nickva commented on a change in pull request #1195: Add support for bulk get
with Accept:"multipart/mixed" or "multipart/related"
URL: https://github.com/apache/couchdb/pull/1195#discussion_r232722844
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File path: src/chttpd/src/chttpd_db.erl
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@@ -481,18 +482,62 @@ db_req(#httpd{method='POST', path_parts=[_,
<<"_bulk_get">>]}=Req, Db) ->
} = bulk_get_parse_doc_query(Req),
Options = [{user_ctx, Req#httpd.user_ctx} | Options0],
- {ok, Resp} = start_json_response(Req, 200),
- send_chunk(Resp, <<"{\"results\": [">>),
-
- lists:foldl(fun(Doc, Sep) ->
- {DocId, Results, Options1} = bulk_get_open_doc_revs(Db, Doc,
- Options),
- bulk_get_send_docs_json(Resp, DocId, Results, Options1, Sep),
- <<",">>
- end, <<"">>, Docs),
-
- send_chunk(Resp, <<"]}">>),
- end_json_response(Resp)
+ % Decide whether to use multipart response or application/json
+ AcceptMixedMp = MochiReq:accepts_content_type("multipart/mixed"),
+ AcceptRelatedMp =
MochiReq:accepts_content_type("multipart/related"),
+ AcceptMp = AcceptMixedMp orelse AcceptRelatedMp,
Review comment:
I think the difference is that with existing open_revs logic it's ok if it
is inconsistent because it is already released. But I am worried about changing
the default behavior of what _bulk_gets if there is no `Accept` header or
`Accept` header contains `*/*` (that is accept anything).
In those cases I think `_bulk_get` will start returning mp content instead
of json as before. Try for example sending a request before the PR to
`_bulk_get` without an Accept header and after the PR. For me, it looked like
the default changed and that might be unexpected (even if technically correct
from the HTTP request / response point).
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