python - 在 Python 中缓存 Mashape API 调用

Question

如何缓存 Mashape API 调用。我得到了下面的代码，但它似乎没有进行缓存。 Mashape 使用 unirest 来获取 API 响应。

def fetchMashape(url, headers):
    cached = unirest.get(url, headers=headers) #cache.get(url)
    content =""
    if not cached:
        response = unirest.get(url,
                    headers=headers)
    else:
        response = cached
    dictionary = json.loads(response.raw_body)

    return dictionary

我能够使用一个 URL 来完成此操作，在该 URL 中我可以使用请求 http 库 http://docs.python-requests.org/en/latest/index.html 附加 API key 例如

from django.core.cache import cache
from urllib2 import Request, urlopen, build_opener
from urllib import urlencode
import json, ast
import unirest
import requests
import xmltodict

test = fetchJson("http//www.myapi.com/v1/MY_API_KEY/query/json=blahblah")

#fetchJson with caching
def fetchJson(url):
    cached = cache.get(url)
    content = ""
    if not cached:
        r = requests.get(url)
        if(r.ok):
            cache.set(url, r.text)
            content = r.text
        else:
            content = None  
    else:
        # Return the cached content
        content = cached
    if content is not None:
        return json.loads(content)
    else:
        return None

我使用的是 django 1.6.6。缓存存储在数据库中。我的settings.py 文件。数据库的名称是dev_cache。

  CACHES = {
        'default': {
            'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
            'LOCATION': 'dev_cache',
            'TIMEOUT': 60*60*24*7*4,
            'VERSION': 1,
            'OPTIONS': {
                'MAX_ENTRIES': 1022000
            }


 }
}

Answer 1

这是我的工作解决方案(请随意改进此代码)

使用示例

url = "https://something_api.p.mashape.com/q=whateverquery",
headers={"X-Mashape-Key": "ABCDEFG12345"}
test = fetchMashape(url, headers)

def fetchMashape(url, headers):
    cached = cache.get(url)
    content = ""
    if not cached:
        response = unirest.get(url,
              headers=headers)
        print "not cached"
        if response is not None:
            cache.set(url, response.raw_body)
            content = response.raw_body
        else:
            content = None
    else:
        content = cached
        print "already cached"

    dictionary = json.loads(content)

    return dictionary