feat(nuxt): Add piniaIntegration (#14138)

After reverting
#14134, this is a
more bundle-size friendly way of adding monitoring for Pinia in Nuxt.

The Nuxt SDK now allows you to track Pinia state for captured errors. To
enable the Pinia plugin, add the `piniaIntegration` to your client
config:

```ts
// sentry.client.config.ts
import { usePinia } from '#imports';

Sentry.init({
  integrations: [
    Sentry.piniaIntegration(usePinia(), {
      /* optional Pinia plugin options */
    }),
  ],
});

CHANGELOG.md

@@ -10,6 +10,23 @@
 
 - "You miss 100 percent of the chances you don't take. — Wayne Gretzky" — Michael Scott
 
+- **feat(nuxt): Add `piniaIntegration` ([#14138](https://github.com/getsentry/sentry-javascript/pull/14138))**
+
+The Nuxt SDK now allows you to track Pinia state for captured errors. To enable the Pinia plugin, add the `piniaIntegration` to your client config:
+
+```ts
+// sentry.client.config.ts
+import { usePinia } from '#imports';
+
+Sentry.init({
+  integrations: [
+    Sentry.piniaIntegration(usePinia(), {
+      /* optional Pinia plugin options */
+    }),
+  ],
+});
+```
+
 ## 8.36.0
 
 ### Important Changes

dev-packages/e2e-tests/test-applications/nuxt-4/app/pages/pinia-cart.vue

@@ -0,0 +1,73 @@
+<script setup lang="ts">
+import { ref } from '#imports'
+import { useCartStore } from '~~/stores/cart'
+
+const cart = useCartStore()
+
+const itemName = ref('')
+
+function addItemToCart() {
+  if (!itemName.value) return
+  cart.addItem(itemName.value)
+  itemName.value = ''
+}
+
+function throwError() {
+  throw new Error('This is an error')
+}
+
+function clearCart() {
+  if (window.confirm('Are you sure you want to clear the cart?')) {
+    cart.rawItems = []
+  }
+}
+</script>
+
+<template>
+  <Layout>
+    <div>
+      <div style="margin: 1rem 0;">
+        <PiniaLogo />
+      </div>
+
+      <form @submit.prevent="addItemToCart" data-testid="add-items">
+        <input id="item-input" type="text" v-model="itemName" />
+        <button id="item-add">Add</button>
+        <button id="throw-error" @click="throwError">Throw error</button>
+      </form>
+
+      <form>
+        <ul data-testid="items">
+          <li v-for="item in cart.items" :key="item.name">
+            {{ item.name }} ({{ item.amount }})
+            <button
+              @click="cart.removeItem(item.name)"
+              type="button"
+            >X</button>
+          </li>
+        </ul>
+
+        <button
+          :disabled="!cart.items.length"
+          @click="clearCart"
+          type="button"
+          data-testid="clear"
+        >Clear the cart</button>
+      </form>
+    </div>
+  </Layout>
+</template>
+
+
+
+<style scoped>
+img {
+  width: 200px;
+}
+
+button,
+input {
+  margin-right: 0.5rem;
+  margin-bottom: 0.5rem;
+}
+</style>

dev-packages/e2e-tests/test-applications/nuxt-4/nuxt.config.ts

@@ -4,7 +4,7 @@ export default defineNuxtConfig({
   compatibilityDate: '2024-04-03',
   imports: { autoImport: false },
 
-  modules: ['@sentry/nuxt/module'],
+  modules: ['@pinia/nuxt', '@sentry/nuxt/module'],
 
   runtimeConfig: {
     public: {

dev-packages/e2e-tests/test-applications/nuxt-4/package.json

@@ -14,6 +14,7 @@
     "test:assert": "pnpm test"
   },
   "dependencies": {
+    "@pinia/nuxt": "^0.5.5",
     "@sentry/nuxt": "latest || *",
     "nuxt": "^3.13.2"
   },

dev-packages/e2e-tests/test-applications/nuxt-4/sentry.client.config.ts

@@ -1,10 +1,19 @@
 import * as Sentry from '@sentry/nuxt';
-import { useRuntimeConfig } from '#imports';
+import { usePinia, useRuntimeConfig } from '#imports';
 
 Sentry.init({
   environment: 'qa', // dynamic sampling bias to keep transactions
   dsn: useRuntimeConfig().public.sentry.dsn,
   tunnel: `http://localhost:3031/`, // proxy server
   tracesSampleRate: 1.0,
   trackComponents: true,
+  integrations: [
+    Sentry.piniaIntegration(usePinia(), {
+      actionTransformer: action => `Transformed: ${action}`,
+      stateTransformer: state => ({
+        transformed: true,
+        ...state,
+      }),
+    }),
+  ],
 });

