Channel Reader

Mirth® Connect by NextGen Healthcare User Guide

JavaScript Reader

This source connector executes a custom user-defined JavaScript script on a specified schedule. This can be used in a wide variety of ways, such as calling out to external Java libraries or invoking a local OS shell script. You can return a message (or list of messages) to dispatch to the channel, or simply use the script as a scheduled job that doesn't necessarily produce messages. For example, you can use tools like ChannelUtil to programmatically start/stop/deploy channels from within the script. Supported property groups: Polling Settings Source Settings JavaScript Reader Return Values Parent topic: Source Connectors

Mirth® Connect by NextGen Healthcare User Guide

Source Map Variables

If this connector receives a message from a Channel Writer, the following source map variables will be available: Key Description sourceChannelId The unique ID of the channel that dispatched a message to the current channel. sourceMessageId The ID of the message from which the current message dispatch originated. sourceChannelIds If there are more than two channels in a Channel Writer -> Reader chain, this will be a List containing the IDs of all channels in the chain. sourceMessageIds If there are more than two channels in a Channel Writer -> Reader chain, this will be a List containing the IDs of all messages in the chain. Parent topic: Channel Reader

Mirth® Connect by NextGen Healthcare User Guide

Connector-Specific Properties

Every connector has its own custom set of properties. The properties you configure for a TCP Listener will be different from a Database Writer and so on. Here is a list of source and destination connectors supported by Mirth® Connect: Source Connectors Channel Reader DICOM Listener Database Reader File Reader HTTP Listener JMS Listener JavaScript Reader TCP Listener Web Service Listener Destination Connectors Channel Writer DICOM Sender Database Writer Document Writer File Writer HTTP Sender JMS Sender JavaScript Writer SMTP Sender TCP Sender Web Service Sender Additional connectors are made available as extensions: Email Reader Serial Connector NextGen Results CDR Connector FHIR Connector Interoperability Connector Suite Parent topic: Connector Components

Mirth® Connect by NextGen Healthcare User Guide

Batch Processing

Batch Processing allows a channel to receive a single message, but split it into multiple messages that each get processed through the channel. When using this along with a source connector that supports streaming (File Reader, TCP Listener in MLLP mode), batch processing has the added benefit of not having to read the entire file into memory all at once, but instead only one message at a time. For example with the File Reader and batch processing you can read in files that are gigabytes in size, without causing any memory issues for your Mirth Connect server. Data types that support batch processing will have a Batch Properties section in the source inbound data type properties. To enable batch processing, set Process Batch to Yes in the Source Settings. To change how an incoming message is split into multiple messages, look at the Batch Properties section of the source inbound data type you are using. For example, the Delimited Text Data Type has options to split by record delimiter,

Mirth® Connect by NextGen Healthcare User Guide

File Reader

This source connector reads files from a local or remote directory on a specified interval/time schedule. Several protocols are supported, including regular local file mode, FTP, SFTP, SMB, WebDAV, and Amazon S3. Files may be read in and converted to Base64, or converted to a message string using a specific character set encoding. After reading in files, the connector has options to either delete the original files, rename them, or move them to a separate directory. Additional options (like FTPS) are available with the SSL Manager extension. Supported property groups: Polling Settings Source Settings Item Name Default Value Description A Method file The basic method used to access files to be read in. Options include File (local filesystem or NFS / mapped share), FTP, SFTP, SMB, WebDAV, or Amazon S3. Once all necessary connection/directory information has been filled in before, use the Test Read button to attempt to actually connect and test the ability to read from the directory. B Ad

Mirth® Connect by NextGen Healthcare User Guide

Channel Writer

The Channel Writer is a connector that simply dispatches messages to other internal channels. This can be useful if you split your message workflow into multiple channels, where one sends to another. If no target channel is specified, the connector acts as a "sink" where no message dispatching is done. Note that a channel does not need to use a Channel Reader source for a Channel Writer to be able to send messages to it. The connector also has options to inject source map variables into the downstream message of the target channel. Supported property groups: Destination Settings Item Name Default Value Description A Channel Id <None> The unique ID of the target channel to send messages to. This may be a hard-coded ID, or may be a Velocity Variable Replacement. Use the drop-down menu to the right to quickly select a particular channel. If <None> is selected, the destination will act as a "sink" where messages are not dispatched anywhere. B Message Metadata The map variables entered here

Channel Reader

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