They want to develp REST API for DEX .
alt adopted some special archtecture in this project for high throughoutput, simply speaking.At server side one new layer is added to the api node, this layer subscribe transaction data from lower layer, preprocess it and generate a new database which suit for clients' query, and provide these data to client through meteor's ddp protocol.
alt:
有了rest api以后，什么语言都很容易接入了
有了标准的数据库之后，也是什么语言都能接入了，管你是python还是js
我现在给btsbots用的这一套做交易所应该就差不多够用了，还要把数据库索引优化一下
底层的api不影响我的效率了，我只从node api订阅每个交易数据，其它所有数据我都是实时从交易数据自己算出来的
Source:https://bitsharestalk.org/index.php/topic,23609.msg300960.html#msg300960