我正在使用React和AWS Amplify实现一个网页。
我在schema.graphql文件中有以下定义：

type Calendar @model {
  id: ID!
  name: String
  description: String
  url: String!
  intervals: [Interval] @connection(keyName: "byCalendar", fields: ["id"])
}

我想从它的URL字符串获取日历。不幸的是，下面的代码抛出一个错误：

import { API, graphqlOperation } from "aws-amplify";
import * as queries from "../../graphql/queries";

await API.graphql(graphqlOperation(queries.getCalendar, { url: "some-url"}));

Variable "$id" of required type "ID!" was not provided.
根据错误，必须提供ID。但是，我希望能够从URL中获取对象。
我该怎么做？
我使用的是由amplify的cli自动生成的查询。

/* eslint-disable */
// this is an auto generated file. This will be overwritten

export const getCalendar = /* GraphQL */ `
  query GetCalendar($id: ID!) {
    getCalendar(id: $id) {
      id
      name
      description
      url
      intervals {
        nextToken
      }
      createdAt
      updatedAt
    }
  }
`;
export const listCalendars = /* GraphQL */ `
  query ListCalendars(
    $filter: ModelCalendarFilterInput
    $limit: Int
    $nextToken: String
  ) {
    listCalendars(filter: $filter, limit: $limit, nextToken: $nextToken) {
      items {
        id
        name
        description
        url
        createdAt
        updatedAt
      }
      nextToken
    }
  }
`;