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Map URLSession errors into CheckoutNetworkError
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38 changes: 38 additions & 0 deletions
38
Sources/CheckoutNetwork/CheckoutNetworkClient+AsyncWrappers.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // | ||
| // CheckoutNetworkClient+AsyncWrappers.swift | ||
| // | ||
| // | ||
| // Created by Okhan Okbay on 20/02/2024. | ||
| // | ||
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| import Foundation | ||
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| public extension CheckoutNetworkClient { | ||
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| func runRequest<T: Decodable>(with configuration: RequestConfiguration) async throws -> T { | ||
| return try await withCheckedThrowingContinuation { continuation in | ||
| runRequest(with: configuration) { (result: Result<T, Error>) in | ||
| switch result { | ||
| case .success(let response): | ||
| continuation.resume(returning: response) | ||
| case .failure(let error): | ||
| continuation.resume(throwing: error) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| func runRequest(with configuration: RequestConfiguration) async throws { | ||
| return try await withCheckedThrowingContinuation { continuation in | ||
| runRequest(with: configuration) { (error: Error?) in | ||
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| guard let error = error else { | ||
| continuation.resume(returning: Void()) | ||
| return | ||
| } | ||
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| continuation.resume(throwing: error) | ||
| } | ||
| } | ||
| } | ||
| } |
48 changes: 48 additions & 0 deletions
48
Sources/CheckoutNetwork/CheckoutNetworkClient+ErrorHandling.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| // | ||
| // CheckoutNetworkClient+ErrorHandling.swift | ||
| // | ||
| // | ||
| // Created by Okhan Okbay on 20/02/2024. | ||
| // | ||
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| import Foundation | ||
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| extension CheckoutNetworkClient { | ||
| func getErrorFromResponse(_ response: URLResponse?, data: Data?) -> Error? { | ||
| guard let response = response as? HTTPURLResponse else { | ||
| return CheckoutNetworkError.invalidURLResponse | ||
| } | ||
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| guard response.statusCode != 422 else { | ||
| do { | ||
| let errorReason = try JSONDecoder().decode(ErrorReason.self, from: data ?? Data()) | ||
| return CheckoutNetworkError.unprocessableContent(reason: errorReason) | ||
| } catch { | ||
| return CheckoutNetworkError.noDataResponseReceived | ||
| } | ||
| } | ||
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| guard (200..<300).contains(response.statusCode) else { | ||
| return CheckoutNetworkError.unexpectedHTTPResponse(code: response.statusCode) | ||
| } | ||
| return nil | ||
| } | ||
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| func convertDataTaskErrorsToCheckoutNetworkError(error: Error) -> CheckoutNetworkError { | ||
| let error = error as NSError | ||
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| switch error.code { | ||
| case NSURLErrorNotConnectedToInternet, | ||
| NSURLErrorTimedOut, | ||
| NSURLErrorNetworkConnectionLost, | ||
| NSURLErrorInternationalRoamingOff, | ||
| NSURLErrorCannotConnectToHost, | ||
| NSURLErrorServerCertificateUntrusted: | ||
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| return .connectivity | ||
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| default: | ||
| return .other(underlyingError: error) | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,23 +1,67 @@ | ||
| // | ||
| // CheckoutNetworkError.swift | ||
| // | ||
| // | ||
| // | ||
| // Created by Alex Ioja-Yang on 20/06/2022. | ||
| // | ||
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| import Foundation | ||
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| public enum CheckoutNetworkError: Error, Equatable { | ||
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| /// Review the url you provided | ||
| case invalidURL | ||
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| /// Network response was not in the 200 range | ||
| case unexpectedResponseCode(code: Int) | ||
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| /// Network call and completion appear valid but no data was returned making the parsing impossible. Use runRequest method with NoDataResponseCompletionHandler if no data is expected (HTTP 204 is a success case with no content being returned) | ||
| case noDataResponseReceived | ||
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| /// Network response returned with HTTP Code 422 | ||
| case invalidData(reason: ErrorReason) | ||
| public enum CheckoutNetworkError: LocalizedError, Equatable { | ||
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| /// Review the url you provided | ||
| case invalidURL | ||
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| /// When a response could not be bound to an instance of HTTPURLResponse | ||
| case invalidURLResponse | ||
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| /// Network response was not in the 200 range | ||
| case unexpectedHTTPResponse(code: Int) | ||
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| /// Network call and completion appear valid but no data was returned making the parsing impossible. Use runRequest method with NoDataResponseCompletionHandler if no data is expected (HTTP 204 is a success case with no content being returned) | ||
| case noDataResponseReceived | ||
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| /// Network response returned with HTTP Code 422 | ||
| case unprocessableContent(reason: ErrorReason) | ||
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| /// Connectivity errors mapped from URLSession.dataTask()'s error | ||
| /// | ||
| /// Only the following are mapped into this error case: | ||
| /// NSURLErrorNotConnectedToInternet | ||
| /// NSURLErrorTimedOut | ||
| /// NSURLErrorNetworkConnectionLost | ||
| /// NSURLErrorInternationalRoamingOff | ||
| /// NSURLErrorCannotConnectToHost | ||
| /// NSURLErrorServerCertificateUntrusted | ||
| case connectivity | ||
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| /// All the other errors that can be received from URLSession. | ||
| /// Use the underlying error if you need more granular error handling. | ||
| /// Underlying errors here are in NSURLErrorDomain. | ||
| case other(underlyingError: NSError) | ||
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| public var errorDescription: String? { | ||
| switch self { | ||
| case .invalidURL: | ||
| return "Could not instantiate a URL with the provided String value" | ||
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| case .invalidURLResponse: | ||
| return "Could not instantiate an HTTPURLResponse with the received response value" | ||
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| case .unexpectedHTTPResponse(let code): | ||
| return "Received an unexpected HTTP response: \(code)" | ||
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| case .noDataResponseReceived: | ||
| return "No data is received in the response body. Use the method with NoDataResponseCompletionHandler if no data was expected" | ||
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| case .unprocessableContent(let reason): | ||
| return "HTTP response 422 is received with: \(reason)" | ||
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| case .connectivity: | ||
| return "There is a problem with the internet connection" | ||
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| case .other(let error): | ||
| return "An unhandled error is produced: \(error)" | ||
| } | ||
| } | ||
| } |
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