setUrl('{{brand}}/api/v2/AddContactApi/addContact');
$request->setMethod(HTTP_Request2::METHOD_POST);
$request->setConfig(array(
 'follow_redirects' => TRUE
));
$request->setHeader(array(
 'Content-Length' => ''
));
$request->setBody('{"ssid": "{{ssid}}","clId": 123,"action": 0,"record": {"mobile": "919876543210","name": "John Doe","email": "john@example.com"}}');
try {
 $response = $request->send();
 if ($response->getStatus() == 200) {
echo $response->getBody();
 }
 else {
echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
$response->getReasonPhrase();
 }
}
catch(HTTP_Request2_Exception $e) {
 echo 'Error: ' . $e->getMessage();
}

import http.client

conn = http.client.HTTPSConnection("{{brand}}")
payload = "{\"ssid\": \"{{ssid}}\",\"clId\": 123,\"action\": 0,\"record\": {\"mobile\": \"919876543210\",\"name\": \"John Doe\",\"email\": \"john@example.com\"}}"
headers = {
 'Content-Length': ''
}
conn.request("POST", "/api/v2/AddContactApi/addContact", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

var client = new RestClient("{{brand}}/api/v2/AddContactApi/addContact");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
var body = @"{" + "\n" +
@"  ""ssid"": ""{{ssid}}""," + "\n" +
@"  ""clId"": 123," + "\n" +
@"  ""action"": 0," + "\n" +
@"  ""record"": {" + "\n" +
@"    ""mobile"": ""919876543210""," + "\n" +
@"    ""name"": ""John Doe""," + "\n" +
@"    ""email"": ""john@example.com""" + "\n" +
@"  }" + "\n" +
@"}";
request.AddParameter("text/plain", body,  ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

curl --location -g --request POST '{{brand}}/api/v2/AddContactApi/addContact' \
--data-raw '{
  "ssid": "{{ssid}}",
  "clId": 123,
  "action": 0,
  "record": {
    "mobile": "919876543210",
    "name": "John Doe",
    "email": "john@example.com"
  }
}'

var request = http.Request('POST', Uri.parse('{{brand}}/api/v2/AddContactApi/addContact'));
request.body = '''{\n  "ssid": "{{ssid}}",\n  "clId": 123,\n  "action": 0,\n  "record": {\n    "mobile": "919876543210",\n    "name": "John Doe",\n    "email": "john@example.com"\n  }\n}''';

http.StreamedResponse response = await request.send();

if (response.statusCode == 200) {
   print(await response.stream.bytesToString());
}
else {
   print(response.reasonPhrase);
}

package main

import (
   "fmt"
   "strings"
   "net/http"
   "io/ioutil"
)

func main() {

   url := "%7B%7Bbrand%7D%7D/api/v2/AddContactApi/addContact"
   method := "POST"

   payload := strings.NewReader(`{
  "ssid": "{{ssid}}",
  "clId": 123,
  "action": 0,
  "record": {
    "mobile": "919876543210",
    "name": "John Doe",
    "email": "john@example.com"
  }
}`)

   client := &http.Client {
   }
   req, err := http.NewRequest(method, url, payload)

   if err != nil {
      fmt.Println(err)
      return
   }
   res, err := client.Do(req)
   if err != nil {
      fmt.Println(err)
      return
   }
   defer res.Body.Close()

   body, err := ioutil.ReadAll(res.Body)
   if err != nil {
      fmt.Println(err)
      return
   }
   fmt.Println(string(body))
}

POST /api/v2/AddContactApi/addContact HTTP/1.1
Host: {{brand}}
Content-Length: 159

{
  "ssid": "{{ssid}}",
  "clId": 123,
  "action": 0,
  "record": {
    "mobile": "919876543210",
    "name": "John Doe",
    "email": "john@example.com"
  }
}

