如何在Ruby on Rails中将嵌套的JSON发布到HTTParty

Question

我正在尝试找出使用HTTParty将嵌套的JSON对象发布到API的正确方法。

我正在使用Postman进行成功测试以测试呼叫：

POST：http://service.net/api

标题：x-api-key : apikey123

Body：

{
    "VehicleRequests": [{
        "Id": "Vehicle1",
        "Parameters": {
            "Term": 60,
            "CashDeposit": 10,
            "DepositType": "Percentage",
            "AnnualMileage": 10000
        },
        "PhysicalVehicle": {
            "ExternalVehicleId": "12345",
            "Type": "Car",
            "Status": "PreOwned",
            "OnTheRoadPrice": "30000",
            "Mileage": "12345",
            "Registration": {
                "RegistrationNumber": "REGN0",
                "DateRegisteredWithDvla": "01/01/2018"
            }
        }
    }]
}

此返回：

{
  "Vehicles": [
    {
      "Id": "Vehicle1",
      "HasError": false,
      "Error": null,
      "FinanceQuotations": [
        {
          "HasError": false,
          "Error": null,
          "Finance": {
            "Key": "HP",
            "Notifications": [],
            "Quote": {
             .....
            }
          }
        }
    }
  ]
}

但是我正在努力从Rails应用程序复制呼叫。我设置了一个要在create上调用的类

class Monthlyprice
   def initialize()

        @response = HTTParty.post('http://service.net/api',  
        :body =>{
            :VehicleRequests=> [{
                :Id => "Vehicle1",
                :Parameters => {
                    :Term => 60,
                    :CashDeposit => 10,
                    :DepositType => "Percentage",
                    :AnnualMileage => 10000
                },
                :PhysicalVehicle => {
                    :ExternalVehicleId => "12345",
                    :Type => "Car",
                    :Status => "PreOwned",
                    :OnTheRoadPrice => "30000",
                    :Mileage => "12345",
                    :Registration => {
                        :RegistrationNumber => "REGN0",
                        :DateRegisteredWithDvla => "01/01/2018"
                    }
                }
            }].to_json
        },
        :headers => {"x-api-key" => "apikey123"})

        puts(@response)
    end
end

但是这会从API返回以下错误消息：

{"Error"=>{"UserMessage"=>"Request is invalid.", "TechnicalMessage"=>"Request Validation failed. Request had 2 error(s). 1: request.VehicleRequests[0].Id - The Id field is required.\r\n2: request.VehicleRequests[0].Parameters - The Parameters field is required.", "Code"=>"80000"}}

这是我从邮递员的api中收到的相同错误，如果我删除Id和Parameters对象，这表明我的VehicleRequests对象的内容格式不正确？任何建议都很好！

Answer 1

您能否通过如下方式更改语法：-

:body => {:Id => "Vehicle1" 
         }.to_json

这意味着您必须在主体结尾处使用.to_json，我认为这只是语法错误。

语法：-

response = HTTParty.post("your request URL",
                  headers: {
                    "Content-Type" => "application/json"
                  },
                  body: {
                  ......
                   your body content
                  .....

                   }.to_json
                 )

我刚刚在您的代码中进行了编辑，请尝试以下代码：-

@response = HTTParty.post('http://service.net/api',
        :headers => {"x-api-key" => "apikey123"},  
        :body =>{
            :VehicleRequests=> [{
                :Id => "Vehicle1",
                :Parameters => {
                    :Term => 60,
                    :CashDeposit => 10,
                    :DepositType => "Percentage",
                    :AnnualMileage => 10000
                },
                :PhysicalVehicle => {
                    :ExternalVehicleId => "12345",
                    :Type => "Car",
                    :Status => "PreOwned",
                    :OnTheRoadPrice => "30000",
                    :Mileage => "12345",
                    :Registration => {
                        :RegistrationNumber => "REGN0",
                        :DateRegisteredWithDvla => "01/01/2018"
                    }
                }
            }]
        }.to_json
        )

希望这对您有帮助：）