Embedded Passwordless Login in Regular Web Applications
To use the Embedded Passwordless APIs in Regular Web Applications, make sure you enable the Passwordless OTP grant at Auth0 Dashboard > Applications > Applications in your application's settings under Advanced Settings > Grant Types.
Passwordless authentication for Regular Web Applications consists of two steps:
Capture the user identifier in your application (the user's email or phone number) and invoke the
/passwordless/start
endpoint to initiate the passwordless flow. The user will get an email, an SMS with a one-time-use code, or a magic link.If you did not send a magic link, prompt the user for the one-time-use code, and call the
/oauth/token
endpoint to get authentication tokens.
Note that when using magic links, you don't need to call /oauth/token
. The user will click the magic link and be redirected to the application's callback URL.
Below, we list a few code snippets that can be used to call these API endpoints for different scenarios.
Send a one-time-use code via email
curl --request POST \
--url 'https://{yourDomain}/passwordless/start' \
--header 'content-type: application/json' \
--data '{"client_id": "{yourClientId}", "client_secret": "{yourClientSecret}", "connection": "email", "email": "{userEmail}","send": "code"}'
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var client = new RestClient("https://{yourDomain}/passwordless/start");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddParameter("application/json", "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
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package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://{yourDomain}/passwordless/start"
payload := strings.NewReader("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("content-type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}
Was this helpful?
HttpResponse<String> response = Unirest.post("https://{yourDomain}/passwordless/start")
.header("content-type", "application/json")
.body("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}")
.asString();
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var axios = require("axios").default;
var options = {
method: 'POST',
url: 'https://{yourDomain}/passwordless/start',
headers: {'content-type': 'application/json'},
data: {
client_id: '{yourClientId}',
client_secret: '{yourClientSecret}',
connection: 'email',
email: '{userEmail}',
send: 'code'
}
};
axios.request(options).then(function (response) {
console.log(response.data);
}).catch(function (error) {
console.error(error);
});
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#import <Foundation/Foundation.h>
NSDictionary *headers = @{ @"content-type": @"application/json" };
NSDictionary *parameters = @{ @"client_id": @"{yourClientId}",
@"client_secret": @"{yourClientSecret}",
@"connection": @"email",
@"email": @"{userEmail}",
@"send": @"code" };
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/passwordless/start"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"%@", httpResponse);
}
}];
[dataTask resume];
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$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{yourDomain}/passwordless/start",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}",
CURLOPT_HTTPHEADER => [
"content-type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
Was this helpful?
import http.client
conn = http.client.HTTPSConnection("")
payload = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}"
headers = { 'content-type': "application/json" }
conn.request("POST", "/{yourDomain}/passwordless/start", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
Was this helpful?
require 'uri'
require 'net/http'
require 'openssl'
url = URI("https://{yourDomain}/passwordless/start")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request.body = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"code\"}"
response = http.request(request)
puts response.read_body
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import Foundation
let headers = ["content-type": "application/json"]
let parameters = [
"client_id": "{yourClientId}",
"client_secret": "{yourClientSecret}",
"connection": "email",
"email": "{userEmail}",
"send": "code"
] as [String : Any]
let postData = JSONSerialization.data(withJSONObject: parameters, options: [])
let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/passwordless/start")! 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)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
Was this helpful?
Send a magic link via email
You need to specify send: link
.
curl --request POST \
--url 'https://{yourDomain}/passwordless/start' \
--header 'content-type: application/json' \
--data '{"client_id": "{yourClientId}", "client_secret": "{yourClientSecret}", "connection": "email", "email": "{userEmail}","send": "link"}'
Was this helpful?
var client = new RestClient("https://{yourDomain}/passwordless/start");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddParameter("application/json", "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Was this helpful?
package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://{yourDomain}/passwordless/start"
payload := strings.NewReader("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("content-type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}
Was this helpful?
HttpResponse<String> response = Unirest.post("https://{yourDomain}/passwordless/start")
.header("content-type", "application/json")
.body("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}")
.asString();
Was this helpful?
var axios = require("axios").default;
var options = {
method: 'POST',
url: 'https://{yourDomain}/passwordless/start',
headers: {'content-type': 'application/json'},
data: {
client_id: '{yourClientId}',
client_secret: '{yourClientSecret}',
connection: 'email',
email: '{userEmail}',
send: 'link'
}
};
axios.request(options).then(function (response) {
console.log(response.data);
}).catch(function (error) {
console.error(error);
});
Was this helpful?
