dynamodb.tf

resource "aws_dynamodb_table" "dynamodbtable" {
  name           = "counter"
  billing_mode   = "PROVISIONED"
  read_capacity  = 1
  write_capacity = 1
  hash_key       = "id"
  attribute {
    name = "id"
    type = "N"
  }

#   ttl {
#     attribute_name = "TimeToExist"
#     enabled        = false
#   }
# TTL does not update quickly at AWS side, and you get a validation 
# error if you create the table with TTL specified like above, and 
# need to run another TF apply/plan etc.

  global_secondary_index {
    name               = "idIndex"
    hash_key           = "id"
    write_capacity     = 1
    read_capacity      = 1
    projection_type    = "KEYS_ONLY"
  }

}

resource "aws_dynamodb_table_item" "tableitem" {
  table_name = aws_dynamodb_table.dynamodbtable.name
  hash_key   = aws_dynamodb_table.dynamodbtable.hash_key

  item = <<ITEM
{
  "id": {"N": "0"}
}
ITEM
}

  # "visitcount": {"N": "0"}

  # Had to remove the visitcount field 
  # it was used to create the table initially, but, 
  # when run subsequently it would overwrite the counter value 
  # even though it would not destroy the table and recreate.
  # Removed this as a temp workaround for now