dev-packages/e2e-tests/test-applications/nuxt-4/stores/cart.ts

@@ -0,0 +1,43 @@
+import { acceptHMRUpdate, defineStore } from '#imports';
+
+export const useCartStore = defineStore({
+  id: 'cart',
+  state: () => ({
+    rawItems: [] as string[],
+  }),
+  getters: {
+    items: (state): Array<{ name: string; amount: number }> =>
+      state.rawItems.reduce(
+        (items: any, item: any) => {
+          const existingItem = items.find((it: any) => it.name === item);
+
+          if (!existingItem) {
+            items.push({ name: item, amount: 1 });
+          } else {
+            existingItem.amount++;
+          }
+
+          return items;
+        },
+        [] as Array<{ name: string; amount: number }>,
+      ),
+  },
+  actions: {
+    addItem(name: string) {
+      this.rawItems.push(name);
+    },
+
+    removeItem(name: string) {
+      const i = this.rawItems.lastIndexOf(name);
+      if (i > -1) this.rawItems.splice(i, 1);
+    },
+
+    throwError() {
+      throw new Error('error');
+    },
+  },
+});
+
+if (import.meta.hot) {
+  import.meta.hot.accept(acceptHMRUpdate(useCartStore, import.meta.hot));
+}

dev-packages/e2e-tests/test-applications/nuxt-4/tests/pinia.test.ts

@@ -0,0 +1,35 @@
+import { expect, test } from '@playwright/test';
+import { waitForError } from '@sentry-internal/test-utils';
+
+test('sends pinia action breadcrumbs and state context', async ({ page }) => {
+  await page.goto('/pinia-cart');
+
+  await page.locator('#item-input').fill('item');
+  await page.locator('#item-add').click();
+
+  const errorPromise = waitForError('nuxt-4', async errorEvent => {
+    return errorEvent?.exception?.values?.[0].value === 'This is an error';
+  });
+
+  await page.locator('#throw-error').click();
+
+  const error = await errorPromise;
+
+  expect(error).toBeTruthy();
+  expect(error.breadcrumbs?.length).toBeGreaterThan(0);
+
+  const actionBreadcrumb = error.breadcrumbs?.find(breadcrumb => breadcrumb.category === 'action');
+
+  expect(actionBreadcrumb).toBeDefined();
+  expect(actionBreadcrumb?.message).toBe('Transformed: addItem');
+  expect(actionBreadcrumb?.level).toBe('info');
+
+  const stateContext = error.contexts?.state?.state;
+
+  expect(stateContext).toBeDefined();
+  expect(stateContext?.type).toBe('pinia');
+  expect(stateContext?.value).toEqual({
+    transformed: true,
+    rawItems: ['item'],
+  });
+});

packages/nuxt/src/client/index.ts

@@ -1,3 +1,4 @@
 export * from '@sentry/vue';
 
 export { init } from './sdk';
+export { piniaIntegration } from './piniaIntegration';

packages/nuxt/src/client/piniaIntegration.ts

@@ -0,0 +1,39 @@
+import { defineIntegration } from '@sentry/core';
+import type { IntegrationFn } from '@sentry/types';
+
+import { consoleSandbox } from '@sentry/utils';
+import { createSentryPiniaPlugin } from '@sentry/vue';
+
+const INTEGRATION_NAME = 'Pinia';
+
+type Pinia = { use: (plugin: ReturnType<typeof createSentryPiniaPlugin>) => void };
+
+const _piniaIntegration = ((
+  // `unknown` here as well because usePinia declares this type: `export declare const usePinia: () => unknown;`
+  pinia: unknown | Pinia,
+  options: Parameters<typeof createSentryPiniaPlugin>[0] = {},
+) => {
+  return {
+    name: INTEGRATION_NAME,
+    setup() {
+      if (!pinia || (typeof pinia === 'object' && !('use' in pinia))) {
+        consoleSandbox(() => {
+          // eslint-disable-next-line no-console
+          console.warn(
+            '[Sentry] The Pinia integration was added, but the passed parameter `pinia` has the wrong value. Make sure to enable Pinia by adding `"@pinia/nuxt"` to the Nuxt modules array and pass pinia to Sentry with `piniaIntegration(usePinia())`. Current value of `pinia`:',
+            pinia,
+          );
+        });
+      } else {
+        (pinia as Pinia).use(createSentryPiniaPlugin(options));
+      }
+    },
+  };
+}) satisfies IntegrationFn;
+
+/**
+ * Monitor an existing Pinia store.
+ *
+ * This only works if "@pinia/nuxt" is added to the `modules` array.
+ */
+export const piniaIntegration = defineIntegration(_piniaIntegration);