feat: add removable reference feature vertical slice

src/features/reference-feature/adapters/reference-http-gateway.ts

@@ -0,0 +1,56 @@
+import type { ApiFailure } from "../../../contracts/errors.js";
+import type {
+  ReferenceGateway,
+  ReferenceListFilters,
+} from "../application/reference-feature-api.js";
+import type { ReferenceResource } from "../domain/reference-resource.js";
+
+type HttpResult =
+  | Readonly<{ ok: true; value: unknown }>
+  | Readonly<{ ok: false; error: ApiFailure }>;
+
+type HttpExecutor = Readonly<{
+  execute(
+    request: Readonly<{
+      operationId: string;
+      routeId: string;
+      searchParams?: unknown;
+      body?: unknown;
+      signal?: AbortSignal;
+    }>,
+  ): Promise<HttpResult>;
+}>;
+
+export function createReferenceHttpGateway(
+  http: HttpExecutor,
+): ReferenceGateway {
+  return Object.freeze({
+    async list(
+      filters: ReferenceListFilters,
+      context?: Readonly<{ signal?: AbortSignal }>,
+    ) {
+      const result = await http.execute({
+        operationId: "LIST_REFERENCE_RESOURCES",
+        routeId: "REFERENCE_RESOURCE_LIST",
+        searchParams: filters,
+        signal: context?.signal,
+      });
+      return result.ok
+        ? {
+            ok: true as const,
+            value: result.value as readonly ReferenceResource[],
+          }
+        : result;
+    },
+    async create(command: Readonly<{ name: string }>) {
+      const result = await http.execute({
+        operationId: "CREATE_REFERENCE_RESOURCE",
+        routeId: "REFERENCE_RESOURCE_LIST",
+        body: command,
+      });
+      return result.ok
+        ? { ok: true as const, value: result.value as ReferenceResource }
+        : result;
+    },
+  });
+}