如何访问 apollo 客户端错误对象属性

Question

我正在向 GraphQL 服务器提取查询，如果出现问题，该服务器会抛出错误。现在，我想访问该错误，但 Apollo Client 向我显示了一般 Error: Network error: Response not successful: Received status code 500。通过将 onError 属性添加到我的查询中，我可以在控制台中看到错误对象，但前提是它包含在 {} 中，否则它只是文本。

这是我的代码：

  const { data, loadMore, loading, error, retry } = useRetryableQuery<
    GetDevices,
    DevicesQueryVariables
  >(devicesQueries.GetDevices, {
    onError: (networkError) => {
      console.log(networkError); //this will show me the error as a whole text and not an object
      console.log({ networkError }) // this will show me an object which its properties I cannot access
    },
    errorPolicy: "all",
    notifyOnNetworkStatusChange: true,
    paginationPath: ["paging"],
    itemsPaths: [["filteredDevices", "rows"]],
    variables: {
      ...queryVariables,
      connectionPaging: {
        offset: 0,
        limit: PAGE_SIZE,
      },
    },
  });

如何访问嵌套在 networkError 对象中的属性？

第一个屏幕截图没有 {} 第二个是 {}

提前致谢！

Answer 1

该问题与此 Apollo 客户端问题相关：useQuery() refetch throws on error instead of flowing through hook，因此直接从 ApolloProvider 获取错误允许我访问从后端发送的错误：

const errorLink = useMemo(
() =>
  onError((error) => {
    const message = getApolloError({ graphQLErrors: error.graphQLErrors 
 });
    if (message) {
      localStorage.setItem("error", message);
    } else {
      localStorage.removeItem("error");
    }
    if (message === "Session expired.") {
      logout(true);
    }
  }),
 [logout]
);

const client = useMemo(
 () =>
   new ApolloClient({
     cache,
     link: ApolloLink.from([errorLink, authLink, httpLink]),
     defaultOptions: {
       watchQuery: {
         fetchPolicy: "network-only",
       },
       query: {
         fetchPolicy: "network-only",
       },
     },
   }),
 [httpLink, errorLink]
);

如何访问 apollo 客户端错误对象属性

how to access apollo client error object properties

javascript

apollo-client