extract_json_values
Extract values from JSON columns using JsonPath.
A JsonPath is a string that uses a syntax similar to XPath to extract values from JSON objects. The syntax is described in the JsonPath Online Evaluator.
Usage
The following example shows how the step can be used in a recipe.
Extract all the cities from a column with Json values.
Inputs & Outputs
The following are the inputs expected by the step and the outputs it produces. These are generally
columns (ds.first_name), datasets (ds or ds[["first_name", "last_name"]]) or models (referenced
by name e.g. "churn-clf").
Configuration
The following parameters can be used to configure the behaviour of the step by including them in
a json object as the last “input” to the step, i.e. step(..., {"param": "value", ...}) -> (output).
JsonPath string used to extract the values from the JSON values of the columns.
Output column type. Select the desired type using a shortened yet fully specified name.
Values must be one of the following:
boolean category date number text url list[number] list[category] list[url]
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