Allowing an IAM user access (Uploading and Deleting) to one of our specific buckets.

Question

Hello everyone,
I am very new in configuring and setting up permissions to our AWS users. I am trying to give permission to one of our AIM account users to delete and upload objects to one of existed buckets. That would be very nice of you if you can help me and write me the steps to follow. I have already done the following:
I have already created a group and added the desired username.
I have created a policy and attached it the group. 
I added some JSON commands too, but I do not know why it does not work.

Please help me assign the rights to the user that he can upload and delete an object.
Many thanks in advance.

Sercast · Accepted Answer

Hi Huma, I hope you are doing great. 
It is not clear for me if the user you are trying to configure will need programmatic access (using the terminal commands) or it needs access through the AWS Management Console.

If your user needs programmatic access, The policy attached to your group should be like the following. 
```JSON
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": ["s3:ListBucket"],
      "Resource": ["arn:aws:s3:::NAME-OF-YOUR-BUCKET"]
    },
    {
      "Effect": "Allow",
      "Action": [
        "s3:PutObject",
        "s3:GetObject",
        "s3:DeleteObject"
      ],
      "Resource": ["arn:aws:s3:::NAME-OF-YOUR-BUCKET/*"]
    }
  ]
}  
```

If your user needs access through the AWS Management Console, the policy attached to your group should be like the following.
```JSON
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "s3:GetBucketLocation",
        "s3:ListAllMyBuckets"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": ["s3:ListBucket"],
      "Resource": ["arn:aws:s3:::NAME-OF-YOUR-BUCKET"]
    },
    {
      "Effect": "Allow",
      "Action": [
        "s3:PutObject",
        "s3:GetObject",
        "s3:DeleteObject"
      ],
      "Resource": ["arn:aws:s3:::NAME-OF-YOUR-BUCKET/*"]
    }
  ]
}
```

I hope the above helps for your user case.

Have a great week ahead!

Dylan Zenner · Answer

Without the specific JSON I won't be able to tell what you've done wrong but if you follow these steps you'll be able to give the user the required permissions to the bucket: https://docs.aws.amazon.com/AmazonS3/latest/userguide/example-policies-s3.html#iam-policy-ex0:~:text=within%20your%20organization-,Allowing%20an%20IAM%20user%20access%20to%20one%20of%20your%20buckets,-In%20this%20example

Allowing an IAM user access (Uploading and Deleting) to one of our specific buckets.

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