DownloadRequest Class Reference

Options
A set of options to be executed prior to moving a downloaded file from the temporary URL to the destination URL.
See more
Declaration
Swift

public struct Options : OptionSet, Sendable

Destination

Destination
A closure executed once a DownloadRequest has successfully completed in order to determine where to move the temporary file written to during the download process. The closure takes two arguments: the temporary file URL and the HTTPURLResponse, and returns two values: the file URL where the temporary file should be moved and the options defining how the file should be moved.

Note
Downloads from a local file:// URLs do not use the Destination closure, as those downloads do not return an HTTPURLResponse. Instead the file is merely moved within the temporary directory.
Declaration
Swift

public typealias Destination = @Sendable (_ temporaryURL: URL, _ response: HTTPURLResponse) -> (destinationURL: URL, options: Options)


                    
                    
                    suggestedDownloadDestination(for:in:options:)

Creates a download file destination closure which uses the default file manager to move the temporary file to a file URL in the first available directory with the specified search path directory and search path domain mask.

Declaration

Swift

public class func suggestedDownloadDestination(for directory: FileManager.SearchPathDirectory = .documentDirectory,
                                               in domain: FileManager.SearchPathDomainMask = .userDomainMask,
                                               options: Options = []) -> Destination

Parameters

`directory`	The search path directory. `.documentDirectory` by default.
`domain`	The search path domain mask. `.userDomainMask` by default.
`options`	`DownloadRequest.Options` used when moving the downloaded file to its destination. None by default.

Return Value

The Destination closure.

Downloadable

Downloadable
Type describing the source used to create the underlying URLSessionDownloadTask.
See more
Declaration
Swift

public enum Downloadable

Mutable State

resumeData
If the download is resumable and is eventually cancelled or fails, this value may be used to resume the download using the download(resumingWith data:) API.

Note
For more information about resumeData, see Apple’s documentation.
Declaration
Swift

public var resumeData: Data? { get }
fileURL
If the download is successful, the URL where the file was downloaded.
Declaration
Swift

public var fileURL: URL? { get }

Initial State

downloadable
Downloadable value used for this instance.
Declaration
Swift

public let downloadable: Downloadable


                    
                    
                    task(forResumeData:using:)

Creates a URLSessionTask from the provided resume data.

Declaration

Swift

public func task(forResumeData data: Data, using session: URLSession) -> URLSessionTask

Parameters

`data`	`Data` used to resume the download.
`session`	`URLSession` used to create the `URLSessionTask`.

Return Value

The URLSessionTask created.

cancel()
Cancels the instance. Once cancelled, a DownloadRequest can no longer be resumed or suspended.

Note

This method will NOT produce resume data. If you wish to cancel and produce resume data, use cancel(producingResumeData:) or cancel(byProducingResumeData:).
Declaration
Swift

@discardableResult override public func cancel() -> Self
Return Value

The instance.
cancel(producingResumeData:)
Cancels the instance, optionally producing resume data. Once cancelled, a DownloadRequest can no longer be resumed or suspended.

Note

If producingResumeData is true, the resumeData property will be populated with any resume data, if available.
Declaration
Swift

@discardableResult public func cancel(producingResumeData shouldProduceResumeData: Bool) -> Self
Return Value

The instance.


                    
                    
                    cancel(byProducingResumeData:)

Cancels the instance while producing resume data. Once cancelled, a DownloadRequest can no longer be resumed or suspended.

Note

The resume data passed to the completion handler will also be available on the instance’s resumeData property.

Declaration

Swift

@discardableResult
@preconcurrency
public func cancel(byProducingResumeData completionHandler: @escaping @Sendable (_ data: Data?) -> Void) -> Self

Parameters


                                completionHandler

The completion handler that is called when the download has been successfully cancelled. It is not guaranteed to be called on a particular queue, so you may want use an appropriate queue to perform your work.

Return Value

The instance.


                    
                    
                    validate(_:)

Validates the request, using the specified closure.

Note

If validation fails, subsequent calls to response handlers will have an associated error.

