https://github.com/julianalonso/usecase

Use case base class to use .then and .catch
https://github.com/julianalonso/usecase

catch ios operationqueue then usecase

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Use case base class to use .then and .catch

• Host: GitHub
• URL: https://github.com/julianalonso/usecase
• Owner: JulianAlonso
• License: other
• Created: 2017-02-13T16:43:43.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2018-05-23T11:14:22.000Z (over 6 years ago)
• Last Synced: 2024-12-10T20:39:54.811Z (about 1 month ago)
• Topics: catch, ios, operationqueue, then, usecase
• Language: Swift
• Size: 21.5 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
UseCase

=======

Use case library.

Use case base class to use `.common` `.then` and `.catch` after execute.

Any use case subclass must be initialized with a **OperationQueue**.

This class executes the code under an **Operation**, this means that UseCase can be suspended, or cancelled.

## How use it.

Create a class or struct for the request and the response.

Then create a subclass of UseCase with yours UseCaseRequest and UseCaseResponse.

Override the main method, this receives a operation object. When your code finish, set operation.response or operation.error to end the execution of your code.

## Example:

```swift

struct TestRequest {

}

struct TestResponse {

}

enum TestError: Error {

    case noRequest

}

final class TestUseCase: UseCase {

    override func main(request: TestRequest?, _ operation: UseCaseOperation) {

        DispatchQueue.global(qos: .background).asyncAfter(deadline: .now() + .milliseconds(600)) {

            if request != nil {

                operation.response = TestResponse()

            } else {

                operation.error = TestError.noRequest

            }

        }

    }

}

//Using TestUseCase:

useCase.execute()

.common {

    print("Im finished.")

}

.then { response in

    print("With response \(response)")

}

.catch { (error) in

    print("With error \(error)")

}

```

## Contributing:

If you find and issue, please, write a test that reproduce it and notify me by github issues.

If you have some idea about how to improve it, fork it, write your code, test it and send me a pull request.

## Developed by:

[Julián Alonso](https://twitter.com/maisterJuli).

## LICENSE:

Apache 2.0 license. See [`LICENSE`](LICENSE) file for details