![]() Use this role policy for the IAM role created by Amazon Cognito for unauthenticated users. For more information about creating an IAM role, see Creating a Role to Delegate Permissions to an AWS Service in the IAM User Guide. Add the following policy to grant read and write permissions to an Amazon S3 bucket. Making APIs that requires photos, so uploading photos to the Amazon S3 bucket and accessing it with the public url is one way and then we can save that. In the IAM console, find the IAM role created by Amazon Cognito for unauthenticated users. For more information about Amazon Cognito Federated Identities, see Amazon Cognito Identity Pools (Federated Identites) in the Amazon Cognito Developer Guide. After you’ve completed this tutorial, you can try the Using an Amazon S3 trigger to create thumbnail images tutorial to perform an image processing task. ![]() You need to include the identity pool ID in the code to obtain credentials for the browser script. For example, you can use a Lambda function to create a thumbnail whenever an image file is uploaded to your Amazon S3 bucket, or to convert uploaded documents into different formats. In the Amazon Cognito console, create an Amazon Cognito identity pool using Federated Identities with access enabled for unauthenticated users in the same Region as the Amazon S3 bucket. For more information about setting bucket permissions, see Setting permissions for website access. Make sure you have both Read and Write permissions on Objects. ![]() For more information about creating a bucket in the console, see Creating a Bucket in the Amazon Simple Storage Service User Guide. In the Amazon S3 console, create an Amazon S3 bucket that you will use to store the photos in the album.
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