How to successfully pass string array as parameter

问题:

I have an endpoint that accepts a string array as parameter but I can't get it working with alamofire. I test my endpoint with postman and it works fine, even in the browser, but with alamofire it fails and just returns the whole thing (as if I didn't put any parameter).

func getQuotes(String url){

    //THIS CALL IS NOT WORKING. PARAMETERS ARE NOT SENT PROPERLY - FIX

    let stringArray : [String] = ["4250_XSAU", "Test"]
    let getQuoteParameters : Parameters = [
        //"internal_symbols": stockInternalSymbols
        "internal_symbols" : stringArray
    ]

    print("attempting to get quotes on utility queue")

    Alamofire.request(url, parameters: getQuoteParameters).responseJSON{ response in
        print(response)

       /* if (response.result.value != nil){
            let jsonResponse = JSON(response.result.value!)

           print(jsonResponse) 
        }
       */
    }
}

Am I doing something wrong? When I go to url + "?internal_symbols=["4250_XSAU","Test"] on my browser, or postman, it works just fine.

I also tried setting my "getQuoteParamaters" variable as

let getQuoteParameters : Parameters = [
        "internal_symbols" : ["4250_XSAU", "Test"]
    ]

but it doesn't work neither... it should be the same thing.

Just to clarify, this request ignores completely my parameters, when it should send the array to my backend.

回答1:

You can simply pass your string array in converting it into a JSON format.Like in the sample code given below:

  var request = URLRequest(url: url)
  request.httpMethod = "POST"
  request.setValue("application/json", forHTTPHeaderField: "Content-Type")

  let values = ["06786984572365", "06644857247565", "06649998782227"]

  request.httpBody = try! JSONSerialization.data(withJSONObject: values)

 Alamofire.request(request)
.responseJSON { response in
    // do whatever you want here
    switch response.result {
    case .failure(let error):
        print(error)

        if let data = response.data, let responseString = String(data: data, encoding: .utf8) {
            print(responseString)
        }
    case .success(let responseObject):
        print(responseObject)
    }
  }

回答2:

Try by add encoding standard in your request, like JSONEncoding.default

func getQuotes(String url){

//THIS CALL IS NOT WORKING. PARAMETERS ARE NOT SENT PROPERLY - FIX

let stringArray : [String] = ["4250_XSAU", "Test"]
let getQuoteParameters : Parameters = [
    //"internal_symbols": stockInternalSymbols
    "internal_symbols" : stringArray
]

print("attempting to get quotes on utility queue")

Alamofire.request(url, method: .post, parameters: getQuoteParameters, encoding: JSONEncoding.default).responseJSON{ response in
    print(response)

   /* if (response.result.value != nil){
        let jsonResponse = JSON(response.result.value!)

       print(jsonResponse) 
    }
   */
}

Thanks.

回答3:

My solution in Swift 3:

let text: [String] = ["location.branches.longitude", "location.branches.latitude"]

let params: Parameters = [
  "_source": text
]