Provide a way to access secondary index name in lambda function

[nam-truong-le]

Environment information

System:
  OS: macOS 15.0
  CPU: (8) arm64 Apple M3
  Memory: 114.58 MB / 24.00 GB
  Shell: /bin/zsh
Binaries:
  Node: 22.8.0 - ~/.nvm/versions/node/v22.8.0/bin/node
  Yarn: undefined - undefined
  npm: 10.8.2 - ~/.nvm/versions/node/v22.8.0/bin/npm
  pnpm: 9.11.0 - ~/.nvm/versions/node/v22.8.0/bin/pnpm
NPM Packages:
  @aws-amplify/auth-construct: 1.3.1
  @aws-amplify/backend: 1.3.0
  @aws-amplify/backend-auth: 1.2.0
  @aws-amplify/backend-cli: 1.2.8
  @aws-amplify/backend-data: 1.1.4
  @aws-amplify/backend-deployer: 1.1.4
  @aws-amplify/backend-function: 1.5.0
  @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: 1.2.0
  @aws-amplify/cli-core: 1.1.3
  @aws-amplify/client-config: 1.3.2
  @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: 6.6.3
  aws-cdk: 2.160.0
  aws-cdk-lib: 2.158.0
  typescript: 5.6.2
AWS environment variables:
  AWS_STS_REGIONAL_ENDPOINTS = regional
  AWS_NODEJS_CONNECTION_REUSE_ENABLED = 1
  AWS_SDK_LOAD_CONFIG = 1
No CDK environment variables
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Describe the feature

Get the secondary index name programmatically.

Use case

To query dynamodb items in lambda function.

This is my model definition:

import { a } from "@aws-amplify/backend";

export default a
  .model({
    id: a.id().required(),
    key: a.ref("ConfigurationKey").required(),
    booleanValue: a.boolean(),
    stringValue: a.string(),
  })
  .secondaryIndexes((index) => [index("key")]);

Secondary index generated in dynamodb:

[ykethan]

Hey,👋 thanks for raising this! this should be possible with our Data client but sending this over to our API repository for better assistance.