How to give full access to a S3 user for a single bucket

Question

I have a user who is unable to upload files or do anything. How to grant permission to that user?

Answer 1

Add "s3: ListBucket" permission to the bucket

{
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "S3:*",
      "Resource": "arn:aws:s3:::bar/*",
      "Condition": {}
    },
    {
      "Effect": "Allow",
      "Action": [
        "s3:ListBucket"
      ],
      "Resource": "arn:aws:s3:::bar",
      "Condition": {}
    }
  ]
}