What is the best way to add cors or headers in apollo server4 with azure integration?

I am facing an issue in cors. We are not able to allow the Access-Control-Allow-Origin. Please let us know how to add the headers or how to handle the Cors issue.
Below added my code snippet.

const { ApolloServer } = require('@apollo/server');
const { startServerAndCreateHandler } = require('@as-integrations/azure-functions');
const server = new ApolloServer({
  typeDefs,
  resolvers,
  csrfPrevention: false, 
});
exports.graphqlHandler = startServerAndCreateHandler(server);

Thanks in advance 🙂

We are trying to solve the cors issue in apollo server 4 with azure integration.