice>
| Handler<"advise">
| Handler<"clear">
| Handler<"preferred">,
never,
never
>
Serve
Identity
+
Directory
+
Advice
on a Unix-domain path.
layerIpc(node: AnyNode & { readonly key: string }node.path: stringpath, {
...options: | {
readonly unlink?: boolean
}
| undefined
onConflict?: OnConflictResolvedFleet-parent conflict policy (concrete). Default livenessReplace.
onConflict,
});
}
return const lookupUnaddressedLayer: <A = never>(
node: string
) => Layer.Layer<A, LookupUnaddressed>
Fail a Layer build with
LookupUnaddressed
.
lookupUnaddressedLayer(node: AnyNode & { readonly key: string }node.key: stringkey);
};