f is undefined in fromCognitoIdentityPool

[pash90]

Describe the bug
While using the fromCognitoIdentityPool function from @aws-sdk/credential-provider-cognito-identity, there is a runtime error that says:

TypeError: f is undefined

I understand that this is a library in development but using the v2 aws-sdk is a no-go since the only thing I need is creating credentials for an anonymous user.

SDK version number
v3

Is the issue in the browser/Node.js?
Browser/Node.js

Details of the browser/Node.js version
v12.13.1

To Reproduce (observed behavior)

import { config } from "aws-sdk/global"
import { fromCognitoIdentityPool } from "@aws-sdk/credential-provider-cognito-identity"

export class Authenticator {
  constructor(cognitoIdentityPoolId) {
    this.cognitoIdentityPoolId = cognitoIdentityPoolId;
    config.region = this.cognitoIdentityPoolId.split(':')[0];
  }

  /**
   * @method createAnonymousIdentity
   * Creates a new user for an application.
   */
  async createAnonymousIdentity() {
    const provideCredentials = fromCognitoIdentityPool({
      identityPoolId: this.cognitoIdentityPoolId
    })

    const credentials = await provideCredentials()
    config.credentials = credentials
    config.credentials.getPromise()
    return config.credentials
  }
};

Expected behavior
Ideally, the credentials should be returned at the end.

Screenshots

[srchase]

fromCognitoIdentityPool needs to be supplied a CognitoIdentityClient as client in addition to the identityPoolId.

Also, can you provide which the full package versions?

[pash90]

@srchase the version I'm using is this one : @aws-sdk/credential-provider-cognito-identity": "0.1.0-preview.2

While you are responding this, could you also guide me as to how to create the CognitoIdentityClient ?

[AllanZhengYP]

@pash90
Sorry for the delayed reply. You can do:

import {CognitoIdentityClient} from "@aws-sdk/client-cognito-identity";
import { fromCognitoIdentityPool } from "@aws-sdk/credential-provider-cognito-identity"
const provideCredentials = fromCognitoIdentityPool({
    client: new CognitoIdentityClient({})//Or specify the region and other config you need
    identityPoolId: this.cognitoIdentityPoolId
})

[pash90]

awesome @AllanFly120 I will try it out asap

[lock]

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