DataSource class is very similar to the
Account class described above. Subclasses of this base class include a
Meta inner-class, field information defining the underlying data source (if required) defined in a
Schema inner-class, and a single to handle the retrieval of data:
identifier = "cards"
name = "Cards"
tags = ["Kanban", "Cards", ]
description = "List of cards"
filter = TrelloCardSourceFilters
id = TextField(description="Card ID")
name = TextField(name="Name", description="Name of the card")
def get_data(cls, account, source_filter):
filter object within the
DataSource.Meta class refers the SDK to the
vizydrop.sdk.source.SourceFilter subclass that contains and handles filter information (see below). The
SourceSchema inner-class contains all
vizydrop.fields that define the underlying data schema. This information is not required; if it is not provided then Vizydrop will attempt to automatically determine the source schema based on the data provided by the TPA.
get_data class method is the single most important function in an entire TPA. This is the function that actually performs the gathering of data from the datasource represented by the TPA. The
source_filter arguments will be instances of the
SourceFilter subclasses defined elsewhere in your application.