Feature Request: Support for HTTP Server to Receive HL7 Messages

[soniharshil54]

I'm reaching out to see if there's any interest or plans in adding support for receiving HL7 messages over HTTP. I've got scenarios where receiving HL7 via HTTP POST would fit the bill perfectly.

[bluepuma77]

You can create your own http server, pass incoming HL7 message to parser, build and send back the ack.

import moment from 'moment';
import {Message, Parser} from 'simple-hl7';

function parseHL7(raw) {
    // parse HL7 message
    let parser = new Parser({ segmentSeperator: '\r' })
    let hl7 = parser.parse(raw);

    // fallback: process regular line break
    if (!hl7.getSegment('PV1')) {
        parser = new Parser({ segmentSeperator: '\n' })
        hl7 = parser.parse(raw);
    }

    //  build HL7 acknowledge message
    var ack = new Message(
        hl7.header.getField(3),
        hl7.header.getField(4),
        hl7.header.getField(1),
        hl7.header.getField(2),
        moment().format('YYYYMMDDHHmmss'),
        '',
        ['ACK', hl7.header.getComponent(7, 2), 'ACK'],
        'ACK' + moment().format('YYYYMMDDHHmmss'),
        'P',
        hl7.header.getField(10),
    );
    ack.addSegment("MSA", "AA", hl7.header.getField(8))

    return ack.toString()+'\n'
}