Declaration

Swift

@discardableResult
public func validate(_ validation: @escaping Validation) -> Self

Parameters


                                validation

Validation closure to validate the response.

Return Value

The instance.

Response Serialization


                    
                    
                    response(queue:completionHandler:)

Adds a handler to be called once the request has finished.

Declaration

Swift

@discardableResult
@preconcurrency
public func response(queue: DispatchQueue = .main,
                     completionHandler: @escaping @Sendable (AFDownloadResponse<URL?>) -> Void)
    -> Self

Parameters

`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`completionHandler`	The code to be executed once the request has finished.

Return Value

The request.


                    
                    
                    response(queue:responseSerializer:completionHandler:)

Adds a handler to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@discardableResult
public func response<Serializer: DownloadResponseSerializerProtocol>(queue: DispatchQueue = .main,
                                                                     responseSerializer: Serializer,
                                                                     completionHandler: @escaping @Sendable (AFDownloadResponse<Serializer.SerializedObject>) -> Void)
    -> Self

Parameters

`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`responseSerializer`	The response serializer responsible for serializing the request, response, and data contained in the destination `URL`.
`completionHandler`	The code to be executed once the request has finished.

Return Value

The request.


                    
                    
                    response(queue:responseSerializer:completionHandler:)

Adds a handler to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@discardableResult
public func response<Serializer: ResponseSerializer>(queue: DispatchQueue = .main,
                                                     responseSerializer: Serializer,
                                                     completionHandler: @escaping @Sendable (AFDownloadResponse<Serializer.SerializedObject>) -> Void)
    -> Self

Parameters

`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`responseSerializer`	The response serializer responsible for serializing the request, response, and data contained in the destination `URL`.
`completionHandler`	The code to be executed once the request has finished.

Return Value

The request.


                    
                    
                    responseURL(queue:completionHandler:)

Adds a handler using a URLResponseSerializer to be called once the request is finished.

Declaration

Swift

@discardableResult
@preconcurrency
public func responseURL(queue: DispatchQueue = .main,
                        completionHandler: @escaping @Sendable (AFDownloadResponse<URL>) -> Void) -> Self

Parameters

`queue`	The queue on which the completion handler is called. `.main` by default.
`completionHandler`	A closure to be executed once the request has finished.

Return Value

The request.


                    
                    
                    responseData(queue:dataPreprocessor:emptyResponseCodes:emptyRequestMethods:completionHandler:)

Adds a handler using a DataResponseSerializer to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@discardableResult
@preconcurrency
public func responseData(queue: DispatchQueue = .main,
                         dataPreprocessor: any DataPreprocessor = DataResponseSerializer.defaultDataPreprocessor,
                         emptyResponseCodes: Set<Int> = DataResponseSerializer.defaultEmptyResponseCodes,
                         emptyRequestMethods: Set<HTTPMethod> = DataResponseSerializer.defaultEmptyRequestMethods,
                         completionHandler: @escaping @Sendable (AFDownloadResponse<Data>) -> Void) -> Self

Parameters

`queue`	The queue on which the completion handler is called. `.main` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the `completionHandler`. `PassthroughPreprocessor()` by default.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.
`completionHandler`	A closure to be executed once the request has finished.

Return Value

The request.


                    
                    
                    responseString(queue:dataPreprocessor:encoding:emptyResponseCodes:emptyRequestMethods:completionHandler:)

Adds a handler using a StringResponseSerializer to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@discardableResult
@preconcurrency
public func responseString(queue: DispatchQueue = .main,
                           dataPreprocessor: any DataPreprocessor = StringResponseSerializer.defaultDataPreprocessor,
                           encoding: String.Encoding? = nil,
                           emptyResponseCodes: Set<Int> = StringResponseSerializer.defaultEmptyResponseCodes,
                           emptyRequestMethods: Set<HTTPMethod> = StringResponseSerializer.defaultEmptyRequestMethods,
                           completionHandler: @escaping @Sendable (AFDownloadResponse<String>) -> Void) -> Self

Parameters

`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the `completionHandler`. `PassthroughPreprocessor()` by default.
`encoding`	The string encoding. Defaults to `nil`, in which case the encoding will be determined from the server response, falling back to the default HTTP character set, `ISO-8859-1`.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.
`completionHandler`	A closure to be executed once the request has finished.

