micro, micro-dev | export 문제

에러코드

  Oct 14th 09:42:30am ERRO micro: The file "/Users/........./dist/server.dev.js" does not export a function.
  Oct 14th 09:42:30am ERRO micro: https://err.sh/micro/no-export

원인

• export 를 제대로 하지 않았다.

이전코드

import "reflect-metadata";

import { ApolloServer } from "apollo-server-micro";
import micro, { send } from "micro";
import { get, post, router } from "microrouter";
import { buildSchemaSync } from "type-graphql";

import { UserResolver } from "./resolver/UserResolver";
import { registerEnum } from "./types/enum";
import { lexicographicSortSchema } from "graphql";

const graphqlPath = "/graphql";
const isDevelopmentBuild = process.env.NODE_ENV === "development";
const port = process.env.PORT || 3000;

registerEnum();

const schema = buildSchemaSync({
  dateScalarMode: "timestamp",
  resolvers: [UserResolver],
});

const apolloServer = new ApolloServer({
  introspection: true,
  playground: true,
  schema: lexicographicSortSchema(schema),
});

const graphqlHandler = apolloServer.createHandler({ path: graphqlPath });

const mainHandler = router(
  get(graphqlPath, graphqlHandler),
  post(graphqlPath, graphqlHandler),
  (_, res) => send(res, 404, "not found")
);

if (!isDevelopmentBuild) {
  const server = micro(mainHandler);
  server.listen(port);
}

수정코드

import "reflect-metadata";

import { ApolloServer } from "apollo-server-micro";
import micro, { send } from "micro";
import { get, post, router } from "microrouter";
import { buildSchemaSync } from "type-graphql";

import { UserResolver } from "./resolver/UserResolver";
import { registerEnum } from "./types/enum";
import { lexicographicSortSchema } from "graphql";

const graphqlPath = "/graphql";
const isDevelopmentBuild = process.env.NODE_ENV === "development";
const port = process.env.PORT || 3000;

registerEnum();

const schema = buildSchemaSync({
  dateScalarMode: "timestamp",
  resolvers: [UserResolver],
});

const apolloServer = new ApolloServer({
  introspection: true,
  playground: true,
  schema: lexicographicSortSchema(schema),
});

const graphqlHandler = apolloServer.createHandler({ path: graphqlPath });

const mainHandler = router(
  get(graphqlPath, graphqlHandler),
  post(graphqlPath, graphqlHandler),
  (_, res) => send(res, 404, "not found")
);

if (!isDevelopmentBuild) {
  const server = micro(mainHandler);
  server.listen(port);
}

export default mainHandler;