fighting with GetListResponse
I have a perfectly reasonable server API that returns an object:
this would work fine with raw React Query - I'd just implement
select
- but useTable
is frustrating the simple elegance of useQuery
by assuming the data is returned as a bare list (the tutorial assumes that metadata goes in response headers, which is not especially standard). I will probably make this work by implementing a DataProvider, but I wanted to register that the types could be improved considerably here around useTable
to support different shapes of APIs.21 Replies
Hi @David Golightly. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
----------------------
It seems like you're encountering a common issue when working with
useTable
in refine, where the expected data structure doesn't align with your API's response format. The useTable
hook in refine is designed to work with a specific data structure, typically expecting an array of items and a total count, as defined by the GetListResponse
interface:
To handle your API's response structure, you can use the select
function within the queryOptions
of useTable
to transform the data into the expected format. Here's an example of how you might achieve this:
This approach allows you to manipulate the data returned by your API to fit the expected GetListResponse
format used by useTable
. By doing so, you can leverage the existing functionality of useTable
without needing to implement a custom DataProvider.
For more details on how to use queryOptions
and the select
function, you can refer to the useTable API documentation (https://refine.dev/docs/ui-integrations/ant-design/hooks/use-table/#properties-1).
If you need further customization or if this approach doesn't fully meet your needs, implementing a custom DataProvider might indeed be a viable solution. However, using the select
function is a good first step to try and align your API's response with refine's expectations.
----------------------
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correct-apricotOP•4mo ago
@kapa.ai that's not typesafe
Let me check the knowledge base for you. One moment! :books:
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To achieve type safety while transforming your API response to fit the expected structure of
useTable
, you can define a custom type for your API response and use TypeScript's type assertions or type guards to ensure that the transformation is type-safe.
Here's an example of how you can do this:
1. Define your API response type:
2. Use the select
function with type assertions to transform the data:
By explicitly typing the response
parameter in the select
function as ApiResponse
, you ensure that TypeScript checks the structure of the response object, providing type safety.
For more information on using useTable
and handling custom data structures, you can refer to the useTable API documentation (https://refine.dev/docs/ui-integrations/ant-design/hooks/use-table/#properties-1). If you need further customization, consider implementing a custom DataProvider that aligns with your API's response format.
----------------------
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correct-apricotOP•4mo ago
@kapa.ai when I do that I get the type error:
Type GetListResponse<BaseRecord> has no properties in common with type <MyType>
Let me check the knowledge base for you. One moment! :books:
----------------------
The error you're encountering suggests a type mismatch between the expected
GetListResponse<BaseRecord>
and your custom type. To resolve this, you need to ensure that the transformation in the select
function aligns with the expected GetListResponse
structure.
Here's a step-by-step approach to address this:
1. Define the Custom Type: Ensure your custom type matches the structure of GetListResponse
.
2. Transform the Data: Use the select
function to transform your API response into the expected GetListResponse
format.
3. Ensure Type Compatibility: Use type assertions to explicitly tell TypeScript that the transformed data matches GetListResponse<Item>
.
By following these steps, you should be able to transform your API response into a type-safe format that useTable
can work with. If you continue to face issues, consider reviewing the useTable API documentation (https://refine.dev/docs/ui-integrations/ant-design/hooks/use-table/#properties-1) for additional guidance on handling custom data structures.
----------------------
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correct-apricotOP•4mo ago
@kapa.ai the return of
select
is compatible, the problem is the type of useTable
assumes the initial payload conforms to GetListResponse
and it doesn't need toLet me check the knowledge base for you. One moment! :books:
----------------------
It seems like the core issue is that
useTable
expects the initial payload to conform to the GetListResponse
type, which might not align with your API's response structure. Unfortunately, the current implementation of useTable
in refine assumes this structure, and there isn't a built-in way to change this expectation directly.
However, you can work around this limitation by transforming your API response to fit the expected structure using the select
function, as previously discussed. This transformation occurs after the data is fetched, so it doesn't change the initial type expectation but allows you to work with the data in a compatible format.
If this approach doesn't fully meet your needs, you might consider implementing a custom DataProvider that handles the transformation at the data fetching level, ensuring that the data returned to useTable
already conforms to the expected structure.
For more information on using useTable
and handling custom data structures, you can refer to the useTable API documentation (https://refine.dev/docs/ui-integrations/ant-design/hooks/use-table/#properties-1).
If you have specific requirements or further questions, feel free to ask, and I'll do my best to assist you with the information available.
----------------------
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correct-apricotOP•4mo ago
@kapa.ai yeah I'm not changing my API structure to get around an artificial framework limitation, thanks though
Let me check the knowledge base for you. One moment! :books:
----------------------
Hmm, I don't know enough to give you a confident answer yet. It seems like the current implementation of
useTable
in refine expects a specific data structure, which might not align with your API's response. You might want to explore implementing a custom DataProvider to handle your specific API structure. For more details, you can refer to the refine documentation (https://refine.dev/docs/).
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
----------------------<@736823162695581727> kapa.ai is still learning and improving, please let us know how it did by reacting below
correct-apricotOP•4mo ago
@kapa.ai I don't want to implement DataProvider, I want to implement
select
like I do in React QueryLet me check the knowledge base for you. One moment! :books:
----------------------
To implement a
select
function similar to how you would in React Query, you can use the queryOptions
parameter in useTable
to transform the data after it is fetched. This allows you to reshape the data to fit the expected structure without altering your API or implementing a custom DataProvider.
Here's how you can do it:
In this example, MyType
is your custom type that matches the structure of your API response. The select
function transforms this response into the format expected by useTable
, which is a GetListResponse
with data
and total
properties.
This approach allows you to leverage the select
function to handle the transformation, similar to how you would in React Query, without needing to change your API or implement a DataProvider.
For more information on using useTable
and handling custom data structures, you can refer to the useTable API documentation (https://refine.dev/docs/ui-integrations/ant-design/hooks/use-table/#properties-1).
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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correct-apricotOP•4mo ago
@kapa.ai we're going in circles, thanks though!
Let me check the knowledge base for you. One moment! :books:
----------------------
Hmm, I don't know enough to give you a confident answer yet. It seems like the current implementation of
useTable
in refine expects a specific data structure, which might not align with your API's response. You might want to explore implementing a custom DataProvider to handle your specific API structure. For more details, you can refer to the refine documentation (https://refine.dev/docs/).
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
----------------------<@736823162695581727> kapa.ai is still learning and improving, please let us know how it did by reacting below
correct-apricotOP•4mo ago
For future reference, the thing to do here is skip the DataProvider layer/
select
combo and just implement queryFn
to return the shape of GetListResponse