#import <Foundation/Foundation.h>
NSDictionary *headers = @{ @"content-type": @"application/json" };
NSDictionary *parameters = @{ @"client_id": @"{yourClientId}",
@"client_secret": @"{yourClientSecret}",
@"connection": @"email",
@"email": @"{userEmail}",
@"send": @"link" };
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/passwordless/start"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"%@", httpResponse);
}
}];
[dataTask resume];
Was this helpful?
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{yourDomain}/passwordless/start",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}",
CURLOPT_HTTPHEADER => [
"content-type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
Was this helpful?
import http.client
conn = http.client.HTTPSConnection("")
payload = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}"
headers = { 'content-type': "application/json" }
conn.request("POST", "/{yourDomain}/passwordless/start", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
Was this helpful?
require 'uri'
require 'net/http'
require 'openssl'
url = URI("https://{yourDomain}/passwordless/start")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request.body = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"email\", \"email\": \"{userEmail}\",\"send\": \"link\"}"
response = http.request(request)
puts response.read_body
Was this helpful?
import Foundation
let headers = ["content-type": "application/json"]
let parameters = [
"client_id": "{yourClientId}",
"client_secret": "{yourClientSecret}",
"connection": "email",
"email": "{userEmail}",
"send": "link"
] as [String : Any]
let postData = JSONSerialization.data(withJSONObject: parameters, options: [])
let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/passwordless/start")! 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)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
Was this helpful?
Send a one-time-use password via SMS
curl --request POST \
--url 'https://{yourDomain}/passwordless/start' \
--header 'content-type: application/json' \
--data '{"client_id": "{yourClientId}", "client_secret": "{yourClientSecret}", "connection": "sms", "phone_number": "{userPhoneNumber}","send": "code"}'
Was this helpful?
var client = new RestClient("https://{yourDomain}/passwordless/start");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddParameter("application/json", "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Was this helpful?
package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://{yourDomain}/passwordless/start"
payload := strings.NewReader("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("content-type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}
Was this helpful?
HttpResponse<String> response = Unirest.post("https://{yourDomain}/passwordless/start")
.header("content-type", "application/json")
.body("{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}")
.asString();
Was this helpful?
var axios = require("axios").default;
var options = {
method: 'POST',
url: 'https://{yourDomain}/passwordless/start',
headers: {'content-type': 'application/json'},
data: {
client_id: '{yourClientId}',
client_secret: '{yourClientSecret}',
connection: 'sms',
phone_number: '{userPhoneNumber}',
send: 'code'
}
};
axios.request(options).then(function (response) {
console.log(response.data);
}).catch(function (error) {
console.error(error);
});
Was this helpful?
#import <Foundation/Foundation.h>
NSDictionary *headers = @{ @"content-type": @"application/json" };
NSDictionary *parameters = @{ @"client_id": @"{yourClientId}",
@"client_secret": @"{yourClientSecret}",
@"connection": @"sms",
@"phone_number": @"{userPhoneNumber}",
@"send": @"code" };
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/passwordless/start"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"%@", httpResponse);
}
}];
[dataTask resume];
Was this helpful?
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{yourDomain}/passwordless/start",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}",
CURLOPT_HTTPHEADER => [
"content-type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
Was this helpful?
import http.client
conn = http.client.HTTPSConnection("")
payload = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}"
headers = { 'content-type': "application/json" }
conn.request("POST", "/{yourDomain}/passwordless/start", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
Was this helpful?
require 'uri'
require 'net/http'
require 'openssl'
url = URI("https://{yourDomain}/passwordless/start")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request.body = "{\"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"connection\": \"sms\", \"phone_number\": \"{userPhoneNumber}\",\"send\": \"code\"}"
response = http.request(request)
puts response.read_body
Was this helpful?
import Foundation
let headers = ["content-type": "application/json"]
let parameters = [
"client_id": "{yourClientId}",
"client_secret": "{yourClientSecret}",
"connection": "sms",
"phone_number": "{userPhoneNumber}",
"send": "code"
] as [String : Any]
let postData = JSONSerialization.data(withJSONObject: parameters, options: [])
let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/passwordless/start")! 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)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
Was this helpful?
