Parameterization of variables in beforeRender and afterRender script

jcvilladiegoc

It is possible to define and send parameters from the template to the scripts that have functions berofeRender and afterRender, to send a parameter get, or path variable, and obtain different results, and thus in this way reuse the code in different templates by consulting the same api , and only change the value of the parameter in the template.

var getRequest = require('request').get

function beforeRender(req, res, done) {
    getRequest('http://misitioweb/v1/data/user/', function (err, resp, body) {
        if (err) {
            return done(err)
        }
        
        req.data.user = JSON.parse(body).data
        done()
    }) 
}

jan_blaha

You can send the parametr in the API call and then reach it for example on req.options or req.data.
This is typical scenario.

I am not sure I understand what you mean with "sending parameter from the template".

jcvilladiegoc

The idea is to reuse a rest service, for 'n' template, but for this it is necessary to receive a parameter, in rest services I can obtain data from a certain user, and thus fill in the corresponding data in each template, each template represents a user and this pdf template, let's say a report is sent by email every client every so often through a shedule. In this way avoid generating a static template per client, but cunsumir the information of a rest service, just changing a parameter.

Stan Banes

I have same question.

The example for sending a report via email uses a hard-coded recipient.

In the beforeRender section, the req variable contains whatever data is needed to generate the report.

I would just like to include the recipient email address in that req variable so that the afterRender function can send the message to the desired recipient.

bjrmatos

In the beforeRender section, the req variable contains whatever data is needed to generate the report.
I would just like to include the recipient email address in that req variable so that the afterRender function can send the message to the desired recipient.

hmm i think you can just set that email in the beforeRender script, then you can use it normally in the afterRender script.

async function beforeRender (req, res) {
  // let't say you get data from another server here
  const fromServer = await fetch(...)
  req.data.payload = fromServer.data
  req.data.recipientEmail = fromServer.recipientEmail
}

async function afterRender (req, res) {
  // the code to send email here just need to read req.data.recipientEmail
}

the above should work, is not working? i'm not sure why the above won't be enough to stop relaying on hard-coded value for the email. if i'm missing something let me know.

Stan Banes

What you say sure makes sense and what I am doing. However, the value of req is different between the two calls.

As I was typing the above line, I realize that for some reason, I was modifying the req.data field in my beforeRender call, which screwed up the value.

Fixed that and all is working as it should, my bad :(

bjrmatos

haha yes, sometimes it is easy to miss that, great that it is working now 👏👏👏