Data Transformations and Filtering in Mirth Connect: Best Practices and Use Cases

One of Mirth Connect’s most powerful features is its ability to transform and filter data. With transformers and filters, you can adapt the messages entering and exiting systems to meet the target system’s requirements. 


Types of transformers:

  • Mapper: Maps fields between incoming and outgoing messages.
  • XSLT: Uses XSLT transformations to modify XML messages.
  • JavaScript: Uses custom scripts to transform messages.

Filters: 

  • Internal rule: Creates graphical rules to filter messages.
  • JavaScript: Writes custom scripts to define conditions.

These tools allow integrations to be customized for specific cases, such as adapting HL7 messages or transforming XML data to JSON.