The "msg" Object

Mirth® Connect by NextGen Healthcare User Guide

About Transformers

A transformer is the piece of a connector that modifies a message, converts a message from one format to another, and extracts pieces of the message for later use. It is configured on the Edit Transformer View within either the Source Tab or Destinations Tab within the Edit Channel View. A transformer has an inbound data type, and an outbound data type. These may be the same (e.g. HL7 v2.x to HL7 v2.x), or they could be different (e.g. HL7 v2.x to JSON). For additional information on data types, see About Data Types. A transformer is also comprised of multiple steps. Each transformer step modifies the message, extracts a piece of the message, or performs some other general task. The "msg" Object The "tmp" Object Response Transformers Transformer Step Types Parent topic: The Fundamentals of Mirth Connect

Mirth® Connect by NextGen Healthcare User Guide

Transformer

A transformer is the piece of a connector that modifies a message, converts a message from one format to another, and extracts pieces of the message for later use. It is configured on the Edit Transformer View within either the Source Tab or Destinations Tab within the Edit Channel View. For additional information, see About Transformers. All transformers have an inbound data type and an outbound data type used to determine how data is parsed and converted. For additional information on data types, see About Data Types Parent topic: Connector Components

Mirth® Connect by NextGen Healthcare User Guide

Edit Data Types

You can edit the properties for the destination transformer's inbound data type. A filter only has access to the inbound data type, while a transformer has access to both inbound and outbound data types. Additionally, when editing the destination transformer the inbound data type may not be changed, since it must remain the same as the source connector's outbound data type. However, you can still edit the properties for the destination transformer's inbound data type. An image of the Message Templates tab editing the inbound data type. When selecting the Properties button, a dialog opens allowing you to edit the various inbound or outbound properties for the data type. This is a subset of the view shown in the Set Data Types Window. For additional information, see About Data Types and Data Types. Parent topic: Message Templates Tab

Mirth® Connect by NextGen Healthcare User Guide

Data Types

This section describes the various common properties configurable across data types, and specific properties for each data type. For an introduction to data types in general, see About Data Types. Whether a data type is used as inbound or outbound, and whether it is tied to a source connector, destination connector, or destination response, affects what properties it needs. The following groups of properties may be displayed in the Set Data Types Window depending on the data type and context: Inbound Properties Outbound Properties Delimited Text Data Type DICOM Data Type EDI / X12 Data Type HL7 v2.x Data Type HL7 v3.x Data Type JSON Data Type NCPDP Data Type Raw Data Type XML Data Type Batch Processing JavaScript Batch Script

Mirth® Connect by NextGen Healthcare User Guide

About Data Types

A data type tells a filter / transformer how to parse a certain format. The inbound data type serializes the incoming raw data into its internal representation. Then the filter / transformer executes, possibly modifying this internal representation, or even completely overwriting it with a different internal representation. Finally, the outbound data type takes this transformed data and deserializes it into the proper outbound format (the encoded data) . For example, the HL7 v2.x data type serializes ER7 data from this: into this: In this case, the internal representation is XML, because, for HL7 v2.x, the message object you use or manipulate in a filter / transformer is an E4X XML object. However not all data types use XML for their internal representation. The JSON data type uses JSON as you might expect, and the object you use in a filter / transformer is a regular JavaScript Object. The Raw data type does no serialization or deserialization, so its internal representation is identi

Mirth® Connect by NextGen Healthcare User Guide

About Filters

The filter is the piece of a connector that decides whether a message should proceed to the next step or not. It is configured on the Edit Filter View within either the Source Tab or Destinations Tab within the Edit Channel View. A filter returns true or false. When the filter returns true, the message is said to have been accepted. When the filter returns false, the message is said to have been filtered. If the source connector filters out a message, it will not flow through the source transformer, and will not be processed by any of the destination connectors. If a destination connector filters out a message, it will not flow through the destination transformer, and will not be dispatched outbound by that destination connector. However other destinations may still process the message. A filter is comprised of multiple rules. Each rule is joined together with an operator, which can be AND or OR. For example a filter may look like this: Accept the message if: Rule 1 returns true OR Rul

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