*OMIT not supported

[GajenderI]

What if the RPG program has a *omit param and I want to specify that in the addParm and also not pass any value to it.

Describe the solution you'd like
omit should be supported

Describe alternatives you've considered
None

Additional context
In the XMLSERVICE documentation we can see that a param option io can have values 'in|out|both|omit' but the itoolkit document says io (string()) – Valid values are in, out, or both.
https://nodejs-itoolkit.readthedocs.io/en/latest/ProgramCall.html#parameterConfig
https://xmlservice.readthedocs.io/en/latest/functions.html#pgm

[alanseiden]

We will look into *OMIT since XMLSERVICE supports it.

[abmusse]

Yes the documentation needs to be updated to include *OMIT as a valid option.
As the code is written passing *omit as io should still get passed through though.

nodejs-itoolkit/lib/ProgramCall.js

Line 141 in c4f5e29

if (parameter.io) { this.xml += ` io='${parameter.io}'`; }

[GajenderI]

@alanseiden Thank you for considering this.
@abmusse Thank you for the pointing that out, I did try this but was getting some unexpected error. It was months ago so dont remember that exactly but I was not able to make this work.

[alanseiden]

@GajenderI Please try omit again, if you still have your program available, and let us know how it goes. If you get an error, please tell us the specific error. We may still change the documentation to allow the omit option.

[alanseiden]

We have created a PR to update the documentation after testing 'omit' in XMLSERVICE: #346

[GajenderI]

@alanseiden please have a look at the xml going in, what should I send in place of data if I want the parameter to be omitted?
the program to be called has PR

dcl-pi mypgm;                           
 input          Char(15) options(*omit); 
 output         Char(16);                    
end-pi;                                      

<?xml version='1.0'?><xmlservice><pgm name="simpleomit" lib="mylib"><parm name="input" io="omit"><data type="15A">?</data></parm><parm name="output"><data type="16A"></data></parm></pgm></xmlservice>
`

[alanseiden]

@GajenderI here is what we found so far:

• the ZZOMIT unit test works correctly.
• Your program test does not fully work (we replicated your results). The parameter comes in blank (good), but is not equal to a null pointer (bad).

The difference may be that ZZOMIT is a service program. We are looking at why this may matter. XMLSERVICE has a different code path for service program procedures.

@GajenderI If you have time, try making your program into a service program with a procedure having the *OMIT and let us know if that makes a difference.

[alanseiden]

We should create a new issue about your specific test rather than adding to this closed issue that was about documentation.

[sagartyagi121]

Thank you very much @alanseiden for taking the effort. I will test it by making it a service program and let me know how else I can help in this.

[sagartyagi121]

@amagid please have a look at this issue.