Parse MSA segment using Terser

[jorge-zapata-medstone]

Description:

Hi, im using Terser to parse a string message and when i reach the MSA segment it throws an error.

Does anyone have any ideas on how to parse this segment?

Error message

Error: NHapi.Base.HL7Exception: Can't process message of version '2.5
MSA' - version not recognized
   at NHapi.Base.Parser.ParserBase.Parse(String message, ParserOptions parserOptions)

Heres my message

MSH|^~\\&|RAMSOFT|SENDING FACILITY|RAMSOFT|RECEIVING FACILITY|20101223202939-0400||ACK|101|P|2.5||||||||
MSA|AA|104|Request was Successfully processed

And a code fragment

_hl7Message = pipeParser.Parse(hl7Message.messageContent);
_hl7Terser = new Terser(_hl7Message);

[milkshakeuk]

Hi @jorge-zapata-medstone I can't replicate, I have created a dotnet fiddle showing it working here.

using System;
using NHapi.Base.Parser;
using NHapi.Base.Util;

var newline = '\r';
// adding new line into the string on linux, not needed on windows
var message = $"""
	MSH|^~\&|RAMSOFT|SENDING FACILITY|RAMSOFT|RECEIVING FACILITY|20101223202939-0400||ACK|101|P|2.5||||||||{newLine}
	MSA|AA|104|Request was Successfully processed{newLine}
	""";
		
var pipeParser = new PipeParser();
var parsed = pipeParser.Parse(message);
var terser = new Terser(parsed);

Console.WriteLine($"MSH.1: {terser.Get("/MSA-1")}");
Console.WriteLine($"MSH.2: {terser.Get("/MSA-2")}");
Console.WriteLine($"MSH.3: {terser.Get("/MSA-3")}");

I suspect it could be your message has the wrong line endings. In the HL7 specification, the end of each segment (line) should end with a carriage return i.e. \r (or 0x0D in hexadecimal), if you're testing your code with just C# strings on Linux then the lines only end with a line feed i.e. \n (or 0x0A in hexadecimal) as opposed to \r\n on Windows.

[jorge-zapata-medstone]

thanks, i just tested it again and it was the \n line ending