Not checking or refreshing your credentials increases the likelihood of application failures caused by ExpiredToken errors. Important: If your application uses the AWS SDK ProfileCredentialsProvider class to provide temporary AWS credentials, then you're responsible for checking for and refreshing credentials before they expire. AWS uses this class to sign API requests with AWS credentials using temporary security credentials from Amazon EC2 instance metadata. If instance profile credentials are available, then the default client constructor creates an instance of the AWS SDK InstanceProfileCredentialsProvider class. ![]() For more information, see Using an IAM role to grant permissions to applications running on Amazon EC2 instances. Also, whenever I try to post, it says that 'this request to self-post is invalid.' Any help Using a throwaway because I can't post on my main due to the reasons I'll be explaining. Attaching an instance profile to your instance adds instance profile credentials to the default credentials provider chain.
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