gistfile2.txt

curl -X PUT localhost:5984/test &&
curl -X PUT localhost:5984/test/_design/demo -d @view.json &&
curl -X PUT localhost:5984/test/1 -d '{"foo": "foo"}' &&
curl localhost:5984/test/_design/demo/_view/two

view.json

{
  "language": "javascript",
    "views": {
      "one": {"map": "function(doc){
        doc.foo = \"bar\";
        emit(doc._id, null)
      }"},
      "two": {"map": "function(doc){
        emit(doc._id, doc)
      }"}
    }
}