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In my project I want to convert Json String from server to Array but Unable to convert, But when I hard code(Directly gave the particular json string) the json string means that will be convert. Please help me to find the issue..

Here I gave the code what i am tried.

var params = NSMutableDictionary() params = [ "inspectionLogId": inspectionLogIdStr ] let manager = AFHTTPSessionManager() manager.requestSerializer = AFJSONRequestSerializer() manager.responseSerializer = AFHTTPResponseSerializer() manager.responseSerializer.acceptableContentTypes = NSSet(array: ["text/plain", "text/html", "application/json"]) as Set<NSObject> as Set<NSObject>! as! Set<String>? manager.requestSerializer.setValue("", forHTTPHeaderField: "apptoken") manager.requestSerializer.setValue(strAppToken, forHTTPHeaderField: "token") let urlString:NSString = NSString(format: "%@%@", ApiConstantFile().baseUrlProperty,ApiConstantFile().getTemplateDataUrl) print(urlString) manager.get(urlString as String, parameters: params, progress: nil, success: { (operation, responseObject) in self.stopAnimation() let jsonstring = String(data: responseObject! as! Data, encoding: String.Encoding.utf8) print("jsonstring is:, \(jsonstring!)") let data = jsonstring!.data(using: .utf8)! print(data) do { if (try JSONSerialization.jsonObject(with: data, options : .allowFragments) as? [Dictionary<String,Any>]) != nil { let jsonArray = try JSONSerialization.jsonObject(with: data, options : .allowFragments) as! [Dictionary<String,Any>] print(jsonArray) } else { print("bad json") } } catch { print(error) } }, failure: { (operation, error) in self.stopAnimation() print(error) self.alert(message: error.localizedDescription) })

when I print the json string means they show to string:

"[{\"propertyId\":\"1\",\"inspectionTemplateId\":1118,\"value\":[{\"widgetControllerId\":141,\"value\":\"Flood Summary Name\"},{\"widgetControllerId\":142,\"value\":\"Did the property flood?\"},{\"widgetControllerId\":143,\"value\":\"no\"}]}]"

But when I directly gives the string means it will convert to array.

let jsonstring = "[{\"propertyId\":\"1\",\"inspectionTemplateId\":1118,\"value\":[{\"widgetControllerId\":141,\"value\":\"Flood Summary Name\"},{\"widgetControllerId\":142,\"value\":\"Did the property flood?\"},{\"widgetControllerId\":143,\"value\":\"no\"}]}]"
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  • from where you're getting the responseObject ? Commented Jan 29, 2018 at 9:27
  • Why duplicate? stackoverflow.com/questions/48495999/… ? As suggested in the other question by @vadian, could your give us the value of data? Something like print("data: \(data as NSData)")? There could be hidden value for instance (invisible char) Commented Jan 29, 2018 at 9:27
  • This is not duplicate, this is differ from that. Don't make duplicate please.@Larme Commented Jan 29, 2018 at 9:29
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    Why don't you take advantage of AFNetworking and use manager.responseSerializer = AFJSONResponseSerializer() instead of manager.responseSerializer = AFHTTPResponseSerializer()? Commented Jan 29, 2018 at 9:41
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    Not related, but NSSet(array: ["text/plain", "text/html", "application/json"]) as Set<NSObject> as Set<NSObject>! as! Set<String>? is horrendous. Why not simply Set(["text/plain", "text/html", "application/json"])? And why NSMutableDictionary for an immutable constant? Commented Jan 29, 2018 at 9:45

1 Answer 1

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Just replace AFHTTPResponseSerializer with AFJSONResponseSerializer like this: 

var params = NSMutableDictionary() params = [ "inspectionLogId": inspectionLogIdStr ] let manager = AFHTTPSessionManager() manager.requestSerializer = AFJSONRequestSerializer() manager.responseSerializer = AFJSONResponseSerializer() manager.requestSerializer.setValue("", forHTTPHeaderField: "apptoken") manager.requestSerializer.setValue(strAppToken, forHTTPHeaderField: "token") let urlString:NSString = NSString(format: "%@%@", ApiConstantFile().baseUrlProperty,ApiConstantFile().getTemplateDataUrl) print(urlString) manager.get(urlString as String, parameters: params, progress: nil, success: { (operation, responseObject) in self.stopAnimation() print(responseObject) }, failure: { (operation, error) in self.stopAnimation() print(error) self.alert(message: error.localizedDescription) })
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