PROC HTTP - Macro loop or any other methods!

[Kaveh]

I'm new to this concept and I was wondering if you could help me. 

I have successfully used PROC HTTP to call data from a website. the problem is that I'm only able to call single Portfolio id each time (this is how the API is set up). 

I was wondering if you could help me change this code to use hypothetical Table A column B values (all 150+ values) to feed into the below code as portfolio ids and eventually create a table with results from using these portfolio ids. 

%let AccessKey =/*Enter Token id Here*/;
%let Portfoli_id =/*Enter Portfolio id Here*/;
proc http
url="url/&Portfoli_id"

method="GET" out=FS;
headers
"Authorization"="Bearer &AccessKey.";
run;

libname PP Json fileref=FS;
proc contents data=PP._all_;
run;

Really appreciate your help!

[bobpep212]

I've done something similar for posting to an API one at a time. Instead of using %let to set your variables, use data null with call symputx. You'll need a count variable to know how many times to loop. Use that count number to know which observation in your dataset to grab. Hope this is helpful. 

/*After the dataset is created, figure out the count you'll need to loop through*/ 
data _null_; 
call symputx('cnt',&sysnobs.); 
run; 

/*compile APILoop macro*/ 
%macro APILoop(); 

%do i=1 %to &cnt.;  
/*Create needed variables you'll pass into the loop - one at a time*/
data _null_;
set table_A (firstobs=&i. obs=&i.);
call symputx('AccessKey',AccessKey);
call symputx('Portfoli_id',Portfoli_id);
run;

/*Now you have the variables created to put into your proc http*/
proc http; 
/*insert code here*/
run;
%end;
%mend;

/*Run Loop*/
%APILoop()