Signup/ login from backend API

[david18]

hi

I want my users to be able to sign up from my HTML form
I achieve that by seeing a request to my backend API

also can a user access_token contain the “user_metadata”: { “TaxId”:“83764876” }

I am sending on sign up ?

(my app allows password as grant type)

my API calls to https://URL/dbconnections/signup

and it works → I am getting a valid response (user is created)

login form

I want my users to fill my HTML → send a request to my backend

when I try to call https://URL/oauth/token from my backend

I am getting

{
“error”: “access_denied”,
“error_description”: “Unauthorized”
}

this is the request

{
“client_id”: “”,
“grant_type”: “password”,
“username”: “addggdu@gmail.com”,
“password”: “”
}

what am I doing wrong?

thanks

[stephanie.chamblee]

Hi @david18,

Welcome to the Community!

Regarding the access_denied error, it’s possible that you need to update the authentication method within your application settings.

For public clients, “None” should be selected for the “Token Endpoint Authentication Method”:

You might also need to select a default directory for your tenant. This setting is located in the top-right dropdown menu. Click Settings and under “API Authorization Settings”, enter “Username-Password-Authentication” for Default Directory

This topic might be helpful as well:

Using the Request Owner Password Endpoint on a new dev account

Thanks @Carlos_Mostek, So finally got the /token endpoint working. I indicate below the exact config in case anyone else has the same issue in the future: URL endpoint: https://{AUTH0_DOMAIN}/oauth/token Post body: { "client_id": "***", "grant_type": "password", "username": "email@provider.com", "password": "***" } Client Application settings: The Client application who’s client ID you are using must be of type native and password must be checked within the Applications -> …

also can a user access_token contain the “user_metadata”: { “TaxId”:“1234567” }

Yes, you can add user metadata properties to the Access Token or ID Token using Rules. You may want to be careful about adding any sensitive information within a JWT because the payload is base64 encoded and easy to decode.

Here is an example of adding custom claims to an Access Token and an ID Token:

Sample Use Cases: Rules with Authorization

[david18]

it worked adding the default_drirectory…

now i want to extract the userId (at my db) from the token when users hit my endpoint

can I dot it from req.user ?

thanks

[stephanie.chamblee]

Glad it is working for you now!

You can use the id_token value you receive from the /OAuth/token response to get user profile information.

You can decode the token using a JWT verification library (example ID Token).

The ID token’s payload contains the sub claim, which is the token subject. The value for this claim will be <connection identifier | user ID, for example google-oauth2|123456789 or auth0|123456789