小编Nic*_*ord的帖子

将变量传递到 useQuery 钩子时遇到一个奇怪的问题。

查询：

const GET_USER_BY_ID= gql`
  query($id: ID!) {
    getUser(id: $id) {
      id
      fullName
      role
    }
  }
`;

调用查询：

const DisplayUser: React.FC<{ id: string }> = ({ id }) => {
  const { data, error } = useQuery(GET_USER_BY_ID, {
    variables: { id },
  });

  return <div>{JSON.stringify({ data, error })}</div>;
};

渲染组件：

<DisplayUser id="5e404fa72b819d1410a3164c" />

这会产生错误：

"Argument \"id\" of required type \"ID!\" was provided the variable \"$id\" which was not provided a runtime value."

从 GraphQL Playground 调用查询返回预期结果：

{
  "data": …