Return Value

The request.


                    
                    
                    responseJSON(queue:dataPreprocessor:emptyResponseCodes:emptyRequestMethods:options:completionHandler:)

Adds a handler using a JSONResponseSerializer to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@available(*, deprecated, message: "responseJSON deprecated and will be removed in Alamofire 6. Use responseDecodable instead.")
@discardableResult
@preconcurrency
public func responseJSON(queue: DispatchQueue = .main,
                         dataPreprocessor: any DataPreprocessor = JSONResponseSerializer.defaultDataPreprocessor,
                         emptyResponseCodes: Set<Int> = JSONResponseSerializer.defaultEmptyResponseCodes,
                         emptyRequestMethods: Set<HTTPMethod> = JSONResponseSerializer.defaultEmptyRequestMethods,
                         options: JSONSerialization.ReadingOptions = .allowFragments,
                         completionHandler: @escaping @Sendable (AFDownloadResponse<Any>) -> Void) -> Self

Parameters

`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the `completionHandler`. `PassthroughPreprocessor()` by default.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.
`options`	`JSONSerialization.ReadingOptions` used when parsing the response. `.allowFragments` by default.
`completionHandler`	A closure to be executed once the request has finished.

Return Value

The request.


                    
                    
                    responseDecodable(of:queue:dataPreprocessor:decoder:emptyResponseCodes:emptyRequestMethods:completionHandler:)

Adds a handler using a DecodableResponseSerializer to be called once the request has finished.

Note

This handler will read the entire downloaded file into memory, use with caution.

Declaration

Swift

@discardableResult
@preconcurrency
public func responseDecodable<T: Decodable>(of type: T.Type = T.self,
                                            queue: DispatchQueue = .main,
                                            dataPreprocessor: any DataPreprocessor = DecodableResponseSerializer<T>.defaultDataPreprocessor,
                                            decoder: any DataDecoder = JSONDecoder(),
                                            emptyResponseCodes: Set<Int> = DecodableResponseSerializer<T>.defaultEmptyResponseCodes,
                                            emptyRequestMethods: Set<HTTPMethod> = DecodableResponseSerializer<T>.defaultEmptyRequestMethods,
                                            completionHandler: @escaping @Sendable (AFDownloadResponse<T>) -> Void) -> Self where T: Sendable

Parameters

`type`	`Decodable` type to decode from response data.
`queue`	The queue on which the completion handler is dispatched. `.main` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the `completionHandler`. `PassthroughPreprocessor()` by default.
`decoder`	`DataDecoder` to use to decode the response. `JSONDecoder()` by default.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.
`completionHandler`	A closure to be executed once the request has finished.

Return Value

The request.

DataRequest / UploadRequest


                    
                    
                    publishResponse(using:on:)

Creates a DownloadResponsePublisher for this instance using the given ResponseSerializer and DispatchQueue.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishResponse<Serializer: ResponseSerializer, T>(using serializer: Serializer, on queue: DispatchQueue = .main) -> DownloadResponsePublisher<T>
    where Serializer.SerializedObject == T

Parameters

`serializer`	`ResponseSerializer` used to serialize the response `Data` from disk.
`queue`	`DispatchQueue` on which the `DownloadResponse` will be published.`.main` by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishResponse(using:on:)

Creates a DownloadResponsePublisher for this instance using the given DownloadResponseSerializerProtocol and DispatchQueue.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishResponse<Serializer: DownloadResponseSerializerProtocol, T>(using serializer: Serializer, on queue: DispatchQueue = .main) -> DownloadResponsePublisher<T>
    where Serializer.SerializedObject == T

Parameters

`serializer`	`DownloadResponseSerializer` used to serialize the response `Data` from disk.
`queue`	`DispatchQueue` on which the `DownloadResponse` will be published.`.main` by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishURL(queue:)

Creates a DownloadResponsePublisher for this instance and uses a URLResponseSerializer to serialize the response.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishURL(queue: DispatchQueue = .main) -> DownloadResponsePublisher<URL>

