useList pageInfo

I amtrying to access pageInfo in my react js code for following query

 query Customers(
    $paging: OffsetPaging!
    $filter: CustomerFilter!
    $sorting: [CustomerSort!]!
  ) {
    customers(paging: $paging, filter: $filter, sorting: $sorting) {
      nodes {
        id
        isActive
        openProjects
        phoneNumber
        name
        contact {
          email
        }
        company {
          name
        }
      }
      pageInfo {
        hasNextPage
      }
    }
  }

 query Customers(
    $paging: OffsetPaging!
    $filter: CustomerFilter!
    $sorting: [CustomerSort!]!
  ) {
    customers(paging: $paging, filter: $filter, sorting: $sorting) {
      nodes {
        id
        isActive
        openProjects
        phoneNumber
        name
        contact {
          email
        }
        company {
          name
        }
      }
      pageInfo {
        hasNextPage
      }
    }
  }

data provided by useList is missing pageInfo, although i can see it in network call

11 Replies

kapa.ai•2w ago

Hi @-Ghosty. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- I understand you're having an issue accessing the pageInfo property when using the useList hook with GraphQL in refine. This is a common issue when working with GraphQL data providers in refine. The problem is that the default GraphQL data provider in refine doesn't automatically extract the pageInfo field from your GraphQL response. When using useList, the hook expects data in a specific format, and the GraphQL response structure needs to be properly mapped. According to the documentation and issues, there are a couple of approaches to solve this: 1. You can customize your GraphQL data provider to properly extract and return the pageInfo along with your data. The default GraphQL provider might be expecting a different structure than what your API returns. 2. As mentioned in this GitHub issue, the default GraphQL provider has some limitations with pagination structures, especially when working with Relay-style connections that include pageInfo. To access the pageInfo in your code, you might need to use the meta property to customize how the query is processed:

const { data } = useList({
  resource: 'customers',
  meta: {
    gqlQuery: YOUR_QUERY,
    // You might need to add a custom mapping function here
  }
});

const { data } = useList({
  resource: 'customers',
  meta: {
    gqlQuery: YOUR_QUERY,
    // You might need to add a custom mapping function here
  }
});

If you're using the @refinedev/graphql package, you might need to create a custom data provider that properly handles the pagination structure of your API. For a more specific solution, you could check if there's a newer version of the GraphQL data provider available, as mentioned in one of the comments: "we've released a major version on GraphQL, also covering the changes you were asking for. GraphQL data provider should be more usable now" from this issue comment. If you continue to have issues, you might want to consider posting in the refine Discord server for more specific help with your implementation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@280186672791158785> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

passive-yellowOP•2w ago

@kapa.ai i am using @refinedev/nestjs-query for graphql. can you give me example of adding custom map function

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I see you're using @refinedev/nestjs-query for GraphQL and need an example of adding a custom map function to access the pageInfo from your query results. Let me help you with that. When using the NestJS Query data provider, you can customize how the data is mapped from the GraphQL response. Here's an example of how you can add a custom mapping function to access both the data and the pageInfo:

import { Refine } from "@refinedev/core";
import dataProvider, { GraphQLClient } from "@refinedev/nestjs-query";
import { OperationResult } from "@urql/core";
import { GetListParams } from "@refinedev/core";

const client = new GraphQLClient("<https://api.nestjs-query.refine.dev/graphql">);

// Create a custom data provider with mapping function
const customDataProvider = dataProvider(client, {
  getList: {
    // Custom data mapper to extract both nodes and pageInfo
    dataMapper: (response: OperationResult<any>, params: GetListParams) => {
      const resource = params.resource;
      // The response structure follows your GraphQL query
      const data = response.data?.[resource];
      
      // Return both the nodes and pageInfo
      return {
        data: data?.nodes || [],
        pageInfo: data?.pageInfo || {}
      };
    }
  }
});

const App = () => {
  return (
    <Refine
      dataProvider={customDataProvider}
      /* ... */
    >
      {/* ... */}
    </Refine>
  );
};

import { Refine } from "@refinedev/core";
import dataProvider, { GraphQLClient } from "@refinedev/nestjs-query";
import { OperationResult } from "@urql/core";
import { GetListParams } from "@refinedev/core";

const client = new GraphQLClient("<https://api.nestjs-query.refine.dev/graphql">);

// Create a custom data provider with mapping function
const customDataProvider = dataProvider(client, {
  getList: {
    // Custom data mapper to extract both nodes and pageInfo
    dataMapper: (response: OperationResult<any>, params: GetListParams) => {
      const resource = params.resource;
      // The response structure follows your GraphQL query
      const data = response.data?.[resource];
      
      // Return both the nodes and pageInfo
      return {
        data: data?.nodes || [],
        pageInfo: data?.pageInfo || {}
      };
    }
  }
});

const App = () => {
  return (
    <Refine
      dataProvider={customDataProvider}
      /* ... */
    >
      {/* ... */}
    </Refine>
  );
};

