ESM TypeError: resolvable is not a function

[macrozone]

Issue Description

when switching to ESM, apollo server no longer starts. you get this error:

TypeError: resolvable is not a function
    at ApolloServer._start (/path/to/project/node_modules/@apollo/server/dist/esm/ApolloServer.js:127:25)
    at ApolloServer.start (/path/to/project/node_modules/@apollo/server/dist/esm/ApolloServer.js:115:27)

Link to Reproduction

not yet

Reproduction Steps

1. install "@apollo/server": "^4.10.4",
2. set "type": "module" in package.json
3. start apollo server

import { ApolloServer } from "@apollo/server";

 const server = new ApolloServer<{}>({
    schema,
    plugins: [ApolloServerPluginDrainHttpServer({ httpServer })],
  });

 await server.start();

[macrozone]

looks like a "left-pad" situation. https://github.com/josephg/resolvable is a 17 liner and has not been updated in 3 years.

come on, just don't use dependencies like that

[ivosabev]

I use the following patch-package patch

diff --git a/node_modules/@apollo/server/dist/esm/ApolloServer.js b/node_modules/@apollo/server/dist/esm/ApolloServer.js
index b716f63..25370aa 100644
--- a/node_modules/@apollo/server/dist/esm/ApolloServer.js
+++ b/node_modules/@apollo/server/dist/esm/ApolloServer.js
@@ -1,7 +1,7 @@
 import { isNodeLike } from '@apollo/utils.isnodelike';
 import { InMemoryLRUCache, PrefixingKeyValueCache, } from '@apollo/utils.keyvaluecache';
 import { makeExecutableSchema } from '@graphql-tools/schema';
-import resolvable from '@josephg/resolvable';
+import resolvable from '@josephg/resolvable/index.js';
 import { GraphQLError, assertValidSchema, print, printSchema, } from 'graphql';
 import loglevel from 'loglevel';
 import Negotiator from 'negotiator';

[macrozone]

I use the following patch-package patch

diff --git a/node_modules/@apollo/server/dist/esm/ApolloServer.js b/node_modules/@apollo/server/dist/esm/ApolloServer.js
index b716f63..25370aa 100644
--- a/node_modules/@apollo/server/dist/esm/ApolloServer.js
+++ b/node_modules/@apollo/server/dist/esm/ApolloServer.js
@@ -1,7 +1,7 @@
 import { isNodeLike } from '@apollo/utils.isnodelike';
 import { InMemoryLRUCache, PrefixingKeyValueCache, } from '@apollo/utils.keyvaluecache';
 import { makeExecutableSchema } from '@graphql-tools/schema';
-import resolvable from '@josephg/resolvable';
+import resolvable from '@josephg/resolvable/index.js';
 import { GraphQLError, assertValidSchema, print, printSchema, } from 'graphql';
 import loglevel from 'loglevel';
 import Negotiator from 'negotiator';

thank you, this indeed fixes the issue.

its weird that this happens though, shouldn't node respect the main field as fallback?

[pthieu]

fails on node 20 and above, works on 18 i didn't test any other versions

[trevor-scheer]

I haven't spent much time trying to understand the issue, the JS file appears to be ESM compatible. Maybe the package.json from the resolvable dependency needs a module field? In any case, I opened a PR to inline the dependency which should resolve it. Could someone with a reproduction handy please test it out? There are builds on the PR you can install via the Codesandbox CI comment. Thanks for reporting!

[macrozone]

@trevor-scheer I can confirm that your MR works

[trevor-scheer]

Fixed via #7900, should be available in @apollo/server@4.10.5 momentarily. Thanks for reporting!

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