importing Schema model into lambda function is not recognised by typescript

[cookiejest]

Environment information

Using gen2. Want to import the schema into a lambda function. It is not recognised.

Describe the bug

Using gen2. Want to import the schema into a lambda function. It is not recognised.

Reproduction steps

Define a model:

  Connection: a
    .model({
      owner: a.string(),
      institutionId: a.string(),
      max_access_valid_for_days: a.integer(),
      transaction_total_days: a.integer(),
      refreshExpireTimestamp: a.integer(),
      connectionIdentifier: a.string(),
      status: a.string(),
      errorCounter: a.integer(),
      creationTimestamp: a.timestamp(),
      connectionTTL: a.integer()
    })
    .authorization((allow) => [allow.owner()]),

Try and use the schema definition in a lambda function:

import type { Schema } from '../../data/resource';

const connection = event.arguments.connection as Schema["Connection"];

Field types are not recognised:

[ykethan]

Hey @cookiejest, thank you for reaching out. Refer to the following documentation providing an example on using the data client in a lambda function.
https://docs.amplify.aws/react/build-a-backend/functions/examples/create-user-profile-record/

[cookiejest]

while this approach allows for the function to execute against the schema, it still doesn't allow for the Schema definition to be used like Schema["Connection"] for defining types. At least for me.

[ykethan]

thank you for the information. I will transfer the issue to our API repository for further assistance.

[chrisbonifacio]

Hi @cookiejest have you tried using Schema["Connection"]["type"]? There are also mutation types like createType, updateType, etc that you can use if your Lambda is intended to perform a mutation.

Can you share a little more information on the handler code and the version of the @aws-amplify/backend package you are currently using which reproduces this issue? These might help expedite reproduction of the issue.

This part of the documentation might be helpful but I will also look into potential options that might be better suited for using the types in a Lambda.
https://docs.amplify.aws/react/build-a-backend/data/query-data/#typescript-type-helpers-for-amplify-data

[chrisbonifacio]

Hi @cookiejest have you been able to try my suggestion above? Just want to be sure you're unblocked on this issue.