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28.53 FHIR to HL7 v2.x Mapper Script 28.55 HTTP Access Log

28.54HL7 v2.x MLLP Sender

The HL7 v2.x MLLP Sender configuration category includes the following configurable options:

Transport Protocol
HL7 v2.x Destination Host
HL7 v2.x Destination Port
Request Path
Send Timeout (millis)
Map Identifiers using NamingSystem
Use Persisted Message Headers
Retry message on NAK
Delay Between Failed Deliveries (millis)

28.54.1Property: Transport Protocol

Property Name	Transport Protocol
Property Key
Property Type	ENUM
Values	`MLLP_OVER_TCP` `HL7_OVER_HTTP`
Description	Specifies the transport to use when sending HL7 v2.x messages. Note that most existing systems expect the MLLP protocol unless specifically configured otherwise.
Default Value	`MLLP_OVER_TCP`
Example Property	`module.[MODULE_ID].config.transport = MLLP_OVER_TCP`

28.54.2Property: HL7 v2.x Destination Host

Property Name	HL7 v2.x Destination Host
Property Key
Property Type	STRING
Description	The TCP hostname to which this module will transmit.
Default Value	(no default)
Example Property	`module.[MODULE_ID].config.host =`

28.54.3Property: HL7 v2.x Destination Port

Property Name	HL7 v2.x Destination Port
Property Key
Property Type	POSITIVE_INTEGER
Description	The TCP port to which this module will transmit.
Default Value	(no default)
Example Property	`module.[MODULE_ID].config.port =`

28.54.4Property: Request Path

Property Name	Request Path
Property Key
Property Type	STRING
Description	The path to transmit messages to. Note that this applies only to HTTP transports and will be ignored for MLLP transports.
Default Value	`/`
Example Property	`module.[MODULE_ID].config.path = /`

28.54.5Property: Send Timeout (millis)

Property Name	Send Timeout (millis)
Property Key
Property Type	POSITIVE_INTEGER
Description	The number of milliseconds to wait for a response before timing out.
Default Value	`10000`
Example Property	`module.[MODULE_ID].config.send_timeout.millis = 10000`

28.54.6Property: Map Identifiers using NamingSystem

Property Name	Map Identifiers using NamingSystem
Property Key
Property Type	BOOLEAN
Description	If enabled, the FHIR -> HL7 v2.x mapper will attempt to use NamingSystem resources stored in the repository when mapping identifiers. See NamingSystem Mapping for information on this process.
Default Value	`false`
Example Property	`module.[MODULE_ID].config.map_identifiers_using_namingsystem = false`

28.54.7Property: Use Persisted Message Headers

Property Name	Use Persisted Message Headers
Property Key
Property Type	BOOLEAN
Description	If enabled, this setting causes the FHIR -> HL7 v2.x mapper to attempt to load a MessageHeader resource from FHIR Storage for use in populating the MSH segment on the generated HL7 v2.x message.
Default Value	`false`
Example Property	`module.[MODULE_ID].config.use_persisted_message_headers = false`

28.54.8Property: Retry message on NAK

Property Name	Retry message on NAK
Property Key
Property Type	BOOLEAN
Description	If the receiving system responds with a non-positive acknowledgement message (e.g an ACK message with an `AE` response code), should we attempt to redeliver the message until we are successful?
Default Value	`true`
Example Property	`module.[MODULE_ID].config.retry_message_on_nak = true`

28.54.9Property: Delay Between Failed Deliveries (millis)

Property Name	Delay Between Failed Deliveries (millis)
Property Key
Property Type	NON_NEGATIVE_INTEGER
Description	If set to a number above 0, sets the minimum number of milliseconds to wait after a failed delivery attempt before trying again.
Default Value	`10000`
Example Property	`module.[MODULE_ID].config.delay_between_failed_deliveries.millis = 10000`

28.53 FHIR to HL7 v2.x Mapper Script 28.55 HTTP Access Log