Batch endpoint payload optimizations

[leplatrem]

Current approach for BATCH operations is to provide a series of requests and return a list of responses.

See https://github.com/mozilla-services/readinglist/wiki/API-Design-proposal#post-batch

This can result in a pretty massive response payload, especially while importing hundreds (thousands?) of articles.

The puporse of this issue is to brainstorm around a sound formalism that would allow to reduce response payloads.

For example, we can imagine adding a request header Light-Response or a querystring parameter to reduce the response JSON layout/content.
https://github.com/mozilla-services/readinglist/wiki/API-Design-proposal#massive-operations

[leplatrem]

Do you mind if I reopen this?
It was targetting response payload optimization, which was not covered by #2...

[Natim]

Oh yes my bad.