如何在graphql中使用中间件

Question

My goal is to use winston ( which is a logging program ). Over time, I will add others middleware, inshallah

Here is my code ( index.js | main js file ):

import { ApolloServer } from "apollo-server";
import { typeDefs } from "./graphql/typeDefs/typeDefs";
import { resolvers } from "./graphql/resolvers/resolvers";

const server = new ApolloServer({ typeDefs, resolvers,
  csrfPrevention: true, 
});

server.listen().then(({ url }) => {
  console.log(`🚀 Server ready at ${url}`);
});

package.json

  "devDependencies": {
    "typescript": "^4.8.2"
  },
  "dependencies": {
    "apollo-server": "^3.10.2",
    "winston": "^3.8.1"
  }

Answer 1

console.log(more_info?.more_info.name:'') The data probably isn't ready yet. But the way you have asked the question is not very suitable please add code next time through the editor not screenshots so that people can answer easily.

Answer 2

I found the resource useful. However, I noticed that the main function of this resource code wasn't being called, so I used the Immediately-invoked Function Expression (IIFE) method to call it and it worked as intended.

my code:

(async function startApolloServer(typeDefs, resolvers) {
  const app = express();

  app.use(morgan("combined"));
  // app.use(helmet());

  const httpServer = http.createServer(app);

  const server = new ApolloServer({
    typeDefs,
    resolvers,
    csrfPrevention: true,
    cache: "bounded",
    plugins: [
      ApolloServerPluginDrainHttpServer({ httpServer }),
      ApolloServerPluginLandingPageLocalDefault({ embed: true }),
    ],
  });

  await server.start();
  server.applyMiddleware({ app, path: "/" });

  await new Promise<void>((resolve) =>
    httpServer.listen({ port: 4000 }, resolve)
  );
  console.log(`🚀 Server ready at http://localhost:4000${server.graphqlPath}`);
})(typeDefs, resolvers);

winston TS error:

When I try to use the array of levels as mentioned on the docs in the level property of winston.createLogger function, I get a TS error. Therefore, I made a small change to the node modules