add results of macro variable addition to json returned by stored process

[csetzkorn]

I use this code:

%let Result = %sysevalf(&Number1. + &Number2.); 

%let old = %sysfunc(stpsrv_header(Content-type, application/json));
%let old = %sysfunc(stpsrv_header(Access-Control-Allow-Origin, *));

data _null_;
     file _webout;
     put '{ "name":"John1", "age":31, "city":"New York" }'; 
     run;

Here the Number1 and Number2 macro variables come from prompts and should ultimately come from query strings. How can I add the Result macro variable to the JSON file to achieve something like this:

{ "name":"John1", "age":31, "city":"New York", "Result":"333" }

ff

[Astounding · Accepted solution]

Would it be acceptable to use single quotes instead of double quotes?

{ 'name':'John1', 'age':31, 'city':'New York', 'Result':'333' }

If so, the PUT statement could use double quotes on the outside, and the end might look like:

put "{ ..................... 'Result':'&result' }"