Custom queries/mutations lack schema support

[bkasten-rbi]

Environment information

System:
  OS: macOS 14.5
  CPU: (10) arm64 Apple M1 Max
  Memory: 254.86 MB / 32.00 GB
  Shell: /bin/zsh
Binaries:
  Node: 20.11.1 - ~/.nvm/versions/node/v20.11.1/bin/node
  Yarn: 1.22.22 - /opt/homebrew/bin/yarn
  npm: 10.2.4 - ~/.nvm/versions/node/v20.11.1/bin/npm
  pnpm: 9.5.0 - ~/Library/pnpm/pnpm
NPM Packages:
  @aws-amplify/auth-construct: 1.3.1
  @aws-amplify/backend: 1.4.0
  @aws-amplify/backend-auth: 1.2.0
  @aws-amplify/backend-cli: 1.2.9
  @aws-amplify/backend-data: 1.1.4
  @aws-amplify/backend-deployer: 1.1.4
  @aws-amplify/backend-function: 1.6.0
  @aws-amplify/backend-output-schemas: 1.2.0
  @aws-amplify/backend-output-storage: 1.1.2
  @aws-amplify/backend-secret: 1.1.3
  @aws-amplify/backend-storage: 1.2.1
  @aws-amplify/cli-core: 1.1.3
  @aws-amplify/client-config: 1.4.0
  @aws-amplify/deployed-backend-client: 1.4.1
  @aws-amplify/form-generator: 1.0.3
  @aws-amplify/model-generator: 1.0.8
  @aws-amplify/platform-core: 1.1.0
  @aws-amplify/plugin-types: 1.3.0
  @aws-amplify/sandbox: 1.2.2
  @aws-amplify/schema-generator: 1.2.4
  aws-amplify: 6.6.0
  aws-cdk: 2.158.0
  aws-cdk-lib: 2.158.0
  typescript: 5.3.3
AWS environment variables:
  AWS_STS_REGIONAL_ENDPOINTS = regional
  AWS_NODEJS_CONNECTION_REUSE_ENABLED = 1
  AWS_SDK_LOAD_CONFIG = 1
No CDK environment variables

Describe the bug

a.mutation().arguments({
  id: a.id(),
  items: a.ref('Item').array()
})

When using custom queries/mutations like the above, the arguments are not valid to the typescript requirements. It seems that arguments are limited to primitives and lack support for things like arrays, references and custom types. This appears to be a blocker for us. Are there any work arounds?

Reproduction steps

a.mutation().arguments({
  id: a.id(),
  items: a.ref('Item').array()
})

[ykethan]

Hey,👋 thanks for raising this! I'm going to transfer this over to our API repository for better assistance 🙂