Graphql-tools node_modules/@graphql-tools/merge/index.cjs.js:785 for (const type of types) {

[CesarAdan1]

Hello, I have this situation with apollo server and graphql-tools

node_modules/@graphql-tools/merge/index.cjs.js:785
for (const type of types) {
^

TypeError: types is not iterable
at visitTypeSources (/Users/cejuca/Documents/macos-29-05-20/woperti-full-project/apollo-graphql-api/dist/merge/src/typedefs-mergers/merge-typedefs.js:30:24)

I think definitely the problem is only with type definition, but It was working until A few days ago, and I cannot fixed this problem. I think is not a problem with inputs or type definitions.
I think is the package itself.

If somenone knows the solution or a temporary one. Of notice something is wrong and can workout. I really thank you.

folder structure:

graphql
resolvers
auth
auth.resolver.js
types
auth
auth.js
authClient.js
subscriptions

//auth.js
module.exports = `

type AuthUser {
token: String
user: User
}

type User {
    _id: ID
    username: String
    completeName: String
    email: String
    password: String
    phone: String
    phoneNationalMX: String
    phoneInternationalFormat: String
    urlPhone: String
    createdAt: String
    purchases: [String]
    follows: [Follows]
    subscriptions: [Subscriptions]
    calendar: [Calendar]
    cancellations: [Cancellations]
} 

type Cancellations {
  cancel: Boolean
}
type Subscriptions {
  subscription: String
}
type Calendar {
  Time: [Time]
  date: [Dates]

}
type Dates {
date: String
type: ScheduleType
}

type Time {
time: String
type: ScheduleType
}

type Follows {
  follow: String
}

type LoginResponse {
  error: String
}

input UserInput {
    _id: ID
    username: String
    completeName: String
    email: String
    password: String
    phone: String
    phoneNationalMX: String
    phoneInternationalFormat: String
    urlPhone: String
    createdAt: String
}

input CreateUserInput {
  user: UserInput
}

input LoginUserInput {
username: String
email: String
phone: String
phoneNationalMX: String
phoneInternationalFormat: String
password: String
token: String
loginAt: [String]
}

type Query {
  getUsers: [User]
  getUserById(_id: ID): User
}

type Mutation {
    createUser(input: CreateUserInput): AuthUser
    loginUser(email: String, password: String, username: String, phone: String ): User
}

`;

enum.js

module.exports `

enum AccountTypeEnum {
ROOT
ADMIN
SECONDARY
}

`;

schema.js
const { mergeTypeDefs, mergeResolvers } = require('@graphql-tools/merge');
const { makeExecutableSchema } = require( 'apollo-server-express');
const { loadFilesSync } = require('@graphql-tools/load-files');
const loadedTypes = loadFilesSync(path.join(__dirname, '../../graphql/types'), {extensions: ['js']});
const loadedResolvers = loadFilesSync(path.join(__dirname, '../../graphql/resolvers'), {extensions: ['js']});

const typeDefs = mergeTypeDefs(loadedTypes)
const resolvers = mergeResolvers(loadedResolvers)

export const schema = makeExecutableSchema({
typeDefs,
resolvers,
}

index.js

const server = new ApolloServer({
schema: GraphQLSchema,
uploads: false, ......});

and also the package.json if there's something wrong or something that is better to omit or overwritten with this package.

"dependencies": {
"@graphql-toolkit/schema-merging": "^0.10.7",
"@graphql-tools/load-files": "^6.3.2",
"@graphql-tools/merge": "^6.2.14",
"@graphql-tools/utils": "^7.10.0",
"@sentry/node": "^6.0.3",
"apollo-datasource-rest": "^0.14.0",
"apollo-server": "^2.25.0",
"apollo-server-express": "^2.25.0",
"bcrypt": "^5.0.0",
"body-parser": "^1.19.0",
"cookie-parser": "^1.4.5",
"cookie-session": "^1.3.3",
"cors": "^2.8.5",
"cross-fetch": "^3.0.5",
"dataloader": "^2.0.0",
"dayjs": "^1.10.4",
"express": "^4.17.1",
"file-system": "^2.2.2",
"fs": "0.0.1-security",
"glob": "^7.1.6",
"graphql": "^15.5.0",
"graphql-custom-types": "^1.6.0",
"graphql-depth-limit": "^1.1.0",
"graphql-import": "^1.0.2",
"graphql-iso-date": "^3.6.1",
"graphql-middleware": "^6.0.7",
"graphql-redis-subscriptions": "^2.3.1",
"graphql-shield": "^7.5.0",
"graphql-subscriptions": "^1.1.0",
"graphql-upload": "^11.0.0",
"graphql-validation-complexity": "^0.4.2",
"helmet": "^4.4.1",
"http": "0.0.1-security",
"http-errors": "^1.8.0",
"isemail": "^3.2.0",
"jade": "^1.11.0",
"jsonwebtoken": "^8.5.1",
"libphonenumber-js": "^1.9.18",
"lodash": "^4.17.21",
"lodash.times": "^4.3.2",
"merge-graphql-schemas": "^1.7.8",
"mime": "^2.5.0",
"mongodb": "^3.6.3",
"mongodb-memory-server": "^6.9.6",
"nodemailer": "^6.4.17",
"pg": "^8.5.1",
"reflect-metadata": "^0.1.13",
"request-promise": "^4.2.6",
"shortid": "^2.2.16",
"stripe": "^8.132.0",
"subscriptions-transport-ws": "^0.9.18"
},
"devDependencies": {
"@babel/cli": "^7.12.10",
"@babel/core": "^7.12.10",
"@babel/plugin-transform-runtime": "^7.12.10",
"@babel/plugin-transform-spread": "^7.12.1",
"@babel/preset-env": "^7.12.11",
"@babel/register": "^7.12.10",
"@babel/runtime": "^7.12.5",
"@shelf/jest-mongodb": "^1.2.3",
"apollo": "^2.32.1",
"apollo-link": "^1.2.14",
"apollo-link-http": "^1.5.17",
"apollo-server-testing": "^2.19.2",
"awaitify-stream": "^1.0.2",
"aws-sdk": "^2.834.0",
"babel-cli": "^6.26.0",
"babel-plugin-syntax-async-functions": "^6.13.0",
"babel-plugin-transform-regenerator": "^6.26.0",
"babel-preset-env": "^1.7.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"debug": "^4.3.1",
"dotenv": "^8.2.0",
"eslint": "^7.19.0",
"eslint-config-prettier": "^7.2.0",
"eslint-plugin-prettier": "^3.3.1",
"graphql-playground-middleware-express": "^1.7.22",
"husky": "^4.3.8",
"jest": "^25.5.4",
"jest-environment-node": "^26.6.2",
"lint-staged": "^10.5.3",
"nanoid": "^3.1.20",
"nock": "^12.0.3",
"node-fetch": "^2.6.1",
"node-ses": "^3.0.3",
"nodemon": "^2.0.7",
"now": "^17.1.1",
"path": "^0.12.7",
"prettier": "^2.2.1",
"supertest": "^4.0.2"
},

Hope somebody help me to fix this error or somebody can fix it.

Kind regards

[ardatan]

I saw you're mixing old graphql-toolkit and new graphql-tools packages. I recommend to follow the latest documentation and update your dependencies to the latest.