Parameters


                                queue

DispatchQueue on which the DownloadResponse will be published. .main by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishData(queue:preprocessor:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadResponsePublisher for this instance and uses a DataResponseSerializer to serialize the response.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishData(queue: DispatchQueue = .main,
                        preprocessor: any DataPreprocessor = DataResponseSerializer.defaultDataPreprocessor,
                        emptyResponseCodes: Set<Int> = DataResponseSerializer.defaultEmptyResponseCodes,
                        emptyRequestMethods: Set<HTTPMethod> = DataResponseSerializer.defaultEmptyRequestMethods) -> DownloadResponsePublisher<Data>

Parameters

`queue`	`DispatchQueue` on which the `DownloadResponse` will be published. `.main` by default.
`preprocessor`	`DataPreprocessor` which filters the `Data` before serialization. `PassthroughPreprocessor()` by default.
`emptyResponseCodes`	`Set<Int>` of HTTP status codes for which empty responses are allowed. `[204, 205]` by default.
`emptyRequestMethods`	`Set<HTTPMethod>` of `HTTPMethod`s for which empty responses are allowed, regardless of status code. `[.head]` by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishString(queue:preprocessor:encoding:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadResponsePublisher for this instance and uses a StringResponseSerializer to serialize the response.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishString(queue: DispatchQueue = .main,
                          preprocessor: any DataPreprocessor = StringResponseSerializer.defaultDataPreprocessor,
                          encoding: String.Encoding? = nil,
                          emptyResponseCodes: Set<Int> = StringResponseSerializer.defaultEmptyResponseCodes,
                          emptyRequestMethods: Set<HTTPMethod> = StringResponseSerializer.defaultEmptyRequestMethods) -> DownloadResponsePublisher<String>

Parameters

`queue`	`DispatchQueue` on which the `DataResponse` will be published. `.main` by default.
`preprocessor`	`DataPreprocessor` which filters the `Data` before serialization. `PassthroughPreprocessor()` by default.
`encoding`	`String.Encoding` to parse the response. `nil` by default, in which case the encoding will be determined by the server response, falling back to the default HTTP character set, `ISO-8859-1`.
`emptyResponseCodes`	`Set<Int>` of HTTP status codes for which empty responses are allowed. `[204, 205]` by default.
`emptyRequestMethods`	`Set<HTTPMethod>` of `HTTPMethod`s for which empty responses are allowed, regardless of status code. `[.head]` by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishDecodable(type:queue:preprocessor:decoder:emptyResponseCodes:emptyResponseMethods:)

Undocumented

Declaration

Swift

@_disfavoredOverload
public func publishDecodable<T: Decodable>(type: T.Type = T.self,
                                           queue: DispatchQueue = .main,
                                           preprocessor: any DataPreprocessor = DecodableResponseSerializer<T>.defaultDataPreprocessor,
                                           decoder: any DataDecoder = JSONDecoder(),
                                           emptyResponseCodes: Set<Int> = DecodableResponseSerializer<T>.defaultEmptyResponseCodes,
                                           emptyResponseMethods: Set<HTTPMethod> = DecodableResponseSerializer<T>.defaultEmptyRequestMethods) -> DownloadResponsePublisher<T>


                    
                    
                    publishDecodable(type:queue:preprocessor:decoder:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadResponsePublisher for this instance and uses a DecodableResponseSerializer to serialize the response.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishDecodable<T: Decodable>(type: T.Type = T.self,
                                           queue: DispatchQueue = .main,
                                           preprocessor: any DataPreprocessor = DecodableResponseSerializer<T>.defaultDataPreprocessor,
                                           decoder: any DataDecoder = JSONDecoder(),
                                           emptyResponseCodes: Set<Int> = DecodableResponseSerializer<T>.defaultEmptyResponseCodes,
                                           emptyRequestMethods: Set<HTTPMethod> = DecodableResponseSerializer<T>.defaultEmptyRequestMethods) -> DownloadResponsePublisher<T>