Authenticate an SMS user
curl --request POST \
--url 'https://{yourDomain}/oauth/token' \
--header 'content-type: application/json' \
--data '{"grant_type": "http://auth0.com/oauth/grant-type/passwordless/otp", "client_id": "{yourClientId}", "client_secret": "YOUR_CLIENT_SECRET", "username": "USER_PHONE_NUMBER", "otp": "code", "realm": "sms", "audience": "your-api-audience","scope": "openid profile email"}'
Was this helpful?
var client = new RestClient("https://{yourDomain}/oauth/token");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddParameter("application/json", "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Was this helpful?
package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://{yourDomain}/oauth/token"
payload := strings.NewReader("{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("content-type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}
Was this helpful?
HttpResponse<String> response = Unirest.post("https://{yourDomain}/oauth/token")
.header("content-type", "application/json")
.body("{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}")
.asString();
Was this helpful?
var axios = require("axios").default;
var options = {
method: 'POST',
url: 'https://{yourDomain}/oauth/token',
headers: {'content-type': 'application/json'},
data: {
grant_type: 'http://auth0.com/oauth/grant-type/passwordless/otp',
client_id: '{yourClientId}',
client_secret: 'YOUR_CLIENT_SECRET',
username: 'USER_PHONE_NUMBER',
otp: 'code',
realm: 'sms',
audience: 'your-api-audience',
scope: 'openid profile email'
}
};
axios.request(options).then(function (response) {
console.log(response.data);
}).catch(function (error) {
console.error(error);
});
Was this helpful?
#import <Foundation/Foundation.h>
NSDictionary *headers = @{ @"content-type": @"application/json" };
NSDictionary *parameters = @{ @"grant_type": @"http://auth0.com/oauth/grant-type/passwordless/otp",
@"client_id": @"{yourClientId}",
@"client_secret": @"YOUR_CLIENT_SECRET",
@"username": @"USER_PHONE_NUMBER",
@"otp": @"code",
@"realm": @"sms",
@"audience": @"your-api-audience",
@"scope": @"openid profile email" };
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/oauth/token"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"%@", httpResponse);
}
}];
[dataTask resume];
Was this helpful?
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{yourDomain}/oauth/token",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}",
CURLOPT_HTTPHEADER => [
"content-type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
Was this helpful?
import http.client
conn = http.client.HTTPSConnection("")
payload = "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}"
headers = { 'content-type': "application/json" }
conn.request("POST", "/{yourDomain}/oauth/token", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
Was this helpful?
require 'uri'
require 'net/http'
require 'openssl'
url = URI("https://{yourDomain}/oauth/token")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request.body = "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"YOUR_CLIENT_SECRET\", \"username\": \"USER_PHONE_NUMBER\", \"otp\": \"code\", \"realm\": \"sms\", \"audience\": \"your-api-audience\",\"scope\": \"openid profile email\"}"
response = http.request(request)
puts response.read_body
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import Foundation
let headers = ["content-type": "application/json"]
let parameters = [
"grant_type": "http://auth0.com/oauth/grant-type/passwordless/otp",
"client_id": "{yourClientId}",
"client_secret": "YOUR_CLIENT_SECRET",
"username": "USER_PHONE_NUMBER",
"otp": "code",
"realm": "sms",
"audience": "your-api-audience",
"scope": "openid profile email"
] as [String : Any]
let postData = JSONSerialization.data(withJSONObject: parameters, options: [])
let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/oauth/token")! 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)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
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Authenticate an Email user
curl --request POST \
--url 'https://{yourDomain}/oauth/token' \
--header 'content-type: application/json' \
--data '{"grant_type": "http://auth0.com/oauth/grant-type/passwordless/otp", "client_id": "{yourClientId}", "client_secret": "{yourClientSecret}", "username": "{userPhoneNumber}", "otp": "code", "realm": "email", "audience": "your-api-audience", "scope": "openid profile email"}'
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var client = new RestClient("https://{yourDomain}/oauth/token");
var request = new RestRequest(Method.POST);
request.AddHeader("content-type", "application/json");
request.AddParameter("application/json", "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
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package main
import (
"fmt"
"strings"
"net/http"
"io/ioutil"
)
func main() {
url := "https://{yourDomain}/oauth/token"
payload := strings.NewReader("{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("content-type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := ioutil.ReadAll(res.Body)
fmt.Println(res)
fmt.Println(string(body))
}
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HttpResponse<String> response = Unirest.post("https://{yourDomain}/oauth/token")
.header("content-type", "application/json")
.body("{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}")
.asString();
