了解RailsParams GraphqlMutation互動

我有兩個 rails 應用程式，一個是 graphql API，另一個也是 REST API 應用程式。讓我們呼叫 graphql 應用程式graphi和 REST 應用程式resti。

1. graphi 將資料發送到resti。

2. resti 然后與外部 API 對話，從該外部 API 獲取回應，并以良好的回應與 graphi 對話。

好的，所以 graphi 有一個名為 vendor 的突變。看起來像這樣：

mutation {
  createVendor(
    input: {
      vendorId: 2,
      quoteType: "renter",
      renterData: {
        firstName: "Tony",
        lastName: "Stark",
        email: "tony@starkindustries",
        phoneType: "mobile",
        phone: "6504881234",
        requestType: "renter",
        address1: "123 Main Street",
        addressCity: "Palo Alto",
        addressState: "CA",
        addressZip: "94301",
        dob: "1990-07-22"
      }
    }
  ) 
}

然后我通過 httparty 發送這些資料，如下所示create_vendor.rb (mutation file)：

class CreateVendor < Mutations::BaseMutation
    description 'Create a vendor'
    argument :vendor_id, ID, required: false
    argument :quote_type, String, required: true
    argument :renter_data, Types::RenterVendorType, required: false
    field :vendor, Types::VendorType, null: false


    def resolve(args)
          response = HTTParty.post(
            'http://localhost:3001/api/v2/vendor', <-- this sends data to resti
            body: JSON.parse(args.to_json),
            headers: AUTHORIZATION_HEADERS
          )
         if response.success?
           puts "Cool, I was successfull"
         else
           puts "I wasn't successful"
         end
    end
end

一旦 graphi 將資料發送到 resti，resti 服務器看起來像這樣：

Processing by Api::V2::VendorController#create as */*
  Parameters: {"vendor_id"=>"2", "quote_type"=>"renter", "renter_data"=>{"first_name"=>"Tony", "last_name"=>"Stark", "email"=>"tony@starkindustries", "phone_type"=>"mobile", "phone"=>"6504881234", "request_type"=>"renter", "address1"=>"123 Main Street", "address_city"=>"Palo Alto", "address_state"=>"CA", "address_zip"=>"94301", "dob"=>"1990-07-22"}}

現在，這不再是 graphql 的東西了，它傳遞為帶有一個嵌套引數的散列。

在resti的控制器上，我有一些事情要做permit vendor params

def create_vendor_params
    params.require(:vendor).permit(
      :vendor_id, :quote_type, renter_data: %i[first_name last_name email phone_type phone request_type address1 address_city address_state address_zip DOB]
    )
  end

問題

當我完成這個流程時，我在 resti 服務器上收到了這個問題：

ActionController::ParameterMissing (param is missing or the value is empty: vendor
Did you mean?  vendor_id
               renter_data
               action
               quote_type):

當我使用這個資料結構在 Postman 上測驗同樣的東西時：

{   "vendor": {
        "vendor_id": 2,
        "quote_type": "renter",
        "renter_data": {
            "first_name":"Tony",
            "last_name":"Stark",
            "email":"[email protected]",
            "phone_type":"mobile",
            "phone":"6504881234",
            "request_type":"renter",
            "address1":"123 Main Street",
            "address_city":"Palo Alto",
            "address_state":"CA",
            "address_zip":"94301",
            "DOB":"1990-07-22"
        }
    }
}

我在下面收到這個：

#<ActionController::Parameters {"vendor"=>#<ActionController::Parameters (#<ActionController::Parameters this  piece of code is ruining everything,) {"_id"=>2, "quote_type"=>"renter", "renter_data"=>{"first_name"=>"Tony", "last_name"=>"Stark", "email"=>"[email protected]", "phone_type"=>"mobile", "phone"=>"6504881234", "request_type"=>"renter", "address1"=>"123 Main Street", "address_city"=>"Palo Alto", "address_state"=>"CA", "address_zip"=>"94301", "DOB"=>"1990-07-22"}} permitted: false>, "controller"=>"api/v2/vendor", "action"=>"create"} permitted: false>

現在有些事情我不明白為什么會發生這種情況。當我byebug在這段代碼上：

def create_vendor_params
    params.require(:vendor).permit(
      :vendor_id, :quote_type, renter_data: %i[first_name last_name email phone_type phone request_type address1 address_city address_state address_zip DOB]
    )
    byebug
  end

我手動執行此操作：

(byebug) params.require(:vendor).permit(
:vendor_id, :quote_type, renter_data: %i[first_name last_name email phone_type phone request_type address1 address_city address_state address_zip DOB]
)

它列印出這個：

#<ActionController::Parameters {"vendor_id"=>2, "quote_type"=>"renter", "renter_data"=>#<ActionController::Parameters {"first_name"=>"Tony", "last_name"=>"Stark", "email"=>"[email protected]", "phone_type"=>"mobile", "phone"=>"6504881234", "request_type"=>"renter", "address1"=>"123 Main Street", "address_city"=>"Palo Alto", "address_state"=>"CA", "address_zip"=>"94301", "DOB"=>"1990-07-22"} permitted: true>} permitted: true>

被允許了！！

為什么會這樣？graphql 如何構造資料？我將非常感謝您的幫助！

uj5u.com熱心網友回復：

您發送到的引數resti的形狀不正確。如果您仔細觀察，引數并沒有vendor像您通過 Postman 發送它們時那樣嵌套在 a 下。

您的突變應具有以下結構突變

  createVendor(
    input: {
      vendor: {
        vendorId: 2,
        quoteType: "renter",
        renterData: {
          firstName: "Tony",
          lastName: "Stark",
          email: "tony@starkindustries",
          phoneType: "mobile",
          phone: "6504881234",
          requestType: "renter",
          address1: "123 Main Street",
          addressCity: "Palo Alto",
          addressState: "CA",
          addressZip: "94301",
          dob: "1990-07-22"
        }
      }
    }
  )

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