How to send a JSON body in a get request with Alamofire - ios

Question

I'm facing a problem since 3 weeks now, I'm using an API pretty particular which need a JSON object as body in a GET request. And I think that it's the main problem
I tried to custom my encoding with ParameterEncoding thanks the Alamofire documentation and all the help provide in Stack Overflow and still no success.
When I make my request with Postman or with curl in my terminal, there is no problem but when I develop in swift with Alamofire, I get an internal error 500 or nothing passed in my response (when I set my parameter in my request function with the keyword encoding : JSONEncoding.default).
Here is the curl exemple :
curl -X GET https://blih.epitech.eu/user/repositories
-H 'Content-Type: application/json'
-d '{"user": account, "signature": password}'
Here is the sample of my code :
/// swift 5
let userString = #"{"user":"\#(account)","signature":"\#(signaturePassword)"}"#
let urlString = "https://blih.epitech.eu/repositories"
Alamofire.request(urlString, method: .get, parameters: [:], encoding: JSONStringArrayEncoding.init(string: userString), headers: nil)
.responseJSON { (response) in
debugPrint(response)
}
The 'JSONStringArrayEncoding' is a structure with my Custom Encoding :
struct JSONStringArrayEncoding: ParameterEncoding {
private let myString: String
init(string: String) {
self.myString = string
}
func encode(_ urlRequest: URLRequestConvertible, with parameters: Parameters?) throws -> URLRequest {
var urlRequest = try urlRequest.asURLRequest()
let data = Data(myString.utf8)
if urlRequest.value(forHTTPHeaderField: "Content-Type") == nil {
urlRequest.setValue("application/json", forHTTPHeaderField: "Content-Type")
}
urlRequest.httpBody = data
return urlRequest
}
}
I expect to have a json Array when the request is successsful :
{
"message": "Listing successful",
"repositories": {
"aaaa": {
"uuid": "e3a6bea1-c581-5fde-a3a8",
"url": "https://blih.epitech.eu/repository/aaa"
}
}
}
But I get an internal error 500.
Thank you in advance for your help.

Answer 1

Just replace JSON.encoding -> URLEncoding
Alamofire.request(path,method: .get, parameters: params, encoding: URLEncoding.default, headers: nil)

Answer 2

As you have mentioned that, your request is working using postman or curl in terminal. Below is the result I'm getting
As pointed by #Glenn, result of visiting browser with url blih.epitech.eu/user/repositories show result like below
I believe, there is something wrong with the url you're requesting to.
EDITED:
See the below image to see the why it is working with curl
Try your request as post once and add content-type = application/x-www-form-urlencoded I am not sure but it might help.

Answer 3

Try this:
let url = "https://blih.epitech.eu/user/repositories"
let param = ["user":"asdfdsf",
"signature":"password"]
if let jsonData = try? JSONEncoder().encode(param) {
var request = URLRequest(url: URL(string: url)!)
request.httpMethod = HTTPMethod.post.rawValue
request.setValue("application/json; charset=UTF-8", forHTTPHeaderField: "Content-Type")
request.httpBody = jsonData
Alamofire.request(request).responseJSON {
(response) in
debugPrint(response)
}
}
OUTPUT:
{
error = "Bad token";
}