Ndtyjky

Im trying to utilize AWS JS SDK in my Angular application.

Consider the following code:

import * as AWS from 'aws-sdk';

import {Component, OnInit} from '@angular/core';



declare let AWSCognito: any;



@Component({

  selector: 'app-root',

  templateUrl: './app.component.html',

  styleUrls: ['./app.component.css']

})



export class AppComponent implements OnInit {



  private _dynamodb;



  constructor() {

    AWS.config.region = 'eu-west-2'; // Region

    AWS.config.credentials = new AWS.CognitoIdentityCredentials({

      IdentityPoolId: 'eu-west-2:xxyyzz'

    });

    this._dynamodb = new AWS.DynamoDB.DocumentClient();

  }



  ngOnInit() {

    this._dynamodb.get({TableName: 'somename', Key: {projectId: 123321}}, (err, data) => {

    })

  }

}

When the above code is executed the following error appears:

ERROR TypeError: Cannot convert undefined or null to object

I can see that it's this._dynamodb.get that makes the system crash.

Any idea what I'm doing wrong?

EDIT:

Full stack trace:

ERROR TypeError: Cannot convert undefined or null to object

    at hasOwnProperty (<anonymous>)

    at isEndpointDiscoveryApplicable (discover_endpoint.js:279)

    at Request.discoverEndpoint (discover_endpoint.js:322)

    at Request.callListeners (sequential_executor.js:102)

    at Request.emit (sequential_executor.js:78)

    at Request.emit (request.js:683)

    at Request.transition (request.js:22)

    at AcceptorStateMachine.runTo (state_machine.js:14)

    at state_machine.js:26

    at Request.<anonymous> (request.js:38)