Emit Tuples From Erlang Views In CouchDB

Question

CouchDB, version 0.10.0, using native erlang views.

I have a simple document of the form:

{
   \"_id\": \"user-1\",
   \"_rev\": \"1-9ccf63b66b62d15d         


        

Answer 1

The JSON object {"foo":"bar","baz":1} is {[{<<"foo">>,<<"bar">>},{<<"baz">>,1}]}

In Erlang lingua it is a proplist wrapped in a tuple.

It's not pretty, but very efficient :)

To get a feel for it you can play with the JSON lib that ships with CouchDB:

1. Start CouchDB with the -i (interactive) flag
2. On the resulting erlang shell, type: couch_util:json_decode(<<"{\"foo\":\"bar\"}">>).
3. Profit

// in later versions of CouchDB, this is ejson:decode()