@kapa.ai what does BasicHttpAuthenticator take input and what command does it execute internally

The

BasicHttpAuthenticator

in Airbyte is used to set the "Authorization" header with a (USER ID/password) pair, encoded using base64 as per [RFC 7617](https://developer.mozilla.org/en-US/docs/Web/HTTP/Authentication#basic_authentication_scheme). The following definition will set the header "Authorization" with a value

Basic {encoded credentials}

. The

BasicHttpAuthenticator

takes two inputs:

username

and

password

. The

password

is optional. Here is the schema for `BasicHttpAuthenticator`:

yaml BasicHttpAuthenticator:     type: object     additionalProperties: true     required:       - username     properties:       "$parameters":         "$ref": "#/definitions/$parameters"       username:         type: string       password:         type: string

And here are examples of how to use it:

yaml authenticator:     type: "BasicHttpAuthenticator"     username: "hello"     password: "world"

yaml authenticator:     type: "BasicHttpAuthenticator"     username: "hello"

Internally, the

BasicHttpAuthenticator

concatenates the username and password with a colon

:

and encodes the resulting string using the base64 algorithm. This encoded string is then used to set the "Authorization" header in the HTTP request. For example, for username

user

and password

passwd

, the base64-encoding of

user:passwd

is

dXNlcjpwYXNzd2Q=

. The HTTP request would then include the header

Authorization: Basic dXNlcjpwYXNzd2Q=

. For more information, you can refer to the [BasicHttpAuthenticator Reference](https://docs.airbyte.com/connector-development/config-based/understanding-the-yaml-file/reference#/definitions/BasicHttpAuthenticator) and the [Basic HTTP Authentication method](https://docs.airbyte.com/connector-development/connector-builder-ui/authentication#basic-http) in the Airbyte documentation.