[英]How to use Alamofire 4 SessionManager?
I was using Alamofire 3.4 in Swift 2.3 and I need to update my code to Swift 3 and Alamofire 4. I was using Alamofire's Manager to do a POST in a url.我在 Swift 2.3 中使用 Alamofire 3.4,我需要将我的代码更新为 Swift 3 和 Alamofire 4。我使用 Alamofire 的管理器在 url 中执行 POST。 I read the documentation about SessionManager and I understand that the request uses the method .GET.我阅读了有关 SessionManager 的文档,我知道该请求使用了 .GET 方法。
I was using Manager .Response() to get the callback from the request, now that's changed in SessionManager.我正在使用 Manager .Response() 从请求中获取回调,现在它在 SessionManager 中发生了变化。
How do I make a POST method using SessionManager?如何使用 SessionManager 制作 POST 方法? And how do I get the response from the request?以及如何从请求中获得响应?
This is my original code:这是我的原始代码:
import UIKit
import AEXML
import Alamofire
class Request: NSObject {
internal typealias RequestCompletion = (statusCode: Int?, error:NSError?) -> ()
private var completionBlock: RequestCompletion!
var serverTrustPolicy: ServerTrustPolicy!
var serverTrustPolicies: [String: ServerTrustPolicy]!
var afManager: Manager!
func buildBdRequest(ip : String, serviceStr : String, completionBlock:RequestCompletion){
let url = getURL(ip, service: serviceStr)
configureAlamoFireSSLPinningWithCertificateData()
makeAlamofireRequest(url)
self.completionBlock = completionBlock
}
func makeAlamofireRequest(url : String){
self.afManager.request(.POST, url)
.validate(statusCode: 200..<300)
.response { request, response, data, error in
print("data - > \n \(data.debugDescription) \n")
print("response - >\n \(response.debugDescription) \n")
print("error - > \n \(error.debugDescription) \n")
var statusCode = 0
if response != nil {
statusCode = (response?.statusCode)!
}
self.completionBlock(statusCode: statusCode, error: error)
}
}
private func getURL(ip : String, service: String) -> String{
return ip + service;
}
func configureAlamoFireSSLPinningWithCertificateData() {
self.serverTrustPolicies = [ :
// "github.com": self.serverTrustPolicy!
]
self.afManager = Manager(
configuration: NSURLSessionConfiguration.defaultSessionConfiguration()
)
}
}
I've migrated your code to Swift 3 and Alamofire 4 and here it's a result : 我已将您的代码迁移到Swift 3和Alamofire 4,这是一个结果:
internal typealias RequestCompletion = (Int?, Error?) -> ()?
private var completionBlock: RequestCompletion!
var afManager : SessionManager!
func makeAlamofireRequest(url :String){
let configuration = URLSessionConfiguration.default
afManager = Alamofire.SessionManager(configuration: configuration)
afManager.request(url, method: .post).validate().responseJSON {
response in
switch (response.result) {
case .success:
print("data - > \n \(response.data?.debugDescription) \n")
print("response - >\n \(response.response?.debugDescription) \n")
var statusCode = 0
if let unwrappedResponse = response.response {
let statusCode = unwrappedResponse.statusCode
}
self.completionBlock(statusCode, nil)
break
case .failure(let error):
print("error - > \n \(error.localizedDescription) \n")
let statusCode = response.response?.statusCode
self.completionBlock?(statusCode, error)
break
}
}
}
Some notes about code: 关于代码的一些注释:
In Alamofire 4.0 you don't need to manually validate between codes 200..300. 在Alamofire 4.0中,您无需在代码200..300之间手动验证。 validate()
method do it automatically. validate()
方法自动完成。
Documentation : 文件 :
Automatically validates status code within 200...299 range, and that the Content-Type header of the response matches the Accept header of the request if one is provided. 自动验证200 ... 299范围内的状态代码,并且响应的Content-Type标头与请求的Accept标头匹配(如果提供了一个)。
You can use response
parameter in responseJSON
method. 您可以在responseJSON
方法中使用response
参数。 It contains all information that you need in your code. 它包含代码中所需的所有信息。
About request
method 关于request
方法
open func request(_ url: URLConvertible, method: HTTPMethod = .get, parameters: Parameters? = nil, encoding: ParameterEncoding = URLEncoding.default, headers: HTTPHeaders? = nil) -> DataRequest
All parameters except URL, are initially nil or has a default value. 除URL之外的所有参数最初都是nil或具有默认值。 So it's no problem to add parameters or headers to your request. 因此,为您的请求添加参数或标题没有问题。
Hope it helps you 希望它能帮到你
class FV_APIManager: NSObject class FV_APIManager:NSObject
{ {
//MARK:- POST APIs
class func postAPI(_ apiURl:String, parameters:NSDictionary, completionHandler: @escaping (_ Result:AnyObject?, _ Error:NSError?) -> Void)
{
var strURL:String = FV_API.appBaseURL
if((apiURl as NSString).length > 0)
{
strURL = strURL + "/" + apiURl
}
_ = ["Content-Type": "application/x-www-form-urlencoded"]
print("URL -\(strURL),parameters - \(parameters)")
let api = Alamofire.request(strURL,method: .post, parameters: parameters as? [String : AnyObject], encoding: URLEncoding.default)
// ParameterEncoding.URL
api.responseJSON
{
response -> Void in
print(response)
if let JSON = response.result.value
{
print("JSON: \(JSON)")
completionHandler(JSON as AnyObject?, nil)
}
else if let ERROR = response.result.error
{
print("Error: \(ERROR)")
completionHandler(nil, ERROR as NSError?)
}
else
{
completionHandler(nil, NSError(domain: "error", code: 117, userInfo: nil))
}
}
}
Hope this will helpful for you. 希望这对你有所帮助。
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