How do I use JSON arrays with Alamofire parameters?

Question

I'm having a bit of trouble structuring my parameters so that our server API would be able to read it as valid JSON.

Alamofire uses parameters like this in swift language

let parameters : [String: AnyObject] =
[
    "string": str
    "params": HOW I INSERT A VALID JSON ARRAY HERE
]

The problem is that AnyObject does not seem to accept JSON so how would I send / create a structure like this with swift?

{
"string": str, "params" : [
    {
        "param1" : "something",
        "param2" : 1,
        "param3" : 2,
        "param" : false
    },
    {
        "param1" : "something",
        "param2" : 1,
        "param3" : 2,
        "param" : false
    }]
}

What you're calling a "JSON array" here is just an array of dictionaries. It's not JSON until Alamofire encodes it into JSON for the request. — mattt
– mattt, Commented May 22, 2015 at 18:17

Lior Pollak · Accepted Answer · 2015-05-22 10:36:18Z

5

Taken from Alamofire's GitHub page:

let parameters = [
    "foo": [1,2,3],
"bar": [
    "baz": "qux"
]
]

Alamofire.request(.POST, "http://httpbin.org/post", parameters: parameters, encoding: .JSON)
// HTTP body: {"foo": [1, 2, 3], "bar": {"baz": "qux"}}

EDIT: And from your example:

let parameters = [
    "string": "str",
"params": [[
    "param1" : "something",
    "param2" : 1,
    "param3" : 2,
    "param" : false
],[
    "param1" : "something",
    "param2" : 1,
    "param3" : 2,
    "param" : false
]
]
]

edited May 22, 2015 at 10:36

answered May 22, 2015 at 10:25

Lior Pollak

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3 Comments

Miika Pakarinen Over a year ago

This does not exactly answer my question. It's not like i'm going to hard code the JSON into the parameters. Bar in that example is also a Dictionary that AnyObject does accept, not a JSON array.

Miika Pakarinen Over a year ago

For the edit: Correct, sort of but I still need to insert the "params" as an object, not a hard coded structure.

mattt Over a year ago

@MiikaPakarinen Whether the value is hard-coded or constructed in some other way is irrelevant.

Miika Pakarinen · Accepted Answer · 2015-05-22 11:08:25Z

1

Solved this myself. I can just do

    parameters =
    [
        "params": array
    ]

Where array is Dictionary (String, AnyObject). The problem I initially had with this solution was that you can't insert booleans into this kind of dictionary, they will just be converted into integers. But apparently alamofire JSON encoding (I think) sends them as true/false values nevertheless.

answered May 22, 2015 at 11:08

Miika Pakarinen

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Comments

Nithin Haridas · Accepted Answer · 2017-04-24 13:05:32Z

In case, there is a need to pass array directly as a parameter for a alamofire request, the following method worked for me.

source: https://github.com/Alamofire/Alamofire/issues/1508

let headers = NetworkManager.sharedInstance.headers
var urlRequest = URLRequest(url: URL(string: (ServerURL + Api))!)
urlRequest.httpMethod = "post"
urlRequest.allHTTPHeaderFields = headers
let jsonArrayencoding = JSONDocumentArrayEncoding(array: documents)
let jsonAryEncodedRequest = try? jsonArrayencoding.encode(urlRequest, with: nil)

    var request: Alamofire.DataRequest? = customAlamofireManager.request(jsonAryEncodedRequest!)
    request?.validate{request, response, data in
        return .success
        }
        .responseJSON {

Fuping · Accepted Answer · 2015-08-20 12:32:39Z

0

You need to create a NSArray object for array parameters.

var yourParameters = [
  "String": "a string",
  "Int": 1,
  "Array": NSArray(
    array: [
        "a", "b", "c"
    ])
]

answered Aug 20, 2015 at 12:32

Fuping

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Comments

Rinku · Accepted Answer · 2016-05-03 08:24:21Z

0

if you are using SwiftyJSON, you can write like this

let array = ["2010-12-13T5:03:20","2010-12-13T5:03:20"]
 let paramsJSON = JSON(array)
 var arrString = paramsJSON.rawString(NSUTF8StringEncoding)

answered May 3, 2016 at 8:24

Rinku

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Comments

idris yıldız · Accepted Answer · 2016-06-14 17:26:08Z

0

Swift 2.2 and using SwiftyJSON.swift
You can use like this.

    var arrayList : [String: AnyObject]//one item of array

    var list: [JSON] = []//data array 

    for i in 0..<10//loop if you need
    { 

        arrayList = [
            "param1":"",
            "param1":"",
            "param2":["","",""]
        ]

        list.append(JSON(arrayList))//append to your list

    }


    //params
    let params: [String : AnyObject]=[

        "Id":"3456291",
        "List":"\(list)"//set
    ]

edited Jun 14, 2016 at 17:26

answered Jun 9, 2016 at 8:49

idris yıldız

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Comments

Milad Moetamedi Nia · Accepted Answer · 2020-04-21 18:15:38Z

0

Using Swift 5 You can use like this.

  var authParams:[String:Any] = [:]

  var authParamsObject:[String:Any] = [:]


    authParamsObject["is_urgent"] = data_any
    authParamsObject["body"] = data_any

  authParams = ["note_set" : authParamsObject]

Json Result :

{
  "note_set":
    {
      "is_urgent": true,
      "body": "string"
    }
}

edited Apr 21, 2020 at 18:15

answered Dec 23, 2019 at 14:51

Milad Moetamedi Nia

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1 Comment

Amjad Khan Over a year ago

Not getting the output like that comes with [] bracket

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