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var axios = require("axios").default;
var options = {
method: 'POST',
url: 'https://{yourDomain}/oauth/token',
headers: {'content-type': 'application/json'},
data: {
grant_type: 'http://auth0.com/oauth/grant-type/passwordless/otp',
client_id: '{yourClientId}',
client_secret: '{yourClientSecret}',
username: '{userPhoneNumber}',
otp: 'code',
realm: 'email',
audience: 'your-api-audience',
scope: 'openid profile email'
}
};
axios.request(options).then(function (response) {
console.log(response.data);
}).catch(function (error) {
console.error(error);
});
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#import <Foundation/Foundation.h>
NSDictionary *headers = @{ @"content-type": @"application/json" };
NSDictionary *parameters = @{ @"grant_type": @"http://auth0.com/oauth/grant-type/passwordless/otp",
@"client_id": @"{yourClientId}",
@"client_secret": @"{yourClientSecret}",
@"username": @"{userPhoneNumber}",
@"otp": @"code",
@"realm": @"email",
@"audience": @"your-api-audience",
@"scope": @"openid profile email" };
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://{yourDomain}/oauth/token"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:@"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(@"%@", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(@"%@", httpResponse);
}
}];
[dataTask resume];
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$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://{yourDomain}/oauth/token",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}",
CURLOPT_HTTPHEADER => [
"content-type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
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import http.client
conn = http.client.HTTPSConnection("")
payload = "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}"
headers = { 'content-type': "application/json" }
conn.request("POST", "/{yourDomain}/oauth/token", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))
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require 'uri'
require 'net/http'
require 'openssl'
url = URI("https://{yourDomain}/oauth/token")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request.body = "{\"grant_type\": \"http://auth0.com/oauth/grant-type/passwordless/otp\", \"client_id\": \"{yourClientId}\", \"client_secret\": \"{yourClientSecret}\", \"username\": \"{userPhoneNumber}\", \"otp\": \"code\", \"realm\": \"email\", \"audience\": \"your-api-audience\", \"scope\": \"openid profile email\"}"
response = http.request(request)
puts response.read_body
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import Foundation
let headers = ["content-type": "application/json"]
let parameters = [
"grant_type": "http://auth0.com/oauth/grant-type/passwordless/otp",
"client_id": "{yourClientId}",
"client_secret": "{yourClientSecret}",
"username": "{userPhoneNumber}",
"otp": "code",
"realm": "email",
"audience": "your-api-audience",
"scope": "openid profile email"
] as [String : Any]
let postData = JSONSerialization.data(withJSONObject: parameters, options: [])
let request = NSMutableURLRequest(url: NSURL(string: "https://{yourDomain}/oauth/token")! 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)
} else {
let httpResponse = response as? HTTPURLResponse
print(httpResponse)
}
})
dataTask.resume()
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Authenticate a user through a magic link
When you send a magic link, you don't need to call an API to authenticate the user. Users will click the link and be redirected to the callback URL.
Setting the auth0-forwarded-for header for rate-limit purposes
The /passwordless/start
endpoint has a rate limit of 50 requests per hour per IP. If you call the API from the server-side, your backend's IP may easily hit these rate limits. To learn how to address this issue, read the Rate Limiting in Passwordless Endpoints section of Using Passwordless APIs.
Customize MFA
Customize MFA with embedded flows. Use the MFA API to allow users to enroll and challenge with factors of their choice that are supported by your application.
When using Lock for Web, the oauth/token
endpoint returns the mfa_required
error and includes the mfa_token
you need to use the MFA API and mfa_requirements
parameter with a list of authenticators your application currently supports:
{
"error": "mfa_required",
"error_description": "Multifactor authentication required",
"mfa_token": "Fe26...Ha",
"mfa_requirements": {
"challenge": [
{ "type": "otp" },
{ "type": "push-notification" },
{ "type": "phone" },
{ "type": "recovery-code" }
{ "type": "email"} //can only work with challenge
]
}
}
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Use the mfa_token
to call the mfa/authenticator
endpoint to list all factors the user has enrolled and match the same type
your application supports. You also need to obtain the matching authenticator_type
to issue challenges:
[
{
"type": "recovery-code",
"id": "recovery-code|dev_qpOkGUOxBpw6R16t",
"authenticator_type": "recovery-code",
"active": true
},
{
"type": "otp",
"id": "totp|dev_6NWz8awwC8brh2dN",
"authenticator_type": "otp",
"active": true
}
]
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Proceed to enforce the MFA challenge by calling the request/mfa/challenge
endpoint.
Further customize your MFA flow with Auth0 Actions. To learn more, read Actions Triggers: post-challenge - API Object.