Create Custom Database Connections
Availability varies by Auth0 plan
Your Auth0 plan or custom agreement affects whether this feature is available. To learn more, read Pricing.
If you have your own user database, you can use it as an identity provider in Auth0 to authenticate users. In this process, you will create the custom database connection, create database action scripts, and add configuration parameters.
Auth0 allows you to create connections and scripts for most of the commonly-used databases, including:
ASP.NET Membership Provider
MongoDB
MySQL
PostgreSQL
SQLServer
Windows Azure SQL Database
Web services accessed via Basic Auth
You can connect to any kind of database or web service with a properly-configured custom script. Note that input sanitization must be completed on the customer end; Auth0 does not sanitize or validate any username/password combination passed by a custom database. Custom Database scripts are subject to Auth0's Rate Limit Policy.
Network firewall
If you are behind a firewall, this feature may require that you add the appropriate Auth0 IP addresses to the Allow List to work properly.
Create the connection in the Auth0 Dashboard
Navigate to Auth0 Dashboard > Authentication > Database, and select Create DB Connection.
Configure the connection's settings, and click Create:
Once Auth0 creates your connection, you'll have the following views (in addition to the Settings view):Parameter Definition Name The name of the connection. The name must start and end with an alphanumeric character, contain only alphanumeric characters and dashes, and not exceed 35 characters. Requires Username Forces users to provide a username and email address during registration. Username length Sets the minimum and maximum length for a username. Disable Signups Prevents signups to your application. You will still be able to create users with your API credentials or via the Auth0 Dashboard. Password Policy
Custom Database
Applications
Try Connection
Select the Custom Database view, and enable the Use my own database switch.
Create database action scripts
Toggling the Use my own database switch enables the Database Action Scripts area where you will create scripts to configure how authentication works when using your database. You can write your database action scripts, or you can select a template from the Templates dropdown and modifying it as necessary.
You must configure a login
script; additional scripts for user functionality are optional.
The available database action scripts are:
Name | Description | Parameters |
---|---|---|
Login Required |
Executes each time a user attempts to log in. | email , password |
Create | Executes when a user signs up. | user.email , user.password |
Verify | Executes after a user follows the verification link. | email |
Change Password | Executes when a user clicks on the confirmation link after a reset password request. | email , newPassword |
Get User | Retrieves a user profile from your database without authenticating the user. | email |
Delete | Executes when a user is deleted using the API or Auth0 Dashboard. | id |
Change Email | Executes when a change in the email address, or the email address status, for a user occurs. | email , newEmail , verified |
To learn more about the scripts, read Custom Database Action Script Templates and Custom Database Action Script Execution Best Practices.
Create a Login script
Avoid user ID collisions with multiple databases
The id
(or alternatively user_id
) property in the returned user profile will be used by Auth0 to identify the user.
If you are using multiple custom database connections, then id
value must be unique across all the custom database connections to avoid user ID collisions. Our recommendation is to prefix the value of id
with the connection name (omitting any whitespace). To learn more about user IDs, read Identify Users.
The following steps use an example for a MySQL database login script
After toggling the Use my own database switch, the Database Action Scripts area is enabled. Make sure you are on the Login tab.
Use the Templates dropdown to select the MySQL database script template.
The above script connects to a MySQL database and executes a query to retrieve the first user withfunction login(email, password, callback) { var bcrypt = require('bcrypt'); var mysql = require('mysql'); var connection = mysql.createConnection({ host: 'localhost', user: 'me', password: 'secret', database: 'mydb' }); connection.connect(); var query = "SELECT id, nickname, email, password " + "FROM users WHERE email = ?"; connection.query(query, [email], function (err, results) { if (err) return callback(err); if (results.length === 0) return callback(new WrongUsernameOrPasswordError(email)); var user = results[0]; bcrypt.compare(password, user.password, function (err, isValid) { if (err) { callback(err); } else if (!isValid) { callback(new WrongUsernameOrPasswordError(email)); } else { callback(null, { // This prefix (replace with your own custom DB name) // ensure uniqueness across different custom DBs if there's the // possibility of collisions (e.g. if the user ID is an email address or an integer) id: 'MyConnection1|' + user.id.toString(), nickname: user.nickname, email: user.email }); } }); }); }
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/email == user.email
. With thebcrypt.compareSync
method, it then validates that the passwords match, and if successful, returns an object containing the user profile information includingid
,nickname
, andemail
. This script assumes that you have ausers
table containing these columns. Theid
returned by Login script is used to construct the user ID attribute of the user profile.Click Save and Try.
In the pop-up modal, enter your email and password and click Try. This provides a dropdown to select from a list of available runtimes, with your current runtime on top.
Script templates are not used by Auth0 until you click Save or Try. This is true even if you only modify one script and haven't made changes to any others. You must click Save at least once for all the scripts to be in place.
Custom database support for Organizations
If you use custom database connections in conjunction with Organizations, you can use the context
parameter in the script signature to make Organization details like id
, name
, and metadata
available to your custom database action scripts. Organization data is passed in the context object when the associated action happens in the context of an organization; for example, when a user authenticates on an organization’s login prompt, the login action script is passed. To learn more, read Database Connections.
Enable context object
Navigate to Auth0 Dashboard > Authentication > Database.
Select your database connection.
Under the Custom Database tab, find Context objects in database scripts and select Enable.
Use Organization context
Once the context object is enabled in Dashboard, you can add a `context` object to your custom database action scripts, inserted directly preceding the callback parameter. When events are triggered with Organization context, the corresponding data is made available to your custom database action scripts in the format below:
{
"organization": {
"display_name": "My Organization",
"id": "org_XXXXXX",
"metadata": {
"example": "value"
},
"name": "my-organization"
}
}
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{
"organization": {
"display_name": "My Organization",
"id": "org_XXXXXX",
"metadata": {
"example": "value"
},
"name": "my-organization"
}
}
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{
"organization": {
"display_name": "My Organization",
"id": "org_XXXXXX",
"metadata": {
"example": "value"
},
"name": "my-organization"
}
}
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{
"organization": {
"display_name": "My Organization",
"id": "org_XXXXXX",
"metadata": {
"example": "value"
},
"name": "my-organization"
}
}
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{
"organization": {
"display_name": "My Organization",
"id": "org_XXXXXX",
"metadata": {
"example": "value"
},
"name": "my-organization"
}
}
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Add configuration parameters
You can store parameters, like the credentials required to connect to your database, in the Settings section below the script editor. These will be available for all of your scripts, and you can access the parameter values using the configuration
object in your database action scripts (i.e., configuration.MYSQL_PASSWORD
).
Use the added parameters in your scripts to configure the connection. For example, you might add the following to the MySQL Login script:
function login (username, password, callback) {
var mysql = require('mysql');
var connection = mysql.createConnection({
host : configuration.MYSQL_HOST,
user : 'me',
password : configuration.MYSQL_PASSWORD,
database : 'mydb'
});
}
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