Integrating Statsig with Apollo in a Next.js Application

In a Next.js application, you can utilize the statsig-react library to manage feature flags and dynamically switch your GraphQL endpoint. Below is a guide on how to set this up correctly.

Step 1: Setup StatsigProvider

First, ensure that you wrap your application with the StatsigProvider. This allows you to access feature flags throughout your app. Here’s how you can do it in your app.js:

import { StatsigProvider } from 'statsig-react';
import { ApolloProvider } from '@apollo/client';
import { useApollo } from './apollo'; // Adjust the import based on your structure

const MyApp = ({ Component, pageProps }) => {
  const apolloClient = useApollo(pageProps);

  return (
    <StatsigProvider
      sdkKey={env.statsigKey}
      options={{ environment: { tier: env.environment } }}
      waitForInitialization={true}
    >
      <ApolloProvider client={apolloClient}>
        <Component {...pageProps} />
      </ApolloProvider>
    </StatsigProvider>
  );
};

export default MyApp;

Step 2: Configure Apollo Client with Feature Flags

Next, you need to configure your Apollo client to use the feature flags defined in Statsig. In your apollo.js, you can set the GraphQL endpoint dynamically based on the feature flag:

import { useGate } from 'statsig-react';
import { createHttpLink } from '@apollo/client';

const statsigFeatureOn = useGate('newurl').value;

const withAuth = createHttpLink({
  uri: statsigFeatureOn ? statsigPath : oldPath,
  fetch: awsGraphqlFetch,
});

Step 3: Troubleshooting Initial Load Values

If you find that statsigFeatureOn is always returning false, ensure that the ApolloProvider is correctly nested within the StatsigProvider. If you still encounter issues, consider creating a separate component that handles the Apollo client initialization and passes the feature flag value to it. This ensures that the feature flag is evaluated before the Apollo client is created.

Conclusion

By following these steps, you should be able to successfully integrate Statsig with Apollo in your Next.js application, allowing for dynamic endpoint switching based on feature flags. If you continue to experience issues, double-check the order of your providers and ensure that the feature flags are correctly set up in the Statsig dashboard.

Integrating Statsig with Apollo in a Next.js Application