How to Capture Part of Log as Macro Variable?

[Junyong]

Suppose I download a webpage via PROC HTTP.

filename myfile 'myfile.htm';

proc http url='https://www.macrotrends.net/stocks/charts/KO/cocacola/balance-sheet' out=myfile;
run;

Successful downloading returns NOTE: 200 OK as follows:

1   filename myfile 'myfile.htm';
2
3   proc http url='https://www.macrotrends.net/stocks/charts/KO/cocacola/balance-sheet' out=myfile;
4   run;

NOTE: 200 OK
NOTE: PROCEDURE HTTP used (Total process time):
      real time           0.05 seconds
      cpu time            0.00 seconds

Instead, unsuccessful downloading returns NOTE: 429 O as follows:

1   filename myfile 'myfile.htm';
2
3   proc http url='https://www.macrotrends.net/stocks/charts/KO/cocacola/balance-sheet' out=myfile;
4   run;

NOTE: 429 O
NOTE: PROCEDURE HTTP used (Total process time):
      real time           0.05 seconds
      cpu time            0.00 seconds

Is there any easy way to extract the "200" or "429" as a macro variable? Though I can output the log and infile it with symputx as follows, I wonder if there are easier ways than this.

filename myfile 'myfile.htm';

proc printto log='mylog.log';
run;

proc http url='https://www.macrotrends.net/stocks/charts/KO/cocacola/balance-sheet' out=myfile;
run;

proc printto;
run;

data _null_;
	infile 'mylog.log' truncover;
	input;
	if scan(lag3(_infile_),3)='http' then call symputx('note',scan(_infile_,2));
run;

%put &note;

data _null_;
	infile 'del mylog.log' pipe;
run;

Thanks for any helpful suggestions.

[Patrick · Accepted solution]

SAS will create and populate two automatic macro variables.

PROC HTTP Response Status Reporting