Alamofire 5.2 cannot convert value of type about xmlmapper HOT 9 CLOSED

@PatrickB100 since you want to map your response XML to an array directly you need to use the responseXMLArray(queue:keyPath:dataPreprocessor:encoding:emptyResponseCodes:emptyRequestMethods:options:completionHandler:)
function instead of responseXMLObject(queue:keyPath:dataPreprocessor:mapToObject:encoding:emptyResponseCodes:emptyRequestMethods:options:completionHandler:) that you currently using.

With that modification your code will pass compilation:

AF.request(RequestUrl, method: .post, parameters: getallpersonsquery.toXML(), encoding: XMLEncoding.default, headers: headers)
    .redirect(using: redirector)
    .responseXMLArray { (dataResponse: DataResponse<[AllCnannelModel], AFError>) in

    }

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@gcharita thanks! that made me some progress. Now i'm getting the following return: Cannot use optional chaining on non-optional value of type '[CDCatalog]'
and Value of type '[CDCatalog]' has no member 'cds'

find the code below. Do you have any suggestions?

thanks in advance,

Patrick

`class CDCatalog: XMLMappable {
var nodeName: String!

        var cds: [CD]?

        required init?(map: XMLMap) {}

        func mapping(map: XMLMap) {
            cds <- map["ROW"]
        }
    }

    class CD: XMLMappable {
        var nodeName: String!

        var title: String!


        required init?(map: XMLMap) {}

        func mapping(map: XMLMap) {
            title <- map["NAME"]
        }
    }
    
    AF.request(RequestUrl, method: .post, parameters: updateperson.toXML(), encoding: XMLEncoding.default)
        .redirect(using: redirector)
        .responseXMLArray { (response: DataResponse<[CDCatalog], AFError>) in
            
            
            switch response.result {
            
            case .success(let value):
                print("AF-Success")
                
                print(value?.cds?.first.title ?? "nil")
                
                


            case .failure(let error):
                print("AF-Error")
                print(error)

            }
        }`

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@PatrickB100 well, the error is obvious. You are trying to access cds property of CDCatalog, but your value is of type [CDCatalog] (array of CDCatalog objects).

It looks like you are trying to run the README example. If that's the case then you were correct before about using responseXMLObject(queue:keyPath:dataPreprocessor:mapToObject:encoding:emptyResponseCodes:emptyRequestMethods:options:completionHandler:) function, but you need to change the type to CDCatalog instead of [CDCatalog]:

AF.request(RequestUrl, method: .post, parameters: updateperson.toXML(), encoding: XMLEncoding.default)
    .redirect(using: redirector)
    .responseXMLObject { (response: DataResponse<CDCatalog, AFError>) in
        switch response.result {
        case .success(let value):
            print("AF-Success")
            print(value.cds?.first?.title ?? "nil")
        case .failure(let error):
            print("AF-Error")
            print(error)
        }
    }

Generally, which of the 2 function you have to choose depends on the XML that your API will respond to you.

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@gcharita thanks for your support! i'm indeed following the readme example.

i'm getting a reponse in the debug area where it states the following:
*Result]: success(testApp.PersonDetailsView.(unknown context at $102f51890).(unknown context at $102f519cc).CDCatalog)

the returned body seems to be correct:

can this issue be related to the fact that there is an xml version encoding utf8 header in front of the response?

thanks,

Patrick

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@PatrickB100 this response has nothing to do with the README example. You need to create your own model. The one that matches with your response XML.

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@PatrickB100 a possible model that you can use to map your XML is this:

class Result: XMLMappable {
    var nodeName: String!

    var error: String?
    var rowset: Rowset?

    required init?(map: XMLMap) {}

    func mapping(map: XMLMap) {
        error <- map.attributes["error"]
        rowset <- map["ROWSET"]
    }
}

class Rowset: XMLMappable {
    var nodeName: String!

    var rows: [Row]?

    required init?(map: XMLMap) {}

    func mapping(map: XMLMap) {
        rows <- map["ROW"]
    }
}

class Row: XMLMappable {
    var nodeName: String!

    var name: String?
    var prefix: String?
    var firstName: String?
    var homeAddress: String?
    var homeZip: String?
    var homeCity: String?

    required init?(map: XMLMap) {}

    func mapping(map: XMLMap) {
        name <- map["NAME"]
        prefix <- map["PREFIX"]
        firstName <- map["FIRSTNAME"]
        homeAddress <- map["HOMEADDRESS"]
        homeZip <- map["HOMEZIP"]
        homeCity <- map["HOMECITY"]
    }
}

Calling your API with Alamofire may look like this:

AF.request(RequestUrl, method: .post, parameters: updateperson.toXML(), encoding: XMLEncoding.default)
    .redirect(using: redirector)
    .responseXMLObject { (response: DataResponse<Result, AFError>) in
        switch response.result {
        case .success(let value):
            print("AF-Success")
            print(value.rowset?.rows?.first?.name ?? "nil")
        case .failure(let error):
            print("AF-Error")
            print(error)
        }
    }

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@gcharita Thank you very much! it's working now. Do you know if there is a README on how to put reponse data from XMLMapper into an UITableView?

Patrick

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@PatrickB100 you need to use rows array to do that and follow Apple's official Filling a Table with Data documentation. You can also find other great posts online that match your particular case.

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Closing this since question have been answered and there is no issue.

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