**API Connection**: To extract metadata from Superset via API, user must have at least `can read on Chart`&`can read on Dashboard` permissions.
**Database Connection**: To extract metadata from Superset via MySQL or Postgres database, database user must have at least `SELECT` privilege on `dashboards`&`slices` tables within superset schema.
**hostPort**: The `Host and Post` parameter is common for all three modes of authentication which specifies the host and port of the Superset instance. This should be specified as a string in the format `http://hostname:port` or `https://hostname:port`. For example, you might set the hostPort parameter to `https://org.superset.com:8088`.
**connection**: Add the connection details to fetch metadata from Superset either through APIs or Database.
#### For Superset API Connection:
Superset API connection is the default mode of authentication where we fetch the metadata using [Superset APIs](https://superset.apache.org/docs/api/).
**Note**:
Superset only supports basic or ldap authentication through APIs so if you have SSO enabled on your Superset instance then this mode of authentication will not work for you and you can opt for MySQL or Postgres Connection to fetch metadata directly from the database in the backend of Superset.
**username**: Username to connect to Superset, for ex. `user@organization.com`. This user should have access to relevant dashboards and charts in Superset to fetch the metadata.
**password**: Password of the user account to connect with Superset.
**provider**: Choose between `db`(default) or `ldap` mode of Authentication provider for the Superset service. This parameter is used internally to connect to Superset's REST API.
{% /codeInfo %}
{% codeInfo srNumber=2 %}
#### For MySQL Connection:
You can use Mysql Connection when you have SSO enabled and your Superset is backed by Mysql database.
**username**: Specify the User to connect to MySQL. It should have enough privileges to read all the metadata. Make sure the user has select privileges on `dashboards`, `tables`&`slices` tables of superset schema.
**password**: Password to connect to MySQL.
**hostPort**: Enter the fully qualified hostname and port number for your MySQL deployment in the Host and Port field.
- **databaseSchema**: Enter the database schema which is associated with the Superset instance..
**Connection Options (Optional)**: Enter the details for any additional connection options that can be sent to MySQL during the connection. These details must be added as Key-Value pairs.
**Connection Arguments (Optional)**: Enter the details for any additional connection arguments such as security or protocol configs that can be sent to MySQL during the connection. These details must be added as Key-Value pairs.
- In case you are using Single-Sign-On (SSO) for authentication, add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "sso_login_url"`
{% /codeInfo %}
{% codeInfo srNumber=3 %}
#### For Postgres Connection:
You can use Postgres Connection when you have SSO enabled and your Superset is backed by Postgres database.
- **username**: Specify the User to connect to Postgres. Make sure the user has select privileges on `dashboards`, `tables`&`slices` tables of superset schema.
**password**: Password to connect to Postgres.
**hostPort**: Enter the fully qualified hostname and port number for your Postgres deployment in the Host and Port field.
- **database**: Initial Postgres database to connect to. Specify the name of database associated with Superset instance.
**Connection Options (Optional)**: Enter the details for any additional connection options that can be sent to Postgres during the connection. These details must be added as Key-Value pairs.
**Connection Arguments (Optional)**: Enter the details for any additional connection arguments such as security or protocol configs that can be sent to Postgres during the connection. These details must be added as Key-Value pairs.
- In case you are using Single-Sign-On (SSO) for authentication, add the `authenticator` details in the Connection Arguments as a Key-Value pair as follows: `"authenticator" : "sso_login_url"`
## Securing Superset Connection with SSL in OpenMetadata
1. To establish secure connections between OpenMetadata and Superset, in the `YAML` under `sslConfig`, we need to add `caCertificate` and update the certificate path. Ensure that the certificates are accessible from the Airflow Server.
2. To establish secure connections between OpenMetadata and Superset's MySQL database, you need to configure SSL certificates appropriately. If you only require SSL validation, specify the `caCertificate` to use the CA certificate for validating the server's certificate. For mutual authentication, where both client and server need to authenticate each other, you must provide all three parameters: `ssl_key` for the client’s private key, `ssl_cert` for the client’s SSL certificate, and `ssl_ca` for the CA certificate to validate the server’s certificate.
```yaml
type: Mysql
sslConfig:
caCertificate: "/path/to/ca_certificate"
sslCertificate: "/path/to/your/ssl_cert"
sslKey: "/path/to/your/ssl_key"
```
3. To establish secure connxxwections between OpenMetadata and Superset's PostgreSQL database, you can configure SSL using different SSL modes provided by PostgreSQL, each offering varying levels of security.Under `PostgresConnection Advanced Config`, specify the SSL mode appropriate for your connection, such as `prefer`, `verify-ca`, `allow`, and others. After selecting the SSL mode, provide the CA certificate used for SSL validation (`caCertificate`). Note that PostgreSQL requires only the CA certificate for SSL validation.
