Body
HL7 message data. For JSON: use "message" field. For text/plain: send raw HL7. For form-encoded: include message field.
HL7 message content - the primary way to send HL7 data
Form field (legacy support)
Interface identifier (legacy support)
Login user (legacy support)
Login password (legacy support)
Base64 encoded HL7 message (legacy support)
Response
HL7 ACK message