Liquid - Passing parameter to webtemplate

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Posted on by msftheavyuser2

Hi All,

I'm struggling with a simple requirement and hopefully someone went through it before and can help me out.

I have a web template called "Return Contact" that serves me as a server function, in it I simple have a fetchxml that returns me a contact based on a parameter dn. Everything works fine when I pass the parameter as a simple string like this:

var result = {% include 'Return Contact' dn:'123' %}

</script>

But my problem is, the parameter is within a variable, so I need to do something like this:

var myVar = '123';

var result = {% include 'Return Contact' dn:myVar %}

</script>

But for some reason it doesn't work, I simply need to pass a parameter that is held within a JS variable to my web template. Thoughts? Thanks

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Power Apps portals

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msftheavyuser2 6 on at

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I realize now that liquid code renders before JS code, so my JS variable doesn't get rendered in time. Is there anyway for me to send information that is in the client to the server? I need to send a value that is processed in my JS code to my web template

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AndKanPA 214 on at

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Maybe https://www.engineeredcode.com/blog/power-apps-portals-where-you-put-your-javascript-matters is helpfully?
Or https://www.engineeredcode.com/?s=javascript&post_type=post

Greetings,
AndKan.

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msftheavyuser2 6 on at

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Thanks, but it didn't help. My problem is that I need to run a javascript code before the liquid code, can I do this?

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oliver.rodrigues 9,368 Most Valuable Professional on at

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Hi, can you explain where the DN variable is coming from?

are you for example looping through an entity list and getting the contact details?

also when are you triggering that code? is it on page load?

is contact you want to load the current logged in contact? or a different contact?

this might help us giving you alternatives of what you are trying to achieve

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msftheavyuser2 6 on at

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Hi @OliverRodrigues ,

This is my scenario:
A unauthenticated user goes to my portal page with an encrypted url ie:
https://myorg.powerappsportals.com/mypage/?U2FsdGVkX1/e312Vuj9s
Then I get the URL parameters and I decrypt it using a JS library and I store the content in a variable (myVar).
The decrypted contains the ID of my unauthenticated user (Custom Contact Entity) that I then try to pass to my web template

<script>
var myVar = JsLibrary.Decrypt(URL, "secret");
var result = {% include 'Return Contact' dn:myVar %}
</script>

The code is in the HTML field of the localized content page

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oliver.rodrigues 9,368 Most Valuable Professional on at

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okay, in this case I actually don't think you need JS code.. you can achieve that all via Liquid

if this is happening on the onload of the page, you can create your own Web Template, read the query string parameter and include call your "Return Contact" template

you can read the parameter via liquid using something like the following:

{% assign id = request.params['id'] %}

just wondering as well.. are you trying to achieve something like an authentication process? what do you do after decrypting and return the contact details? are the users logging in to your portal?

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OOlashyn 3,496 Most Valuable Professional on at

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Hi @msftheavyuser2 ,

The previous reply from @OliverRodrigues should help you. However, if you need to obtain data dynamically from javascript you can check these articles from Colin Vermander (first and second). In short, you use your web page as some sort of web API to retrieve data.

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