什么类型的Relay mutator配置适合插入新记录？

我正在深入研究GraphQL和Relay.到目前为止,对我而言,一切都相对顺利和容易理解.我有一个GraphQL架构Accounts和Teams.两者之间没有关系.我为帐户和团队的连接进行了一些特定于Relay的GraphQL调整.以下是这两个连接的示例查询...

{
  viewer {
    teams {
      edges {
        node {
          id,
          name
        }
      }
    }
    accounts {
      edges {
        node {
          id,
          username
        }
      }
    }
  }
}

我已经准备好了一个GraphQL变异,可以创建一个新帐户.这是GraphQL表示的......

type Mutation {
  newAccount(input: NewAccountInput!): NewAccountPayload
}

input NewAccountInput {
  username: String!
  password: String!
  clientMutationId: String!
}

type NewAccountPayload {
  account: Account
  clientMutationId: String!
}

type Account implements Node {
  id: ID!
  username: String!
  date_created: String!
}

我现在正在尝试创建使用此GraphQL突变的客户端中继突变.不过,我对如何正确地做到这一点感到很困惑.我已经按照例子,我想出的任何事情似乎都没有正确运行.我倾向于得到与片段组成有关的错误.

如果我正在编写使用此GraphQL突变的Relay突变,那么相应的mutator配置会是什么？我应该用RANGE_ADD吗？

对于您的客户端变异,您可以使用以下内容:

export default class AddAccountMutation extends Relay.Mutation {
   static fragments = {
      viewer: () => Relay.QL`
         fragment on Viewer {
            id,
         }
       `,
   };

   getMutation() {
      return Relay.QL`mutation{addAccount}`;
   }

   getVariables() {
      return {
         newAccount: this.props.newAccount,
      };
   }

   getFatQuery() {
      return Relay.QL`
         fragment on AddAccountPayload {
            accountEdge,
            viewer {
               accounts,
            },
         }
       `;
    }

   getConfigs() {
      return [{
         type: 'RANGE_ADD',
         parentName: 'viewer',
         parentID: this.props.viewer.id,
         connectionName: 'accounts',
         edgeName: 'accountEdge',
         rangeBehaviors: {
            '': 'append',
         },
      }];
   }

   getOptimisticResponse() {
      return {
         accountEdge: {
            node: {
               userName: this.props.newAccount.userName,
            },
         },
         viewer: {
            id: this.props.viewer.id,
         },
      };
   }
}

var GraphQLAddAccountMutation = mutationWithClientMutationId({
   name: 'AddAccount',
   inputFields: {
      newAccount: { type: new GraphQLNonNull(NewAccountInput) } 
   },
   outputFields: {
      accountEdge: {
         type: GraphQLAccountEdge,
         resolve: async ({localAccountId}) => {
            var account = await getAccountById(localAccountId);
            var accounts = await getAccounts();
            return {
              cursor: cursorForObjectInConnection(accounts, account)
              node: account,
            };
         }
      },
      viewer: {
        type: GraphQLViewer,
        resolve: () => getViewer()
      },
   },
   mutateAndGetPayload: async ({ newAccount }) => {
      var localAccountId = await createAccount(newAccount);
      return {localAccountId};
   }
});

var {
   connectionType: AccountsConnection,
   edgeType: GraphQLAccountEdge,
} = connectionDefinitions({
   name: 'Account',
   nodeType: Account,
});

function getCursor(dataList, item) {
   for (const i of dataList) {
      if (i._id.toString() === item._id.toString()) {
         let cursor = cursorForObjectInConnection(dataList, i);
         return cursor;
      } 
   }
}