Connectors
A connector in the Quantela platform is a logical connection to an external data system that may be the source of one or more datasets. The connector specifies the connection details for the external system, including the connection type (for example, HTTP or SQL), the network address or URL, and the credentials needed to connect to the external system. To search for specific connectors, enter a connector name, type, last updated by name, enabled streams, SSL verification and many more search criteria by key name and value.
Each connector is derived from a connection template. Depending on the type of provider, the connection template typically stores and caches any access tokens and credentials that are required to connect to the provider. Any connectors based on this template can then share the access credentials and will not have to explicitly connect to the provider. For example, in the case of an SQL data provider then the connection template will store the database server name and the login username and password, while any connectors that are based on this template will only have to store the table name or SQL query. Likewise, for a REST data provider then the connection template will connect to the authorization server and refresh the OAuth2 access token as required so that the connectors can send requests to the corresponding API.
Also, there is a powerful searching ability introduced to search for specific connection templates and connectors. To search, either enter a connector Name, Connection Template Name, Connection Template ID, Connector Type, Description, Tags, Last Updated By Name, preRequestScript, postRequestScript, customAuthScript, keywords enableStreams, disableStreams, text in custom function scripts or built-in function names. Additionally, for a HTTP connector you can search either by enableSslVerification, Auth Strategy, Base URL, URL, Method, Headers, request variables, params, payload or variable names used in the nodes.

The relationship between adapters, connection templates, connectors and datasets is illustrated in the diagram below.