Then in your component, you can access both the data and pageInfo:

import { useList } from "@refinedev/core";
import { GetFieldsFromList } from "@refinedev/nestjs-query";
import { CUSTOMERS_LIST_QUERY } from "./queries"; // Your GraphQL query

const MyComponent = () => {
  const { data, pageInfo } = useList({
    resource: "customers",
    meta: {
      gqlQuery: CUSTOMERS_LIST_QUERY
    }
  });
// Now you can access pageInfo
  console.log("Has next page:", pageInfo?.hasNextPage);
  
  return (
    // Your component JSX
  );
};

import { useList } from "@refinedev/core";
import { GetFieldsFromList } from "@refinedev/nestjs-query";
import { CUSTOMERS_LIST_QUERY } from "./queries"; // Your GraphQL query

const MyComponent = () => {
  const { data, pageInfo } = useList({
    resource: "customers",
    meta: {
      gqlQuery: CUSTOMERS_LIST_QUERY
    }
  });
// Now you can access pageInfo
  console.log("Has next page:", pageInfo?.hasNextPage);
  
  return (
    // Your component JSX
  );
};

This approach is based on the customization options available in the @refinedev/nestjs-query package as documented in NestJS Query documentation and GraphQL data provider documentation. If you're using GraphQL with graphql-tag, you can also define your queries in a separate file as shown in the Usage with graphql-tag section of the documentation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@280186672791158785> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

passive-yellowOP•2w ago

@kapa.ai pageInfo is not given by useList and how are we using GetFieldsFromList in given example

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand your frustration with accessing pageInfo from the useList hook when using the NestJS Query data provider. Let me clarify how this works and explain the GetFieldsFromList utility. Accessing pageInfo with useList According to the documentation, the default implementation of the NestJS Query data provider doesn't automatically expose the pageInfo field in the response from useList. This is because the data provider normalizes the GraphQL response structure to match refine's expected format. As mentioned in this GitHub issue, GraphQL data providers have some limitations with pagination structures, especially when working with connection-style responses that include pageInfo. Understanding GetFieldsFromList The GetFieldsFromList utility type is used to extract the correct TypeScript types from your GraphQL query results. Here's how it works based on the NestJS Query documentation:

import { useList } from "@refinedev/core";
import { GetFieldsFromList } from "@refinedev/nestjs-query";
import { PostsListQuery } from "src/graphql/types";
import { POSTS_LIST_QUERY } from "./queries";

const { data } = useList<GetFieldsFromList<PostsListQuery>>({
  meta: { gqlQuery: POSTS_LIST_QUERY },
});

import { useList } from "@refinedev/core";
import { GetFieldsFromList } from "@refinedev/nestjs-query";
import { PostsListQuery } from "src/graphql/types";
import { POSTS_LIST_QUERY } from "./queries";

const { data } = useList<GetFieldsFromList<PostsListQuery>>({
  meta: { gqlQuery: POSTS_LIST_QUERY },
});

In this example, GetFieldsFromList<PostsListQuery> transforms your GraphQL query type to extract just the fields from the nodes array, making it easier to work with the returned data. For example, if your query returns:

{
  blogPosts: {
    nodes: Array<{ id: string }>,
    totalCount: number
  }
}

{
  blogPosts: {
    nodes: Array<{ id: string }>,
    totalCount: number
  }
}

GetFieldsFromList will convert it to just { id: string } for type safety. Solution for accessing pageInfo To access the pageInfo from your query, you'll need to customize the data provider. The NestJS Query data provider doesn't currently support meta.gqlVariables according to the documentation on handling filters. You would need to create a custom data provider that properly extracts and returns the pageInfo along with your data. Unfortunately, the knowledge sources don't provide a specific example for NestJS Query, but the approach would be similar to customizing any GraphQL data provider in refine. If you need more specific guidance, I recommend checking the refine Discord server for community support or creating a GitHub issue to request this feature for the NestJS Query data provider. Would you like me to provide more information on any specific aspect of this issue? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@280186672791158785> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

passive-yellowOP•2w ago

@kapa.ai its not working for my query

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand that you're still having issues with accessing the pageInfo from your NestJS Query GraphQL response. Based on the knowledge sources, there appears to be a known issue with the NestJS Query data provider and how it handles pagination information. Looking at the GitHub issues, there are several related problems: 1. In issue #4572, there was a bug with the NestJS CRUD data provider where it wasn't properly returning data in the expected format. 2. In issue #5832, there was a specific issue with useInfiniteList pagination being broken with NestJS Query. 3. In issue #6289, a user had trouble with GraphQL data not being properly populated. The core issue seems to be that the NestJS Query data provider might not be properly mapping the GraphQL response structure to include the pageInfo field in the returned data. Unfortunately, the knowledge sources don't provide a specific solution for your exact query structure. The NestJS Query data provider might be transforming your response and only returning the nodes array without the pageInfo. If you're still experiencing issues, you might want to: 1. Check if there's a newer version of the @refinedev/nestjs-query package that addresses this issue 2. Consider creating a custom data provider that extends the NestJS Query provider but preserves the pageInfo field 3. Use the useCustom hook instead of useList to have more control over the response structure For more specific help with your implementation, I recommend: - Posting your complete code in the refine Discord server - Creating a GitHub issue with a minimal reproducible example Would you be able to share more details about your implementation, such as your data provider setup and how you're using the useList hook? ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@280186672791158785> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

useList pageInfo

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