RetryNetworkService

public final class RetryNetworkService : NetworkService

RetryNetworkService can request resource. When a request fails with a given condtion it can retry the request after a given time interval. The count of retry attemps can be configured as well.

Seealso

NetworkService

  • Creates an instance of RetryNetworkService

    Declaration

    Swift

    public init(networkService: NetworkService, numberOfRetries: Int,
            idleTimeInterval: TimeInterval, shouldRetry: @escaping (NetworkError) -> Bool,
            dispatchRetry: @escaping (_ deadline: DispatchTime, _ execute: @escaping () -> Void ) -> Void = { deadline, execute in
        DispatchQueue.global(qos: .utility).asyncAfter(deadline: deadline, execute: execute)
    })

    Parameters

    networkService

    a networkservice
    numberOfRetries

    the number of retrys before final error
    idleTimeInterval

    time between error and retry
    shouldRetry

    closure which evaluated if error should be retry
    dispatchRetry

    closure where to dispatch the waiting

  • Fetches a resource asynchronously from remote location. Execution of the requests starts immediately. Execution happens on no specific queue. It dependes on the network access which queue is used. Once execution is finished either the completion block or the error block gets called. You decide on which queue these blocks get executed.

    Example:

    let networkService: NetworkService = //
let resource: Resource<String> = //

networkService.request(queue: .main, resource: resource, onCompletionWithResponse: { htmlText, response in
   print(htmlText, response)
}, onError: { error in
   // Handle errors
})

    Declaration

    Swift

    @discardableResult
public func request<Result>(queue: DispatchQueue, resource: Resource<Result>, onCompletionWithResponse: @escaping (Result, HTTPURLResponse) -> Void,
                    onError: @escaping (NetworkError) -> Void) -> NetworkTask

    Parameters

    queue

    The DispatchQueue to execute the completion and error block on.
    resource

    The resource you want to fetch.
    onCompletionWithResponse

    Callback which gets called when fetching and transforming into model succeeds.
    onError

    Callback which gets called when fetching or transforming fails.

    Return Value

    a running network task