Day13 Lab 2 - Object storage API层

接下来我们就要进入Lab2的环节了，我们不会只像Lab只实作了简单的单机储存系统，我们会有API层、data层、心跳机制等等，下图给出了我们的大致的架构

今天先讲API层的细节，API层主要是expose储存的service给外部，我们的API定义在这

https://github.com/kaichiachen/python-simple-object-storage/blob/master/distributed_obj_system/backend/api/run.py

如下所示

• version list

@app.route("/versions/<obj_name>", methods=['GET'])

• object size

@app.route("/objects/size/<obj_name>", methods=['GET'])

• object location

@app.route("/objects/locate/<obj_name>", methods=['GET'])

• upload object

@app.route("/objects/<obj_name>", methods=['POST'])

• download object

@app.route("/objects/<obj_name>", methods=['GET'])

特别说一下上图upload object的流程，upload我们不会透过Restful API传递object资料，而是透过Kafka这种生产者消费者middle ware给data server去消费
这篇大概说了一下API层有什麽API，接下来说Data server层的沟通机制