我是Ruby on Rails框架的新手。我正在使用课程上的Ruby on Rails教程进行练习,我必须使用HTTParty从Coursera API获取有关课程的信息,并在屏幕上显示此信息。但不幸的是我遇到了问题。
以下是我的代码,它从Coursera API获取信息并将其返回
class Coursera
include HTTParty
base_uri 'https://api.coursera.org/api/catalog.v1/courses'
default_params fields: "smallIcon,shortDescription", q: "search"
format :json
def self.for term
response=get("", query: { query: term})["elements"]
if(response==nil)
puts "Got Negative response!"
else
puts "Got Positive response!"
return response
end
end
end
有人可以指出为什么“得到”返回零。我确定我犯了一些大错,但有人可以指出吗?提前致谢
答案 0 :(得分:0)
怪异。看起来,coursera并不总是返回相同的响应。
[1,2,3]
有时返回:
require 'httparty'
class Coursera
include HTTParty
base_uri 'https://api.coursera.org/api/catalog.v1/courses'
default_params fields: "smallIcon,shortDescription", q: "search"
format :json
def self.for term
response = get("", query: {query: term})
puts response.request.last_uri.to_s
elements = response["elements"]
if elements
puts "Got Positive response!"
response
else
puts "Got Negative response!"
end
end
end
p Coursera.for 'python'
有时候:
https://api.coursera.org/api/catalog.v1/courses?fields=smallIcon%2CshortDescription&q=search&query=python
Got Negative response!
nil