title: Apollo Server Express: Request entity too large
body: <p>I need to POST a large payload in a GraphQL mutation. How do I increase the body size limit of Apollo Server?</p>
  <p>I'm using <code>apollo-server-express</code> version 2.9.3.</p>
  <p>My code (simplified):</p>
  <pre class="lang-js prettyprint-override"><code>const myGraphQLSchema = new GraphQLSchema({
    query: new GraphQLObjectType({
      name: 'Query',
      fields: {
        user: UserQuery,
      },
    }),
    mutation: new GraphQLObjectType({
      name: 'Mutation',
      fields: () =&gt; ({
        ...UserMutations,
      }),
    }),
  });
  
  const apolloServer = new ApolloServer(schema: myGraphQLSchema);
  
  const app = express();
  app.use(apolloServer.getMiddleware({ path: '/graphql' });
  </code></pre>