The context is an object (wizata_dsapi.Context) initiated once a pipeline execution starts, and terminated when it stops. The context is used to pass to each steps a maximum of known information and data about the pipeline itself but not only.

Properties

Properties is a dictionary initiated when a pipeline starts. It is unique along its full execution and accessible by each step. It is therefore very useful to pass information between different steps that cannot be stored inside a well formatted time-series data frame.

Properties are also passed as parameters when execution starts. Either from code, or manually by user on UI when asks to fulfil pre-defined variables.

Properties contains automatically all template properties values of the registration used when executed the pipeline.

Therefore it is best practice to not use name of a template property for your custom properties.

Properties can also be used to dynamically configure a step (e.g. model ID, df columns mapping to write, …)

Properties are accessible within a script (including for modelling and plotting) by using the wizata_dsapi.Context attribute properties.

Datapoints

All Query step executed before accessing the context will set on the datapoints attribute of the complete definition of the wizata_dsapi.Datapoint. This allows you to access to information such as unit, business type, min, max, ... or any extra properties of your Data Point to parametrize your pipeline script.