> For a complete page index, fetch https://docs.transak.com/llms.txt

# Send User OTP

POST https://api-gateway-stg.transak.com/api/v2/auth/login
Content-Type: application/json

The **Send User OTP** is a **non-authenticated** API method that allows you to initiate user authentication by sending an OTP to the provided email address.

Reference: https://docs.transak.com/api/whitelabel/user/send-user-otp

## Request

### Headers

- `x-user-ip` (string, required) — End user's originating IP. More details [here](/guides/mandatory-security-changes#user-ip-header-in-apis)
- `x-api-key` (string, required) — Partner API Key present in Transak Dashboard.

### Body (application/json)

This endpoint expects an object.

- `apiKey` (string, required) — Your API Key from Transak Dashboard
- `email` (string, required) — Your Email address used to receive OTP.

## Response

### 200

200 - Success User OTP

- `data` (ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaData, required)

## Errors

### 400 Bad Request Error

400 - Missing Field

- `error` (ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaError, required)

### 401 Unauthorized Error

401 - Unauthorized

- `error` (ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaError, required)

### 500 Internal Server Error

500 - Internal Server Error

- `error` (ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaError, required)

## Types

### ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaData

- `isTncAccepted` (boolean, required)
- `stateToken` (string, required)
- `email` (string, required)
- `expiresIn` (integer, required)

### ApiV2AuthLoginPostResponsesContentApplicationJsonSchemaError

- `statusCode` (integer, required)
- `message` (string, required)

## Examples

**Request**

```json
{
  "apiKey": "",
  "email": ""
}
```

**Response**

```json
{
  "data": {
    "isTncAccepted": false,
    "stateToken": "301fa4e02eb5b095b7f0173585ca628e",
    "email": "test@transak.com",
    "expiresIn": 600
  }
}
```

**SDK Code**

```python Success User OTP
import requests

url = "https://api-gateway-stg.transak.com/api/v2/auth/login"

payload = {
    "apiKey": "",
    "email": ""
}
headers = {
    "x-api-key": "",
    "x-user-ip": "",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript Success User OTP
const url = 'https://api-gateway-stg.transak.com/api/v2/auth/login';
const options = {
  method: 'POST',
  headers: {'x-api-key': '', 'x-user-ip': '', 'Content-Type': 'application/json'},
  body: '{"apiKey":"","email":""}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Success User OTP
package main

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

func main() {

	url := "https://api-gateway-stg.transak.com/api/v2/auth/login"

	payload := strings.NewReader("{\n  \"apiKey\": \"\",\n  \"email\": \"\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "")
	req.Header.Add("x-user-ip", "")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby Success User OTP
require 'uri'
require 'net/http'

url = URI("https://api-gateway-stg.transak.com/api/v2/auth/login")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = ''
request["x-user-ip"] = ''
request["Content-Type"] = 'application/json'
request.body = "{\n  \"apiKey\": \"\",\n  \"email\": \"\"\n}"

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

```java Success User OTP
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api-gateway-stg.transak.com/api/v2/auth/login")
  .header("x-api-key", "")
  .header("x-user-ip", "")
  .header("Content-Type", "application/json")
  .body("{\n  \"apiKey\": \"\",\n  \"email\": \"\"\n}")
  .asString();
```

```php Success User OTP
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api-gateway-stg.transak.com/api/v2/auth/login', [
  'body' => '{
  "apiKey": "",
  "email": ""
}',
  'headers' => [
    'Content-Type' => 'application/json',
    'x-api-key' => '',
    'x-user-ip' => '',
  ],
]);

echo $response->getBody();
```

```csharp Success User OTP
using RestSharp;

var client = new RestClient("https://api-gateway-stg.transak.com/api/v2/auth/login");
var request = new RestRequest(Method.POST);
request.AddHeader("x-api-key", "");
request.AddHeader("x-user-ip", "");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"apiKey\": \"\",\n  \"email\": \"\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Success User OTP
import Foundation

let headers = [
  "x-api-key": "",
  "x-user-ip": "",
  "Content-Type": "application/json"
]
let parameters = [
  "apiKey": "",
  "email": ""
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api-gateway-stg.transak.com/api/v2/auth/login")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```