Custom dataProvider create and update errors
Hi, I am getting this error in my customDataProvider, How can I solve it
Type '<TData extends BaseRecord = BaseRecord, TVariables extends ILead = ILead>({ variables }: CreateParams<TVariables>) => Promise<CreateResponse<TData>>' is not assignable to type '<TData extends BaseRecord = BaseRecord, TVariables = {}>(params: CreateParams<TVariables>) => Promise<CreateResponse<TData>>'.
Types of parameters '__0' and 'params' are incompatible.
Type 'CreateParams<TVariables>' is not assignable to type 'CreateParams<ILead>'.
Type 'TVariables' is not assignable to type 'ILead'.ts(2322)
types.d.ts(403, 53): This type parameter might need an
extends ILead
constraint.
types.d.ts(403, 5): The expected type comes from property 'create' which is declared here on type 'CustomDataProvider'2 Replies
Hi @muthaiga. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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To address the type error you're encountering in your custom
dataProvider
, it seems like the issue is related to the type constraints of the TVariables
parameter in your create
and update
methods. Specifically, the error indicates that TVariables
should extend ILead
.
Here's a step-by-step guide to resolve this issue:
1. Ensure Type Constraints: Make sure that the TVariables
type parameter in your create
and update
methods extends ILead
.
2. Adjust Method Signatures: Update the method signatures to include the necessary type constraints.
Here's an example of how you can adjust your create
and update
methods:
In this example, the TVariables
type parameter is constrained to extend ILead
, which should resolve the type error.
For more information on creating and customizing data providers, you can refer to the Refine documentation on data providers (https://refine.dev/docs/data/data-provider/#faq).
If you need to override specific methods of existing data providers, you can use the spread syntax as shown in the example for overriding the update
method (https://refine.dev/docs/data/data-provider/#faq).
If you continue to face issues, please provide more details or refer to the Refine GitHub issues (https://github.com/refinedev/refine/issues) for additional support.
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