Converter

Convert data formats in your Fastn flow, such as JSON to CSV, XML, or Parquet. Prepare data for exports, analytics, or downstream API integrations.

The Converter component transforms data from one file format to another — for example, JSON to CSV, JSON to XML, or JSON to Parquet. Use it when you need to prepare data for exports, analytics pipelines, or downstream APIs that expect a specific format. Unlike the Data Mapper, which restructures fields within the same format, the Converter changes the serialization format of the entire dataset.

Example definition

StepName = convertInput  
ConversionType = JSON_PARQUET  
Source = {{input}}  
Settings = Default  

This means:

• The step is named convertInput.

• Input data ({{input}}) will be taken from the previous step.

• Conversion type is set to JSON_PARQUET.