nxcals.api.extraction.data.builders.DataFrame.toJSON
- DataFrame.toJSON(use_unicode: bool = True) RDD[str]
Converts a
DataFrame
into aRDD
of string.Each row is turned into a JSON document as one element in the returned RDD.
New in version 1.3.0.
- Parameters:
use_unicode (bool, optional, default True) – Whether to convert to unicode or not.
- Return type:
RDD
Examples
>>> df = spark.createDataFrame([(2, "Alice"), (5, "Bob")], schema=["age", "name"]) >>> df.toJSON().first() '{"age":2,"name":"Alice"}'