HL7 Listener
Category: Trigger Standards: HIPAA · HL7 v2.x standard
Receives HL7 v2.x messages via MLLP protocol
What this node does
- MLLP protocol
- TLS encryption
- Message validation
- Auto-ACK
How to use
- In the Hydra Builder, open or create a workflow
- In the node palette on the left, find HL7 Listener under the Trigger category (or use the search bar)
- Drag the node onto the canvas
- Double-click the node to open its configuration dialog
- Fill in the required parameters (see Configuration below)
- Connect the HL7 Message output to the next node downstream
Inputs
This node has no inputs — it is a trigger node that starts a pipeline.
Outputs
| Port | Type | Description |
|---|---|---|
| HL7 Message | hl7-message | An HL7 v2.x message (ADT, ORU, ORM, etc.) |
Configuration
Open the configuration dialog by double-clicking the HL7 Listener node on the canvas.
| Parameter | What to enter |
|---|---|
version (2.3-2.8) | HL7 v2 version to accept: 2.3, 2.4, 2.5, 2.6, 2.7, or 2.8 |
port | TCP port to listen on for incoming connections (default: 2575 for MLLP) |
allowedMessageTypes | HL7 message types to accept, e.g. ADT^A01, ORU^R01 |
validation profile | HL7 validation profile to apply (leave empty to accept all valid messages) |
When to use this node
- Receive ADT events from hospital systems
- Listen for lab results
- Capture orders
Need help configuring this node?
Go to Settings → Connectors to set up the connection this node depends on, then reference the connector ID in the node configuration dialog.