Thank you for your input. parameters with underscore: I'd imagined to 've 'where' parameters in query fields like ?columnName=columnValue. Hence started with u

Thank you for your input. parameters with underscore: I'd imagined to 've 'where' parameters in query fields like ?columnName=columnValue. Hence started with underscore - however I dropped where clause as I was soon sure that I was only covering small group within where clause and operators. abbreviation of page to _p - I think I picked up that from hackernews where paging query parameter is p :). fields: second one seems easy to use - I think I borrowed it from google youtube apis. They have concept of id,snippet etc which is higher level of abstracting ids, primary-info (respectively) in response sort: may be I extended the concept of fields to sort. Since sort can 've only two directions.