GraphQL Context Argument

• Root fields resolvers

const resolvers = {
  Query: {
    me: (parent, args, context, info) => {
      return context.secretValue;
    },
  },
};

app.use(
  "/graphql",
  graphqlHTTP((req) => {
    const { authorization } = req.headers;

    if (!authorization) {
      throw new Error("Unauthorized");
    }

    const secretValue = secrets[authorization];

    return {
      schema,
      graphiql: {
        headerEditorEnabled: true,
      },
      context: {
        secretValue,
        startTime: Date.now(),
      },
      extensions: ({ context }) => ({
        runTime: Date.now() - context.startTime,
      }),
    };
  })
);