如何 select 来自 JSON 文件的对象并在它们未通过 API 验证时推入新文件

Question

我正在使用一个 API，它接受一些 JSON 对象（作为 post 请求发送）并根据某些标准使其他对象失败。

我正在尝试编译 "log" 个失败的对象和已成功验证的对象，因此我不必每次都手动复制和粘贴它们。（有数百个对象）。

基本上如果 API returns "false"，我想将该对象推入一个文件，如果 returns 为真，所有这些对象都会进入另一个文件文件。

我曾尝试阅读大量关于 "select, detect, reject" 等枚举器的文档/博客，但我的问题与给出的示例有很大不同。

我在下面的 ruby 文件中编写了一些伪代码，我认为我的方向是正确的，但需要一些指导才能完成任务：

restaurants = JSON.parse File.read('pretty-minified.json')

restaurants.each do |restaurant|
create_response = HTTParty.post("https://api.hailoapp.com/business/create",
{
  :body => restaurant.to_json,
  :headers => { "Content-Type" => "text", "Accept" => "application/x-www-form-urlencoded", "Authorization" => "token #{api_token}" }
  })
  data = create_response.to_hash
  alert = data["valid"]
  if alert == false
    # select restaurant json objects which return false and push into new file
    # false_rest = restaurants.detect { |r| r == false }
    File.open('false_objects.json', 'w') do |file|
      file << JSON.pretty_generate(false_rest)
    else
    # select restaurant json objects which return true and push into another file
    File.open('true_objects.json', 'w') do |file|
      file << JSON.pretty_generate()
  end 

end

API 的输出 (JSON) 示例如下：

{"id":"102427","valid":true}
{"valid":false}

JSON 文件基本上是一个巨大的散列（或对象）数组，这里是一个简短的摘录：

[
  {
    "id": "223078",
    "name": "3 South Place",
    "phone": "+442032151270",
    "email": "3sp@southplacehotel.com",
    "website": "",
    "location": {
      "latitude": 51.5190536,
      "longitude": -0.0871038,
      "address": {
        "line1": "3 South Place",
        "line2": "",
        "line3": "",
        "postcode": "EC2M 2AF",
        "city": "London",
        "country": "UK"
      }
    }
  },
  {
    "id": "210071",
    "name": "5th View Bar & Food",
    "phone": "+442077347869",
    "email": "waterstones.piccadilly@elior.com",
    "website": "http://www.5thview.com",
    "location": {
      "latitude": 51.5089594,
      "longitude": -0.1359897,
      "address": {
        "line1": "Waterstone's Piccadilly",
        "line2": "203-205 Piccadilly",
        "line3": "",
        "postcode": "W1J 9HA",
        "city": "London",
        "country": "UK"
      }
    }
  },
  {
    "id": "239971",
    "name": "65 & King",
    "phone": "+442072292233",
    "email": "hello@65king.com",
    "website": "http://www.65king.com/",
    "location": {
      "latitude": 51.5152533,
      "longitude": -0.1916538,
      "address": {
        "line1": "65 Westbourne Grove",
        "line2": "",
        "line3": "",
        "postcode": "W2 4UJ",
        "city": "London",
        "country": "UK"
      }
    }
  }
]

Answer 1

假设您要按以 elior.com 结尾的电子邮件进行过滤（此条件可能很容易更改）：

注意！上面的数据看起来像一个 javascript 变量，它不是一个有效的 ruby 对象。我假设你只是从某个地方以字符串的形式得到它。这就是为什么 json:

require 'json'
array = JSON.parse(restaurants) # data is a string: '[{....... as you received it
result = array.group_by do |e|
  # more sophisticated condition goes here 
  e['email'] =~ /elior\.com$/ ? true : false
end
File.open('false_objects.json', 'w') do |file|
  file << JSON.pretty_generate(result[false])
end
File.open('true_objects.json', 'w') do |file|
  file << JSON.pretty_generate(result[true])
end

result中有一个散列，包含两个元素：

#⇒ { 
#     true: [..valids here ..],
#     false: [..invalids here..]
# }

如何 select 来自 JSON 文件的对象并在它们未通过 API 验证时推入新文件

How to select objects from JSON file and push into new file when they fail API validation

ruby

json

httparty