External Request Processing Route

The route receives an order-select or an order-sign CDS hook and submits a request to an external Coverage Requirement Discovery (CRD) service. The corresponding route component converts the resulting data into a JSON-formatted CDS card with a list of coverage terms.

Route Structure

Route Components Description

Component Name	Component Type	Description
order-select	RESTful Web Service Inbound	Receives a request in the form of an order-select CDS hook.
order-sign	RESTful Web Service Inbound	Receives a request in the form of an order-sign CDS hook.
HTTP	Router	Checks the request type.
405 Method Not Allowed	RESTful Web Service Outbound	Sends back an error message that the request type used is not allowed.
Get code	Groovy	Extracts the medication code from the hook.
Request to outer Service	REST Client	Sends a request to an external Coverage Requirement Discovery (CRD) service (emulated by the Da Vinci 3 CRD emulation route) and passes the medication code as a query parameter.
Response 200?	Router	Checks to see if the requested data has been successfully retrieved from the FHIR Server.
Convert to CDS Cards	Groovy	Converts the data into CDS Cards.
503 Service Unavailable	RESTful Web Service Outbound	Sends back a message that an error has occurred while performing a call to an external service to get the requested data.
Response	RESTful Web Service Outbound	Returns a set of JSON-formatted CDS cards with the requested information.
Any Error	Error Channel Inbound	Triggers the 500 Internal Server Error to send out an internal server error HTTP response when there are processing errors.
500 Internal Server Error	RESTful Web Service Outbound	Sends out an internal server error message.
Errors	File System Inbound	Saves all the processing error reports to the file system.

EMR Integration

To integrate your custom EMR with the Da Vinci 3-4 CRD and MRP profile, on the profile's Environment tab, in the EmrResourceUrl environment property, enter the URL through which the profile can access your EMR system.

In your EMR configuration, provide the following endpoints:

For the RESTful service URL, use the following: http\://stqasuse15\:9064/rest
For initialization of the order-select request (defaulted or manually selected order details), use the following: http\://stqasuse15\:9064/rest/cds-services/order-select
For initialization of the order-sign request (request for orders for medications, procedures, labs and other orders), use the following: http\://stqasuse15\:9064/rest/cds-services/order-sign
For initialization the request with supported FHIR resources, use the following: http\://stqasuse15\:9064/rest/measure-mrp/$data-requirements
For initialization the request with information on the medication prescribed, use the following: http\://stqasuse15\:9064/rest/measure-mrp/$submit-data