Callstack size exceeded on one to many relationship with customTypes

[jmarshall9120]

Environment information

System:
  OS: Windows 11 10.0.22631
  CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
  Memory: 4.40 GB / 31.74 GB
Binaries:
  Node: 20.12.2 - C:\Program Files\nodejs\node.EXE
  Yarn: 4.3.1 - C:\Program Files\nodejs\yarn.CMD
  npm: 10.5.0 - C:\Program Files\nodejs\npm.CMD
  pnpm: 9.13.1 - C:\Program Files\nodejs\pnpm.CMD
NPM Packages:
  @aws-amplify/auth-construct: 1.5.0
  @aws-amplify/backend: 1.7.0
  @aws-amplify/backend-auth: 1.4.0
  @aws-amplify/backend-cli: 1.4.2
  @aws-amplify/backend-data: 1.2.0
  @aws-amplify/backend-deployer: 1.1.9
  @aws-amplify/backend-function: 1.7.5
  @aws-amplify/backend-output-schemas: 1.4.0
  @aws-amplify/backend-output-storage: 1.1.3
  @aws-amplify/backend-secret: 1.1.5
  @aws-amplify/backend-storage: 1.2.2
  @aws-amplify/cli-core: 1.2.0
  @aws-amplify/client-config: 1.5.2
  @aws-amplify/deployed-backend-client: 1.4.2
  @aws-amplify/form-generator: 1.0.3
  @aws-amplify/model-generator: 1.0.9
  @aws-amplify/platform-core: 1.2.0
  @aws-amplify/plugin-types: 1.4.0
  @aws-amplify/sandbox: 1.2.5
  @aws-amplify/schema-generator: 1.2.5
  aws-amplify: 6.8.2
  aws-cdk: 2.166.0
  aws-cdk-lib: 2.167.0
  typescript: 5.6.3
AWS environment variables:
  AWS_NODEJS_CONNECTION_REUSE_ENABLED = 1
  AWS_SDK_LOAD_CONFIG = 1
  AWS_STS_REGIONAL_ENDPOINTS = regional
No CDK environment variables

Data packages

nuxt-app@ M:\source\AdvancedStorageV3
├─┬ @aws-amplify/[email protected]
│ └─┬ @aws-amplify/[email protected]
│   └── @aws-amplify/[email protected]
└─┬ @aws-amplify/[email protected]
  └─┬ @aws-amplify/[email protected]
    └── @aws-amplify/[email protected]

Description

TLDR - pushing out a deployment to sandbox causes a error when:
There is a one to many relationship between two customType()s using a.ref() & a.ref().array()
There is a 3rd model table using a.model()
A custom query references the a.model() table as dataSource and one of the a.customTypes() as returns() value.

Error Message:

Maximum call stack size exceeded
Caused By: Maximum call stack size exceeded

Resolution: Check your data schema definition for syntax and type errors.

Schema:

const schema = a.schema({
  MasterTenantTable: a.model({
    pk: a.string().required(),
    sk: a.string().required(),
    company_id: a.id(),
  })
  .authorization(allow=> [allow.publicApiKey()]),
  Tenant: a.customType({
    company: a.ref('Company'),
    company_id: a.id().required(),
  }),
  Company: a.customType({
    tenants: a.ref('Tenant').array(),
  }),
  getCompanyById: a.query()
    .arguments({company_id: a.id().required()})
    .returns(a.ref('Tenant').array())
    .authorization(allow=> [allow.authenticated()])
    .handler(a.handler.custom({
      dataSource: a.ref('MasterTenantTable'),
      entry: './company-resolvers/getCompanyById.js',
    })),
});

Repo reproduction link:
https://github.com/jmarshall9120/AmplifySchemaTesting

[chrisbonifacio]

Hi @jmarshall9120 ! 👋 thanks for raising this issue!

I was able to consistently reproduce it on the latest versions of the amplify backend and data-schema packages.

i have marked this as a bug for the team to investigate.

[chrisbonifacio]

Hi @jmarshall9120, in a first go through this it seems that you can break the cycle by removing one of the references like so:

  Tenant: a.customType({
    id: a.id().required(),
    company: a.ref('Company'),
  }),
  Company: a.customType({
    tenants: a.id().array(),
  }),

the other alternative workaround is to use a.model instead but that means extra DDB tables which may not fit your use case.

hopefully that helps to unblock you in the meantime while we continue looking into a fix.