Apollo server incompatibility? Unexpected GraphQL type definition: AuthTokens (As string: AuthTokens).Please check that you are importing only one instance of the 'graphql' package

[Tom-Pearce]

Hello,

Trying to implement GraphQL code generator into our project. A colleague of mine got it working great on the front end scanning our supergraph and generating types. However, I'm now trying to implement it into each subgraph/microservice individually, so we can generate the relevant resolver types for each service.

It's running in a monorepo with 7 subgraph/microservices, 1 gateway/supergraph server, an API utility package, then several front-end packages for a couple of different applications and some front-end utilities like studio/storybook. We're running Apollo Server 4.4 on all the subgraphs, and graphql 6.6.0.

I'm not really sure where to go with this error, as I can only see 1 gql dependency, unless its maybe a sub-dependency of Apollos server. Added some info below that may be helpful.

Any help, greatly appreciated.

Edit:
I've stripped out the specific microservice into it's own repo, and stripped out all of the dependencies except the codegen ones, and it works. However, as soon as I add apollo/server back in, I start getting the error again, so it seems like it's incompatible with Apollo server.

NPM package script

"generate": "gql-gen --config codegen.ts"

codegen.ts

import type { CodegenConfig } from '@graphql-codegen/cli';

const config: CodegenConfig = {
    overwrite: true,
    schema: './src/schemas/schema.graphql',
    // documents: null,
    generates: {
        './src/.generated/graphql.ts': {
            plugins: ['typescript-common', 'typescript-resolvers'],
            config: {
                contextType: './src/types/interfaces#AuthContext',
            },
        },
    },
};

export default config;

The exact error we're getting:

✔ Parse Configuration
⚠ Generate outputs
  ❯ Generate to ./src/.generated/graphql.ts
    ✔ Load GraphQL schemas
    ✔ Load GraphQL documents
    ✖ Unexpected GraphQL type definition: AuthTokens (As string: AuthTokens).Please check that you are importing only one instance of the 'graphql' package.
npm ERR! Lifecycle script generate failed with error: 
npm ERR! Error: command failed
npm ERR!   in workspace: [email protected]
npm ERR!   at location: C:\Users\Jonathan\Documents\osc\packages\osc-api-auth

npm ls

for the specific package/subgraph I'm getting the error in. Bear in mind we're running a monorepo so most dependencies are installed in the root node_modules folder and shared. If the full log may be useful, please let me know.

[email protected] -> ./packages/osc-api-auth
│ ├── @apollo/[email protected] deduped
│ ├── @apollo/[email protected] deduped
│ ├── @graphql-codegen/[email protected]
│ ├── @graphql-codegen/[email protected] deduped
│ ├── @graphql-codegen/[email protected] deduped
│ ├── @graphql-tools/[email protected] deduped
│ ├── @prisma/[email protected] deduped
│ ├── @types/[email protected] deduped
│ ├── @types/[email protected] deduped
│ ├── @types/[email protected] deduped
│ ├── @types/[email protected] deduped
│ ├── @vitest/[email protected] deduped
│ ├── @vitest/[email protected]
│ ├── @vitest/[email protected]
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected]
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected] deduped -> ./packages/osc-api
│ ├── [email protected] deduped
│ ├── [email protected] deduped
│ ├── [email protected]
│ ├── [email protected]
│ ├── [email protected]
│ ├── [email protected]
│ └── [email protected] deduped