Get JSON result with GET request and parameters with Alamofire - ios

Question

This is my url String with paramaters.
http://api.room2shop.com/api/product/GetProducts?categoryId=22&filter=2&pageNumber=1 through which I am getting my JSON data. I have AFWrapper.swift file in which I have defined function for GETrequest.
import UIKit
import Alamofire
import SwiftyJSON
class AFWrapper: NSObject {
class func requestGETURL(strURL: String, params : [String : AnyObject]?, success:(JSON) -> Void, failure:(NSError) -> Void) {
Alamofire.request(.GET, strURL, parameters: params, encoding: ParameterEncoding.JSON).responseJSON { (responseObject) -> Void in
print(responseObject)
if responseObject.result.isSuccess {
let resJson = JSON(responseObject.result.value!)
success(resJson)
}
if responseObject.result.isFailure {
let error : NSError = responseObject.result.error!
failure(error)
}
}
}
}
Now I am calling this function in my ViewController.swift file.
let strURL = "http://api.room2shop.com/api/product/GetProducts"
let param = ["categoryId": "22", "filter": "2", "pageNumber": "1"]
AFWrapper.requestGETURL(strURL, params: param, success: {
(JSONResponse) -> Void in
if let resData = JSONResponse["ProductList"].arrayObject {
for item in resData {
self.TableData.append(datastruct(add: item as! NSDictionary))
}
do
{
try self.read()
}
catch
{
}
self.do_table_refresh()
}
}) {
(error) -> Void in
print(error)
}
but it is not giving me any response and giving me this error.
FAILURE: Error Domain=NSURLErrorDomain Code=-1017 "cannot parse
response"
UserInfo={NSErrorFailingURLStringKey=http://api.room2shop.com/api/product/GetProducts,
_kCFStreamErrorCodeKey=-1, NSErrorFailingURLKey=http://api.room2shop.com/api/product/GetProducts,
NSLocalizedDescription=cannot parse response,
_kCFStreamErrorDomainKey=4, NSUnderlyingError=0x78ecf180 {Error Domain=kCFErrorDomainCFNetwork Code=-1017 "(null)"
UserInfo={_kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-1}}}
Error Domain=NSURLErrorDomain Code=-1017 "cannot parse response"
UserInfo={NSErrorFailingURLStringKey=http://api.room2shop.com/api/product/GetProducts,
_kCFStreamErrorCodeKey=-1, NSErrorFailingURLKey=http://api.room2shop.com/api/product/GetProducts,
NSLocalizedDescription=cannot parse response,
_kCFStreamErrorDomainKey=4, NSUnderlyingError=0x78ecf180 {Error Domain=kCFErrorDomainCFNetwork Code=-1017 "(null)"
UserInfo={_kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-1}}}
Can anyone tell me what am I doing wrong? I have seached this link but not getting what is wrong. URL Encode Alamofire GET params with SwiftyJSON

Answer 1

i think you should remove the parameter of "encoding: ParameterEncoding.JSON",like this:
Alamofire.request(.GET, strURL, parameters: params).responseJSON { (responseObject) -> Void in
print(responseObject)
if responseObject.result.isSuccess {
let resJson = JSON(responseObject.result.value!)
success(resJson)
}
if responseObject.result.isFailure {
let error : NSError = responseObject.result.error!
failure(error)
}
}

Answer 2

Use this code. It is retrieving response correctly parsed in JSON.
Using Alamofire v3.0+
Alamofire.request(.GET, "http://api.room2shop.com/api/product/GetProducts?categoryId=22&filter=2&pageNumber=1")
.responseJSON { response in
debugPrint(response)
switch response.result {
case .Success(let JSON):
print(JSON)
case .Failure(let error):
print(error)
}
}
EDIT:
For accepting Parameters with GET Type Service:
Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
.responseData { response in
print(response.request)
print(response.response)
print(response.result)
}
In this case try to not manipulate your URL String and send all parameters in terms of Dictionary like this.

Answer 3

Your requestGETURL should look like that
func requestGETURL(strURL: String, params: [String:String]?, success: (AnyObject?) -> Void, failure: (NSError) -> Void) {
Alamofire.request(.GET, strURL, parameters: params).responseJSON {
(responseObject) -> Void in
print(responseObject)
if responseObject.result.isSuccess {
let resJson = JSON(responseObject.result.value!)
success(resJson)
}
if responseObject.result.isFailure {
let error: NSError = responseObject.result.error!
failure(error)
}
}
}
Your problem was in params it should be [String:String] dictionary. Also you don't have to declare encoding encoding:ParameterEncoding.JSON.
Hope it help you