What is the best way to integrate AWS-Amplify Auth into componentized functions?

Question

What is the best way to integrate AWS-Amplify Auth into componentized functions?

Issue: I am encountering an error when attempting to utilize Auth from AWS-Amplify in separate functions within a componentized structure, specifically in a helper.ts file.

Usage:

employerID: Auth.user.attributes["custom:id"],

Error Message:

Property 'user' is private and can only be accessed within the 'AuthClass' class. ts(2341)

As a solution, I pass Auth as a prop to the function in the main file that renders the page. For example:

await listEmployerImagesDetails(Auth);

, but Auth is currently declared as any within the function.

Complete Code Example: helpers.ts

export const listEmployerImagesDetails = async(Auth: any, nextToken: string) => {
    try {
        const images = await API.graphql({
             employerID: Auth.user.attributes["custom:id"],
             ...
            },
          });

          return {...}

    } catch (error){
        ...
    }
};

Inquiries:

How can I effectively use Auth in separated functions? (preferred method)
If direct usage of Auth isn't feasible, how can I incorporate AuthClass or a similar approach to correctly assign Auth to the appropriate prop location while adhering to TypeScript's type safety?

typescript aws-amplify

Answer 1

Answer №1

When utilizing the NextJS API, I make use of the following code snippet:

import { Amplify, withSSRContext } from 'aws-amplify'

...

//If is used with NextJS API 
//the Auth can be obtained from NextApiRequest,
//otherwise you can skip the line below
const { Auth } = withSSRContext({ req })

user = await Auth.currentAuthenticatedUser()
console.log('user sub attribute: ', user["attributes"]["sub"])

If implemented directly on the NextJS page, the code will look like this:

import { withAuthenticator } from '@aws-amplify/ui-react'
import { Amplify, Auth } from 'aws-amplify'
import aws_exports from 'aws-exports'

Amplify.configure(aws_exports)
...
const Ssr: NextPage = () => {
  const [refreshToken, setRefreshToken] = useState('')

  var user = await Auth.currentAuthenticatedUser()

  return (
    <div >
      ...
    </div>
  )
}

export default withAuthenticator(Ssr, { hideSignUp: true })

Answer 2

When utilizing the NextJS API, I make use of the following code snippet:

import { Amplify, withSSRContext } from 'aws-amplify'

...

//If is used with NextJS API 
//the Auth can be obtained from NextApiRequest,
//otherwise you can skip the line below
const { Auth } = withSSRContext({ req })

user = await Auth.currentAuthenticatedUser()
console.log('user sub attribute: ', user["attributes"]["sub"])

If implemented directly on the NextJS page, the code will look like this:

import { withAuthenticator } from '@aws-amplify/ui-react'
import { Amplify, Auth } from 'aws-amplify'
import aws_exports from 'aws-exports'

Amplify.configure(aws_exports)
...
const Ssr: NextPage = () => {
  const [refreshToken, setRefreshToken] = useState('')

  var user = await Auth.currentAuthenticatedUser()

  return (
    <div >
      ...
    </div>
  )
}

export default withAuthenticator(Ssr, { hideSignUp: true })

What is the best way to integrate AWS-Amplify Auth into componentized functions?

Answer №1

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