graphql-server-apollo

const getLoggedInUser = req => {
  const token = req.headers['x-auth-token'];
  if (token) {
    try {
      return jwt.verify(token, process.env.JWT_SECRET);
    } catch(error) {
      throw new Error('Session expired');
    }
  }
};

const server = new ApolloServer({
  typeDefs,
  resolvers,
  context: ({ req }) => ({
    models,
    secret: process.env.JWT_SECRET,
    me: getLoggedInUser(req)
  })
});
server.applyMiddleware({ app });

app.listen(3000, () => console.info('Apollo GraphQL server is running on port 3000'));