[Bitcoin-development] Service bits for pruned nodes

Brenton Camac bpcamac at gmail.com
Tue Apr 30 20:06:12 UTC 2013

Sounds like this part of Bitcoin (block sharing) would definitely benefit from having a REST (HTTP) API.

REST-based web APIs are a common feature of most online services these days.  Makes writing other client services so much easier.  Plus you get the benefit of the HTTP ecosystem for free (HTTP caches, etc).

- Brenton Camac 

On Apr 30, 2013, at 1:04 PM, Jeff Garzik <jgarzik at exmulti.com> wrote:

> On Tue, Apr 30, 2013 at 12:14 PM, Rebroad (sourceforge)
> <rebroad+sourceforge.net at gmail.com> wrote:
>> As part of a roadmap for block downloading, I think this may be a good time
>> to look into providing an HTTP/HTTPS protocol for block downloading - this
>> would also allow web proxies to cache blocks and thus make it more
>> accessible, as well as cater for resumeable downloads.
> Speaking generally, I've always been a supporter of finding new and
> creative ways to store and transmit blocks.  The more diversity, the
> less likely bitcoin can be shut down worldwide.
> HTTP is fine, but you run into many issues with large files.  You
> would need a very well defined HTTP-retrievable layout, with proper
> HTTP headers along the entire path, if you want web caches to function
> properly.  You need HTTP byte range support, HTTP 1.1 keep-alives, and
> other features for resuming large, interrupted downloads.
> The format currently used by bitcoind would be just fine --
> blocks/blkNNNN.dat for raw data, size-limited well below 1GB.  Just
> need to add a small metadata download, and serve the raw block files.
> -- 
> Jeff Garzik
> exMULTI, Inc.
> jgarzik at exmulti.com
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