Amazon Cognito Ec2 connection

Question

Hi Guys,
I deployed my java app on EC2 and here I am doing call to Amazon Cognito in order to push user data. So I am getting below error,
`Profile file contained no credentials for profile 'default': ProfileFile(profiles=[])". When you are trying the same on your local machine its working fine`
My understanding was If I gave IAM role(CognitoSuperUser) which has permission for Cognito to Ec2, I don't have to put credentials in EC2 profile file. Am I wrong? 
will not EC2 be able to allow calling to Cognito without any configuration? Like I do call to S3 from Ec2 by allowing permission in the IAM role that assigned Ec2.
This is the way I create client to call. is there any other way to make call instead of **ProfileCredentialsProvider**

```
this.cognitoClient = CognitoIdentityProviderClient.builder()
                .region(Region.US_EAST_2)
                .credentialsProvider(ProfileCredentialsProvider.create())
                .build();
```

Thanks

Answer

Hi,

Could you these options?
* do not provide any credentials provider in build method chain or
* use https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/auth/AWSCredentialsProvider.html or
* https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/auth/DefaultAWSCredentialsProviderChain.html

Hope it helps ;)

Amazon Cognito Ec2 connection

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