OkHttpClient client = new OkHttpClient().newBuilder()
   .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = RequestBody.create(mediaType, "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}");
Request request = new Request.Builder()
   .url("{{brand}}/api/v2/AddContactApi/addContact")
   .method("POST", body)
   .addHeader("Content-Length", "")
   .build();
Response response = client.newCall(request).execute();

var myHeaders = new Headers();
myHeaders.append("Content-Length", "");

var raw = "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}";

var requestOptions = {
   method: 'POST',
   headers: myHeaders,
   body: raw,
   redirect: 'follow'
};

fetch("{{brand}}/api/v2/AddContactApi/addContact", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
   curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
   curl_easy_setopt(curl, CURLOPT_URL, "%7B%7Bbrand%7D%7D/api/v2/AddContactApi/addContact");
   curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
   curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
   struct curl_slist *headers = NULL;
   headers = curl_slist_append(headers, "Content-Length: ");
   curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
   const char *data = "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}";
   curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
   res = curl_easy_perform(curl);
}
curl_easy_cleanup(curl);

#import 

dispatch_semaphore_t sema = dispatch_semaphore_create(0);

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"%7B%7Bbrand%7D%7D/api/v2/AddContactApi/addContact"]
   cachePolicy:NSURLRequestUseProtocolCachePolicy
   timeoutInterval:10.0];
NSDictionary *headers = @{
   @"Content-Length": @""
};

[request setAllHTTPHeaderFields:headers];
NSData *postData = [[NSData alloc] initWithData:[@"{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}" dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:postData];

[request setHTTPMethod:@"POST"];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
   if (error) {
      NSLog(@"%@", error);
      dispatch_semaphore_signal(sema);
   } else {
      NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
      NSError *parseError = nil;
      NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
      NSLog(@"%@",responseDictionary);
      dispatch_semaphore_signal(sema);
   }
}];
[dataTask resume];
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);

open Lwt
open Cohttp
open Cohttp_lwt_unix

let postData = ref "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}";;

let reqBody = 
   let uri = Uri.of_string "%7B%7Bbrand%7D%7D/api/v2/AddContactApi/addContact" in
   let headers = Header.init ()
      |> fun h -> Header.add h "Content-Length" ""
   in
   let body = Cohttp_lwt.Body.of_string !postData in

   Client.call ~headers ~body `POST uri >>= fun (_resp, body) ->
   body |> Cohttp_lwt.Body.to_string >|= fun body -> body

let () =
   let respBody = Lwt_main.run reqBody in
   print_endline (respBody)

$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Content-Length", "")

$body = "{`n  `"ssid`": `"{{ssid}}`",`n  `"clId`": 123,`n  `"action`": 0,`n  `"record`": {`n    `"mobile`": `"919876543210`",`n    `"name`": `"John Doe`",`n    `"email`": `"john@example.com`"`n  }`n}"

$response = Invoke-RestMethod '{{brand}}/api/v2/AddContactApi/addContact' -Method 'POST' -Headers $headers -Body $body
$response | ConvertTo-Json

require "uri"
require "net/http"

url = URI("{{brand}}/api/v2/AddContactApi/addContact")

http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::Post.new(url)
request["Content-Length"] = ""
request.body = "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}"

response = http.request(request)
puts response.read_body

printf '{
  "ssid": "{{ssid}}",
  "clId": 123,
  "action": 0,
  "record": {
    "mobile": "919876543210",
    "name": "John Doe",
    "email": "john@example.com"
  }
}'| http  --follow --timeout 3600 POST '{{brand}}/api/v2/AddContactApi/addContact' \
 Content-Length:

import Foundation
#if canImport(FoundationNetworking)
import FoundationNetworking
#endif

var semaphore = DispatchSemaphore (value: 0)

let parameters = "{\n  \"ssid\": \"{{ssid}}\",\n  \"clId\": 123,\n  \"action\": 0,\n  \"record\": {\n    \"mobile\": \"919876543210\",\n    \"name\": \"John Doe\",\n    \"email\": \"john@example.com\"\n  }\n}"
let postData = parameters.data(using: .utf8)

var request = URLRequest(url: URL(string: "{{brand}}/api/v2/AddContactApi/addContact")!,timeoutInterval: Double.infinity)
request.addValue("", forHTTPHeaderField: "Content-Length")

request.httpMethod = "POST"
request.httpBody = postData

let task = URLSession.shared.dataTask(with: request) { data, response, error in 
   guard let data = data else {
      print(String(describing: error))
      semaphore.signal()
      return
   }
   print(String(data: data, encoding: .utf8)!)
   semaphore.signal()
}

task.resume()
semaphore.wait()