Rendering with Dynamic data in single executable file

arpa-dev

Is there any way to render the HTML template with dynamic json data without storing it in .JSON File for single executable JSReport File?

jan_blaha

You could use jsreport custom script to prepare data programmatically and load it from environment variable for example.
https://jsreport.net/learn/scripts

arpa-dev

I tried it, but not working. My html file looks like,

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function beforeRender(req, res, done) {
            // merge in some values for later use in engine
            // and preserve other values which are already in
            req.data = Object.assign({}, req.data, {foo: "foo"})
            done()
        }
    </script>
    <%= foo %>
</body>
</html>

The error page is,

arpa@ubuntu:~/Documents/Cape/jsreport$ ./jsreport render  --template.engine=ejs  --template.recipe=chrome-pdf  --template.content=./../static/index1.html  --out=./../output/pallet.pdf
starting rendering process..
rendering has finished with errors:
A critical error occurred while trying to execute the render command (2). Error while executing templating engine. ejs:18
    16|         }
    17|     </script>
 >> 18|     <%= foo %>
    19| </body>
    20| </html>

foo is not defined (1). 
caused by error (2):
-> stack
Error:
    at onCriticalError (/snapshot/jsreport/node_modules/jsreport-cli/lib/commands/render.js:302:19)
    at /snapshot/jsreport/node_modules/jsreport-cli/lib/commands/render.js:298:12
caused by error (1):
-> meta = {"cause":{},"isOperational":true,"weak":true,"logged":true}
-> stack
ReferenceError: ejs:18
    16|         }
    17|     </script>
 >> 18|     <%= foo %>
    19| </body>
    20| </html>

foo is not defined
    at eval (eval at compile (/home/arpa/Documents/Cape/jsreport/node_modules/ejs/lib/ejs.js:633:12), <anonymous>:9:26)
    at returnedFn (/home/arpa/Documents/Cape/jsreport/node_modules/ejs/lib/ejs.js:668:17)
    at /home/arpa/Documents/Cape/jsreport/node_modules/jsreport-ejs/lib/ejsEngine.js:10:12
    at Object.base.apply (/snapshot/jsreport/node_modules/vm2/lib/contextify.js:469:32)
    at evaluate-template-engine.js:1:64
    at Script.runInContext (vm.js:133:20)
    at VM.run (/snapshot/jsreport/node_modules/vm2/lib/main.js:219:62)
    at run (/snapshot/jsreport/node_modules/jsreport-core/lib/render/safeSandbox.js:171:19)
    at module.exports (/snapshot/jsreport/node_modules/jsreport-core/lib/render/engineScript.js:268:5)
    at Object.execute (/snapshot/jsreport/node_modules/script-manager/lib/in-process.js:31:34)
    at Object.tryCatcher (/snapshot/jsreport/node_modules/bluebird/js/release/util.js:16:23)
    at Object.ret [as executeAsync] (eval at makeNodePromisifiedEval (/snapshot/jsreport/node_modules/bluebird/js/release/promisify.js:184:12), <anonymous>:11:39)
    at executeScript (/snapshot/jsreport/node_modules/jsreport-core/lib/util/executeScript.js:41:49)
    at Reporter.executeScript (/snapshot/jsreport/node_modules/jsreport-core/lib/reporter.js:343:12)
    at invokeRender (/snapshot/jsreport/node_modules/jsreport-core/lib/render/render.js:60:36)
    at /snapshot/jsreport/node_modules/jsreport-core/lib/render/render.js:150:11
    at async startRender (/snapshot/jsreport/node_modules/jsreport-cli/lib/commands/render.js:357:17)
    at async /snapshot/jsreport/node_modules/jsreport-cli/lib/commands/render.js:291:13
    at async Commander.executeCommand (/snapshot/jsreport/node_modules/jsreport-cli/lib/commander.js:242:22)

I also tried with handlebar templates. It doesn't show error but there is no text [plain white page] in the generated pdf.