Hi there Long time lurker, first time poster. I've been working on a module for the last couple of weeks as a bit of a training exercise. I´ve been digging in to node for the last 6 months and I´m trying to make all my modules streaming. The latest exercise is a reverse image proxy for mapping tiles (Openlayers) with caching that actually would have some application in frontend JS that I´ve written.
I want to store ancillary data externally and then attach it to the stream when piping (akin to how Request and Filed attach relevant header info) and I obviously want to do this asynchronously. My initial thought was to override the pipe method on the stream to load the metadata from file and then call the real pipe once the ancillary data has been retrieved. My concern is whether I would run the risk of losing the streamed image data while waiting for the metadata to load. Would it be advisable to keep a buffer of incoming stream data while waiting for the metadata and then emit from the buffer or would it be as simple as pausing and resuming the incoming pipe? At the moment, I´m storing JSON in flat files but I´ve just been refactoring so that I could plug it in to redis or memcached or whatnot. As soon as I get to my desk, I will push my current code up to github in case it´s necessary but any advice would definitely be welcomed. Alternatively, if I´m taking the wrong route in solving this problem, any criticism and redirection would be well received. Thanks, connrs. -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
