如何使用Ruby on Rails从Facebook营销API获得潜在覆盖面5

问题描述：

我想从使用Ruby on Rails 5的Facebook营销API中获取potential reach。我找到了Ruby SDK here，但我看不到示例代码和我需要获取我想要的数据的功能。我也发现了这个post这是基于Python的，并试图将语言转化为红宝石这使我这个代码：如何使用Ruby on Rails从Facebook营销API获得潜在覆盖面5

require "facebook_ads" 

class FacebookApi 
    attr_reader :ad_instance 

    def initialize(opts={}) 
    @ad_instance = FacebookAds::AdAccount.get("act_#{opts[:account_id]}") 
    raise 'Account ID Key must be provided' unless opts[:account_id] 
    end 

    def get_target() 
    targeting_spec = { 
     'geo_locations': { 
     'countries': ['US'], 
     }, 
     'age_min': 20, 
     'age_max': 40, 
    } 

    params = { 
     'targeting_spec': targeting_spec, 
    } 

    @ad_instance.get_reach_estimate(params: params) 
    end 
end

然而，功能get_reach_estimate没有找到。

我也试着模仿样本卷曲的命令，而不是与下面的测试脚本上来：

require 'net/http' 
require 'uri' 
require "erb" 
include ERB::Util 

class FacebookApi 
    def get_target() 
    account_id = <ACCOUNT_ID> 
    access_token = <USER_ACCESS_TOKEN_WITH_ADS_MANAGEMENT_PRIVILEGE> 
    uri = URI.parse("https://graph.facebook.com/v2.10/act_#{account_id}/reachestimate") 
    request = Net::HTTP::Post.new(uri) 
    request.set_form_data(
     "access_token" => access_token, 
     "targeting_spec" => url_encode("{\"geo_locations\": {\"countries\":[\"US\"]}, \"age_min\": 20, \"age_max\": 40}") 
    ) 

    req_options = { 
     use_ssl: uri.scheme == "https", 
    } 

    response = Net::HTTP.start(uri.hostname, uri.port, req_options) do |http| 
     http.request(request) 
    end 

    puts response.code 
    puts response.body 
    end 
end

请留意，我用我的代码中的实际帐户ID和访问令牌。只是把它藏在这里。所以，现在上面的代码返回以下错误：

{ 
     "error": { 
     "message": "Unsupported post request. Object with ID <ACCOUNT_ID> does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api", 
     "type": "GraphMethodException", 
     "code": 100, 
     "fbtrace_id": "ESJks9/KxJC" 
     } 
    }

我敢肯定，我加入了ad_management访问我的访问令牌。我也尝试删除URI中的前缀act_，但结果相同。我现在正处于死路一条，所以我想问一些关于如何做到这一点的建议。非常感谢你。

答

原来，这是因为发布的请求。我应该使用GET请求。以下是我的工作代码，其中兴趣点参数适用于定位规范。

def get_target(interest_id, interest_name) 
    account_id = @account_id 
    access_token = @access_token 
    url = "https://graph.facebook.com/v2.10/act_#{account_id}/reachestimate" 

    params = { 
     "access_token" => access_token, 
     "targeting_spec" => "{" + 
      "\"geo_locations\": {\"country_groups\":[\"Worldwide\"]}," + 
      " \"age_min\": 20, \"age_max\": 40," + 
      " \"interests\": [" + 
      "{\"id\":#{interest_id}, \"name\":\"#{interest_name}\"}" + 
      "]" + 
     "}" 
    } 

    response = get_response(url, params) 

    response 
end 

def get_response(url, params) 
    uri = URI.parse(url) 
    uri.query = URI.encode_www_form(params) 

    http = Net::HTTP.new(uri.host, uri.port) 
    http.use_ssl = true 
    request = Net::HTTP::Get.new(uri) 
    response = http.request(request) 

    response.body 
end

如何使用Ruby on Rails从Facebook营销API获得潜在覆盖面5

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