Parameters

`type`	`Decodable` type to which to decode response `Data`. Inferred from the context by default.
`queue`	`DispatchQueue` on which the `DataResponse` will be published. `.main` by default.
`preprocessor`	`DataPreprocessor` which filters the `Data` before serialization. `PassthroughPreprocessor()` by default.
`decoder`	`DataDecoder` instance used to decode response `Data`. `JSONDecoder()` by default.
`emptyResponseCodes`	`Set<Int>` of HTTP status codes for which empty responses are allowed. `[204, 205]` by default.
`emptyRequestMethods`	`Set<HTTPMethod>` of `HTTPMethod`s for which empty responses are allowed, regardless of status code. `[.head]` by default.

Return Value

The DownloadResponsePublisher.


                    
                    
                    publishUnserialized(on:)

Creates a DownloadResponsePublisher for this instance which does not serialize the response before publishing.

Declaration

Swift

@available(macOS 10.15, iOS 13, watchOS 6, tvOS 13, *)
public func publishUnserialized(on queue: DispatchQueue = .main) -> DownloadResponsePublisher<URL?>

Parameters


                                queue

DispatchQueue on which the DownloadResponse will be published. .main by default.

Return Value

The DownloadResponsePublisher.

DownloadTask


                    
                    
                    serializingData(automaticallyCancelling:dataPreprocessor:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadTask to await a Data value.

Declaration

Swift

public func serializingData(automaticallyCancelling shouldAutomaticallyCancel: Bool = true,
                            dataPreprocessor: any DataPreprocessor = DataResponseSerializer.defaultDataPreprocessor,
                            emptyResponseCodes: Set<Int> = DataResponseSerializer.defaultEmptyResponseCodes,
                            emptyRequestMethods: Set<HTTPMethod> = DataResponseSerializer.defaultEmptyRequestMethods) -> DownloadTask<Data>

Parameters

`shouldAutomaticallyCancel`	`Bool` determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to `DownloadTask`‘s async properties. `true` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before completion.
`emptyResponseCodes`	HTTP response codes for which empty responses are allowed. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.

Return Value

The DownloadTask.


                    
                    
                    serializingDecodable(_:automaticallyCancelling:dataPreprocessor:decoder:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadTask to await serialization of a Decodable value.

Note

This serializer reads the entire response into memory before parsing.

Declaration

Swift

public func serializingDecodable<Value: Decodable>(_ type: Value.Type = Value.self,
                                                   automaticallyCancelling shouldAutomaticallyCancel: Bool = true,
                                                   dataPreprocessor: any DataPreprocessor = DecodableResponseSerializer<Value>.defaultDataPreprocessor,
                                                   decoder: any DataDecoder = JSONDecoder(),
                                                   emptyResponseCodes: Set<Int> = DecodableResponseSerializer<Value>.defaultEmptyResponseCodes,
                                                   emptyRequestMethods: Set<HTTPMethod> = DecodableResponseSerializer<Value>.defaultEmptyRequestMethods) -> DownloadTask<Value>

Parameters

`type`	`Decodable` type to decode from response data.
`shouldAutomaticallyCancel`	`Bool` determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to `DownloadTask`‘s async properties. `true` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the serializer. `PassthroughPreprocessor()` by default.
`decoder`	`DataDecoder` to use to decode the response. `JSONDecoder()` by default.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.

Return Value

The DownloadTask.


                    
                    
                    serializingDownloadedFileURL(automaticallyCancelling:)

Creates a DownloadTask to await serialization of the downloaded file’s URL on disk.

Declaration

Swift

public func serializingDownloadedFileURL(automaticallyCancelling shouldAutomaticallyCancel: Bool = true) -> DownloadTask<URL>

Parameters


                                shouldAutomaticallyCancel

Bool determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to DownloadTask‘s async properties. true by default.

Return Value

The DownloadTask.


                    
                    
                    serializingString(automaticallyCancelling:dataPreprocessor:encoding:emptyResponseCodes:emptyRequestMethods:)

Creates a DownloadTask to await serialization of a String value.

