First the technology. RESTful calls are actually pretty cool. It is neat to simply send off a GET or POST message and extract or update the server with vital information. I am not going to write up a long article, well at this point anyway, describing RESTful calls.<\/p>\n
Due to the flexibility and function of these calls there are a lot of tools and systems that make use of them.\u00a0One such tool is Postman. This is a perfect tool for testing your RESTful calls on your servers. This might be during testing or it could be during development.<\/p>\n
I was tasked with setting up some performance tests in another tool and my specification was a Postman script. You cannot really ask for a better specification than something that almost works like a finished program.<\/p>\n
The only problem was that I had to run a few different steps and one of the steps required value from the previous step. This is actually almost trivial in Postman but the problem was I needed both the name and the value.\u00a0 The source code that I had needed parse looked like this.<\/p>\n
<input type=\"hidden\" name=\"xsrf_CppTDEqKjryFYA9agpaloQ\" value=\"LugLnMWKGWyiZD64jwys4g\"><\/pre>\nI need to pass back a variable called\u00a0xsrf_CppTDEqKjryFYA9agpaloQ<\/strong> with the value\u00a0LugLnMWKGWyiZD64jwys4g<\/strong> in the next postman step.<\/p>\n
The good news is that postman uses java script as its scripting language.\u00a0 This allows you to do plenty of interesting things when testing response values.\u00a0 In my case I decided to use java script to parse the login page that is retrieved and then essentially an inelegant\u00a0 search through the text for these values.<\/p>\n
\nmysplits=data.split(” “);<\/p>\nsearchname=’name=”xsrf’;
\nvar idx;
\nvar valueidx=-1;
\nvar cnt=mysplits.length;<\/p>\nfor (idx=0; idx < cnt; idx++)
\n{
\n\/\/console.log(mysplits[idx]);
\nvar search = mysplits[idx].substr(0,10);
\nif (search == searchname)
\n{
\nvar pieces=mysplits[idx].split(“\\””);
\nconsole.log(“found”);
\nconsole.log(search);
\nconsole.log(pieces[1]);
\nvalueidx=idx+1;
\n}<\/p>\nif (valueidx == idx)
\n{
\nvar pieces=mysplits[idx].split(“\\””);
\nconsole.log(pieces[1]);
\n}
\n}
\n<\/p>\nThis isn’t the type of code you would want to use for any production solutions but it is a fun little hack to assist during development.<\/p>\n","protected":false},"excerpt":{"rendered":"
First the technology. RESTful calls are actually pretty cool. It is neat to simply send off a GET or POST message and extract or update the server with vital information. I am not going to write up a long article, … Continue reading