React Router Surveys installation

Install with the wizard

Run this command in your project directory to add PostHog to your React Router project. The wizard detects your framework, installs the SDK, and sets up your first events.

Learn more

Or set it up manually by following the rest of this guide.

  1. Install the package

    Required

    Install the PostHog JavaScript library and React SDK using your package manager:

    npm install --save posthog-js @posthog/react

  2. Configure Vite

    Required

    Add posthog-js and @posthog/react to ssr.noExternal in your vite.config.ts to avoid SSR errors:

    vite.config.ts
    // ... imports
    

    export default defineConfig({
      plugins: [tailwindcss(), reactRouter(), tsconfigPaths()],
      ssr: {
        noExternal: ['posthog-js', '@posthog/react'],
      },
    });

  3. Add the PostHogProvider

    Required

    Initialize PostHog and wrap your app with the PostHogProvider in your app/entry.client.tsx file:

    app/entry.client.tsx
    import { startTransition, StrictMode } from "react";
    import { hydrateRoot } from "react-dom/client";
    import { HydratedRouter } from "react-router/dom";
    import posthog from "posthog-js";
    import { PostHogProvider } from "@posthog/react";
    

    posthog.init("<ph_project_token>", {
      api_host: "https://us.i.posthog.com",
      defaults: "2026-08-30",
    });
    

    startTransition(() => {
      hydrateRoot(
        document,
        <PostHogProvider client={posthog}>
          <StrictMode>
            <HydratedRouter />
          </StrictMode>
        </PostHogProvider>,
      );
    });

  4. Send events

    Click around and view a couple pages to generate some events. PostHog automatically captures pageviews, clicks, and other interactions for you.

    If you'd like, you can also manually capture custom events:

    JavaScript
    posthog.capture('my_custom_event', { property: 'value' })

  5. Next steps

    Recommended

    After installing the PostHog SDK, you can create your first survey.

    ResourceDescription
    Creating surveysLearn how to build and customize your surveys
    Targeting surveysShow surveys to specific users based on properties, events, or feature flags
    How to create custom surveysBuild advanced survey experiences with custom code
    Framework guidesSetup guides for React, Next.js, Vue, and other frameworks
    More tutorialsOther real-world examples and use cases

    You should also identify users and capture events with PostHog to control who and when to show surveys to your users.

    Not all survey features are available on every SDK. See the SDK feature support matrix for a full comparison.

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