posting nested JSON in Swift with Alamofire - json

Question

Good day I am currently struggling to post data to my backend I am new to swift development please help
The API expects me to send following structure:
{
"oid": "string",
"businessKey": "string",
"refNumber": "string",
"name": "string",
"cost": "string",
"clientOid": "string",
"vehicleOid": "string",
"driverOid": "string",
"from": {
"oid": "string",
"businessKey": "string",
"coordinates": [
"string"
],
"address": "string"
},
"to": {
"oid": "string",
"businessKey": "string",
"coordinates": [
"string"
],
"address": "string"
},
"when": "2018-04-09T10:03:01.156Z",
"atp": "2018-04-09T10:03:01.156Z",
"eta": "2018-04-09T10:03:01.156Z",
"ata": "2018-04-09T10:03:01.156Z",
"droplets": [
{
"oid": "string",
"businessKey": "string",
"itemOid": "string",
"description": "string",
"notes": "string"
}
],
"serviceRating": 0,
"notes": "string"
}
This is how is my code:
func createDrop(oid: String, token: String){
let url = getCar.url
let token = "Bearer " + token
var request = URLRequest(url: URL(string: "\(url)drops")!)
request.httpMethod = "POST"
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue( token, forHTTPHeaderField: "Authorization")
var parameters: Dictionary<String, Any> = [
"name": "Thami",
"notes": "New",
"cost": "totalPrice",
"clientOid": "clientOi",
"vehicleOid": "vehicleOi",
"driverOid": "driverO",
"when": "dropTime",
"atp": "dropTime",
"eta": "dropTime",
"ata": "dropTime",
"from":[
"coordinates": [
"-26.002483",
"28.099503"
],
"address": "his.distanceInfo.getPickUp()",
],
"to":[
"coordinates": [
"-26.002483",
"28.099503"
],
"address": "this.distanceInfo.getDestination()",
],
"droplets":[
"itemOid": "575ae6bd30bc5d5017477143",
"notes": "new"
]
]
do {
request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: [])
print("serilizing json")
} catch {
print("JSON serialization failed: \(error)")
}
print(parameters)
Alamofire.request(request).responseJSON {(response) in
debugPrint(response)
if response.response?.statusCode == 200 {
print ("pass")
let dropJSON : JSON = JSON(response.result.value!)
print(dropJSON)
}else{
print ("fail gfgdfds")
let dErrorJSON : JSON = JSON(response.result.error!)
print(dErrorJSON)
}
}
}
This is the error i am getting:
[Result]: FAILURE: responseSerializationFailed(Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}))
how can I format my object to perform this post

Answer 1

Try to encode the parameters in your request like
Alamofire.request("https://httpbin.org/post", method: .post, parameters: parameters, encoding: JSONEncoding.default)
Check the docs to get more encoding information
https://github.com/Alamofire/Alamofire/blob/master/Documentation/Usage.md#json-encoding