Declaration

Swift

public func serializingString(automaticallyCancelling shouldAutomaticallyCancel: Bool = true,
                              dataPreprocessor: any DataPreprocessor = StringResponseSerializer.defaultDataPreprocessor,
                              encoding: String.Encoding? = nil,
                              emptyResponseCodes: Set<Int> = StringResponseSerializer.defaultEmptyResponseCodes,
                              emptyRequestMethods: Set<HTTPMethod> = StringResponseSerializer.defaultEmptyRequestMethods) -> DownloadTask<String>

Parameters

`shouldAutomaticallyCancel`	`Bool` determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to `DownloadTask`‘s async properties. `true` by default.
`dataPreprocessor`	`DataPreprocessor` which processes the received `Data` before calling the serializer. `PassthroughPreprocessor()` by default.
`encoding`	`String.Encoding` to use during serialization. Defaults to `nil`, in which case the encoding will be determined from the server response, falling back to the default HTTP character set, `ISO-8859-1`.
`emptyResponseCodes`	HTTP status codes for which empty responses are always valid. `[204, 205]` by default.
`emptyRequestMethods`	`HTTPMethod`s for which empty responses are always valid. `[.head]` by default.

Return Value

The DownloadTask.


                    
                    
                    serializingDownload(using:automaticallyCancelling:)

Creates a DownloadTask to await serialization using the provided ResponseSerializer instance.

Declaration

Swift

public func serializingDownload<Serializer: ResponseSerializer>(using serializer: Serializer,
                                                                automaticallyCancelling shouldAutomaticallyCancel: Bool = true)
    -> DownloadTask<Serializer.SerializedObject>

Parameters

`serializer`	`ResponseSerializer` responsible for serializing the request, response, and data.
`shouldAutomaticallyCancel`	`Bool` determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to `DownloadTask`‘s async properties. `true` by default.

Return Value

The DownloadTask.


                    
                    
                    serializingDownload(using:automaticallyCancelling:)

Creates a DownloadTask to await serialization using the provided DownloadResponseSerializerProtocol instance.

Declaration

Swift

public func serializingDownload<Serializer: DownloadResponseSerializerProtocol>(using serializer: Serializer,
                                                                                automaticallyCancelling shouldAutomaticallyCancel: Bool = true)
    -> DownloadTask<Serializer.SerializedObject>

Parameters

`serializer`	`DownloadResponseSerializerProtocol` responsible for serializing the request, response, and data.
`shouldAutomaticallyCancel`	`Bool` determining whether or not the request should be cancelled when the enclosing async context is cancelled. Only applies to `DownloadTask`‘s async properties. `true` by default.

Return Value

The DownloadTask.


                    
                    
                    Validation

A closure used to validate a request that takes a URL request, a URL response, a temporary URL and a destination URL, and returns whether the request was valid.

Declaration

Swift

public typealias Validation = (_ request: URLRequest?,
                               _ response: HTTPURLResponse,
                               _ fileURL: URL?)
    -> ValidationResult


                    
                    
                    validate(statusCode:)

Validates that the response has a status code in the specified sequence.

If validation fails, subsequent calls to response handlers will have an associated error.

Declaration

Swift

@discardableResult
public func validate<S>(statusCode acceptableStatusCodes: S) -> Self where S : Sequence, S.Element == Int

Parameters


                                acceptableStatusCodes

Sequence of acceptable response status codes.

Return Value

The instance.


                    
                    
                    validate(contentType:)

Validates that the response has a Content-Type in the specified sequence.

If validation fails, subsequent calls to response handlers will have an associated error.

Declaration

Swift

@discardableResult
public func validate<S>(contentType acceptableContentTypes: @escaping @autoclosure () -> S) -> Self where S : Sequence, S.Element == String

Parameters


                                contentType

The acceptable content types, which may specify wildcard types and/or subtypes.

Return Value

The request.

validate()
Validates that the response has a status code in the default acceptable range of 200…299, and that the content type matches any specified in the Accept HTTP header field.

If validation fails, subsequent calls to response handlers will have an associated error.
Declaration
Swift

@discardableResult public func validate() -> Self
Return Value

The request.