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- Click New/Javascript File.
- Enter the code below. Click Save As, and save as pjstips_02_3.js.
Code Block language js function app(req, res) { // When a PJS module is called as an Express Route (web service), two objects // are passed to the module. // 1. The "request" object, named as "req" here. You can use another name if you want. // 2. The "reponsereponsse" object, named as "res" here. You can use another name if you want. // Put this module in debug and call it from a browser. Then examine the "req" and "res" objects passed in, // to see all the good stuff they contain. var custno = req.querybody.custno; // input parm specified in asthe query"body" stringof paratemer, e.g. ?custno=1234the POST request var name = `Customer_name_${custno}`; // get output customer name from input customer number // In this example. we'll use the function res.json() to send back the "response" as a JSON object var data = // format the "response" as a JSON object like this { "custno": custno, "name" : name }; res.json(data); } exports.run = app;- In the Files tree, right-click on newly-created file pjstips_02_3.js, and click Properties. Mark the file as an Express Route, using HTTP method of "GET", with the Route Path as shown below.
- Now, the URL to call this PJS module is http://localhost:8081/run/pjstips/pjstips_02_03. Note that you can NOT simple put this URL on a browser to "call" the module. You'd need to use some tool (e.g. POSTMAN or PJS low-code module or PAPI) to send a POST request, with the input parms specified in the "body" of the request. We'll use this web service in the tips related to using low-code modules that consume a REST web service.You should see the response on as JSON as shown below on the browser.
