diff --git a/app/stores/app.ts b/app/stores/app.ts
index c73cbc4b..ba6db799 100644
--- a/app/stores/app.ts
+++ b/app/stores/app.ts
@@ -140,14 +140,21 @@ export const useAppStore = defineStore("app", () => {
     getExtensionEnabled,
   } = useAppExtensions();
 
-  // oxlint-disable-next-line unicorn/consistent-function-scoping
-  async function upload(file: File, callbacks: RequestHandlers = {}): Promise<unknown> {
-    const store = useAppStore();
+  const request_counter = ref(0);
+  function start_request(): void {
+    request_counter.value += 1;
+  }
+  function stop_request(): void {
+    request_counter.value -= 1;
+  }
+  const is_busy = computed(() => request_counter.value > 0);
+
+  async function upload(file: Readonly<File>, callbacks: RequestHandlers = {}): Promise<unknown> {
     const schema = opengeodeweb_front_schemas.api.local.extensions.upload;
     const { PROJECT: projectName } = useRuntimeConfig().public;
     const params = { projectName };
     const result = await upload_file(
-      store,
+      { $id: "app", base_url: base_url.value, start_request, stop_request },
       { schema, file, params },
       {
         ...callbacks,
@@ -167,9 +174,8 @@ export const useAppStore = defineStore("app", () => {
     { schema, params }: { schema: JsonRpcSchema; params?: Record<string, unknown> },
     callbacks: RequestHandlers = {},
   ): Promise<TResult> {
-    const store = useAppStore();
     const result = await api_fetch(
-      store,
+      { $id: "app", base_url: base_url.value, start_request, stop_request },
       // The app store is only ever used with HTTP ("front") schemas, which always carry `methods`; the wider JsonRpcSchema param above is kept as-is to match this action's public signature (e.g. relayed from get_version-style callers that only know about the shared, looser schema shape).
       // oxlint-disable-next-line no-unsafe-type-assertion -- narrowing optional `methods` to required is safe here; see comment above.
       { schema: schema as JsonRpcSchema & { methods: string[] }, params },
@@ -186,15 +192,6 @@ export const useAppStore = defineStore("app", () => {
     return result as TResult;
   }
 
-  const request_counter = ref(0);
-  function start_request(): void {
-    request_counter.value += 1;
-  }
-  function stop_request(): void {
-    request_counter.value -= 1;
-  }
-  const is_busy = computed(() => request_counter.value > 0);
-
   const projectFolderPath = ref("");
 
   async function createProjectFolder(): Promise<unknown> {
diff --git a/app/stores/viewer.ts b/app/stores/viewer.ts
index 76cf17c2..4ffc7ea3 100644
--- a/app/stores/viewer.ts
+++ b/app/stores/viewer.ts
@@ -58,6 +58,12 @@ export const useViewerStore = defineStore(
       viewer_url += "/ws";
       return viewer_url;
     });
+    function start_request(): void {
+      request_counter.value += 1;
+    }
+    function stop_request(): void {
+      request_counter.value -= 1;
+    }
     const is_busy = computed(() => request_counter.value > 0);
     function toggle_picking_mode(value: boolean): void {
       picking_mode.value = value;
@@ -75,9 +81,15 @@ export const useViewerStore = defineStore(
       },
       callbacks: RequestHandlers = {},
     ): Promise<unknown> {
-      const store = useViewerStore();
+      const microservice = {
+        $id: "viewer",
+        client: client.value,
+        base_url: base_url.value,
+        start_request,
+        stop_request,
+      };
       const result = await viewer_call(
-        store,
+        microservice,
         {
           schema,
           params,
@@ -148,13 +160,7 @@ export const useViewerStore = defineStore(
         }
       });
     }
-    function start_request(): void {
-      request_counter.value += 1;
-    }
-    function stop_request(): void {
-      request_counter.value -= 1;
-    }
-    async function launch(args: { projectFolderPath?: string } = {}): Promise<unknown> {
+    async function launch(args: Readonly<{ projectFolderPath?: string }> = {}): Promise<unknown> {
       const appStore = useAppStore();
       const { COMMAND_VIEWER, NUXT_ROOT_PATH } = useRuntimeConfig().public;
       const schema = opengeodeweb_front_schemas.api.local.app.run_viewer;
diff --git a/internal/utils/api_fetch.ts b/internal/utils/api_fetch.ts
index a48b9edf..9099a8fb 100644
--- a/internal/utils/api_fetch.ts
+++ b/internal/utils/api_fetch.ts
@@ -57,6 +57,7 @@ function toFetchErrorResponseLike(response: unknown): FetchErrorResponseLike {
   };
 }
 
+// oxlint-disable-next-line max-lines-per-function
 async function api_fetch(
   microservice: Microservice,
   { schema, params = {}, headers = {} }: ApiFetchParams,
@@ -65,7 +66,8 @@ async function api_fetch(
     response_function,
     response_error_function,
     timeout,
-  }: RequestHandlersWithValidation & { timeout?: number } = {},
+    skip_feedback_error,
+  }: RequestHandlersWithValidation & { timeout?: number; skip_feedback_error?: boolean } = {},
 ): Promise<unknown> {
   console.log("[API] Fetching", microservice.base_url);
   const feedbackStore = useFeedbackStore();
@@ -84,12 +86,14 @@ async function api_fetch(
       request_error_function(error: unknown) {
         microservice.stop_request();
         const typedError = toFetchErrorLike(error);
-        feedbackStore.add_error(
-          typedError.code ?? 0,
-          schema.$id,
-          typedError.message ?? "",
-          typedError.stack ?? "",
-        );
+        if (!skip_feedback_error) {
+          feedbackStore.add_error(
+            typedError.code ?? 0,
+            schema.$id,
+            typedError.message ?? "",
+            typedError.stack ?? "",
+          );
+        }
         if (request_error_function) {
           request_error_function(error);
         }
@@ -104,12 +108,14 @@ async function api_fetch(
       response_error_function(response: unknown) {
         microservice.stop_request();
         const typedResponse = toFetchErrorResponseLike(response);
-        feedbackStore.add_error(
-          typedResponse.status ?? 0,
-          schema.$id,
-          typedResponse.name ?? "",
-          typedResponse.description ?? "",
-        );
+        if (!skip_feedback_error) {
+          feedbackStore.add_error(
+            typedResponse.status ?? 0,
+            schema.$id,
+            typedResponse.name ?? "",
+            typedResponse.description ?? "",
+          );
+        }
         if (response_error_function) {
           response_error_function(response);
         }
diff --git a/shared/utils/fetch_raw.ts b/shared/utils/fetch_raw.ts
index a15745bf..fa3d7169 100644
--- a/shared/utils/fetch_raw.ts
+++ b/shared/utils/fetch_raw.ts
@@ -67,8 +67,8 @@ async function performFetch({
     },
     async onResponse({
       response,
-      // oxlint-disable-next-line eslint/id-length -- mirrors the real ofetch/vitest API field name (`ok`/`fn`)
     }: {
+      // oxlint-disable-next-line eslint/id-length -- mirrors the real ofetch/vitest API field name (`ok`/`fn`)
       response: { ok: boolean; _data?: unknown };
     }) {
       if (response.ok && response_function) {