30 lines
1.0 KiB
TypeScript
30 lines
1.0 KiB
TypeScript
/**
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* Async Use Case interface for queries.
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*
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* Queries do not change system state and return data directly.
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* The output is most often a Result<T, E> where T is the data and E is a domain error code,
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* to handle business rejections explicitly. Use cases do not throw errors; they use error codes in Result.
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*
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* Example:
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* ```typescript
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* export type YourUseCaseError =
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* | 'SPONSOR_NOT_FOUND'
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* | 'PRICING_NOT_CONFIGURED'
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* | 'APPLICATIONS_CLOSED'
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* | 'NO_SLOTS_AVAILABLE'
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* | 'DUPLICATE_PENDING_REQUEST'
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* | 'OFFER_BELOW_MINIMUM';
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*
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* export class ApplyForSponsorshipUseCase implements AsyncUseCase<Input, Result<SuccessDTO, YourUseCaseError>> {
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* async execute(input: Input): Promise<Result<SuccessDTO, YourUseCaseError>> {
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* // implementation
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* }
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* }
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* ```
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*
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* @template Input - The input type for the use case
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* @template Output - The output type returned by the use case, often Result<T, DomainErrorCode>
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*/
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export interface AsyncUseCase<Input, Output> {
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execute(input: Input): Promise<Output>;
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} |