Django rest framwork-CMDB API实战

一、序列化

serializers.py

from rest_framework import serializers
from web_manage import models
class AssetSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.Server
        fields = '__all__'
        depth = 3

 

二、展示层

rest_views.py

from web_api.serializers import AssetSerializer
from web_manage import models
from rest_framework.response import Response
from rest_framework.decorators import api_view
@api_view(['GET','POST'])
def AssetViewSet(request):
    if request.method == 'GET':
        salt_name = request.GET.get('salt_name')
        queryset = models.Server.objects.all() if salt_name == 'None' else models.Server.objects.filter(salt_name=salt_name)
        serializer_class = AssetSerializer(queryset,many=True)  #many=True返回具体内容
        return Response(serializer_class.data)

三、注册URL　

四、测试

原生json样式只需要加上 format参数即可

四-2、因NIC,MEM,DISK这3个表是反向关联Server表，所以默认是没有反查询，需手动定义 

from rest_framework import serializers
from web_manage import models
class MemorySerializer(serializers.ModelSerializer):
    class Meta:
        model = models.Memory
        fields = '__all__'
class NicSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.NIC
        fields = '__all__'
class DiskSerializer(serializers.ModelSerializer):
    class Meta:
        model = models.Disk
        fields = '__all__'
class AssetSerializer(serializers.ModelSerializer):
    memory_set = MemorySerializer(many=True)
    nic_set = NicSerializer(many=True)
    disk_set = DiskSerializer(many=True)
    class Meta:
        model = models.Server
        fields = '__all__'
        depth = 3

五、客户端验证tocken后，才能获取API信息　　

客户端：

#!/usr/bin/python
#encoding:utf-8
import hashlib,time
import urllib,urllib2,json
def get_token(username,token_id):
    timestamp = int(time.time())
    md5_format_str = "%s
%s
%s" %(username,timestamp,token_id)
    obj = hashlib.md5()
    obj.update(md5_format_str)
    return obj.hexdigest()[10:17], timestamp
def __attach_token(url_str):
    '''把用户名和密码加密后拼接到POST的URL中'''
    user = 'reporter'
    token_id = '349095cc-1330-11e5-b06a-a45ef3bec39f'
    md5_token,timestamp = get_token(user,token_id)
    url_arg_str = "user=%s×tamp=%s&token=%s" %(user,timestamp,md5_token)
    if "?" in url_str:
        new_url = url_str + "&" + url_arg_str
    else:
        new_url = url_str + "?" + url_arg_str
    return  new_url
if __name__ == '__main__':
    url = 'http://127.0.0.1:8000/api/get_assets_count/'
    url = __attach_token(url)
    data = {"idc":"aws_cn"}
    data_encode = urllib.urlencode(data)
    req = urllib2.Request(url=url,data=data_encode)
    res_data = urllib2.urlopen(req,timeout=30)
    callback = res_data.read()
    callback = json.loads(callback)
    print callback

　　

服务端：

@api_auth
@api_view(['GET','POST'])
def AssetViewSet_count(request):
    if request.method == 'POST':
        idc = request.POST.get('idc')
        idc_info = {'aws_global':[8,10],'aws_cn':[5],'aliyun_global':[11],'aliyun_cn':[6]}
        idc_id = idc_info.get(idc)
        if idc_id:
            queryset = models.Asset.objects.filter(device_status_id=1,idc__id__in=idc_id).count()
        else:
            queryset = 'Error'
        return Response(queryset)
    else:
        return Response('Just POST')

验证，执行客户端脚本：