Blazor webassembly: detect from which site the user came from

user_9161513 0
Viewed 665

I am developing a Blazor Webassembly application. Based on the page the user came from, I should show different content. For example, the app should show Content A when the user came from Facebook and Content B otherwise. How can this feature achieved?

I red that one could do this by checking the referrer property of the request header, but I don't know how to access the http request on a razor page.

referer webassembly blazor request http
1 Answers

You can use javascript for this.

1) Create a javascript file on your blazor project (the front-end) with the following content:

function getReferrer() {
    return document.referrer;
}

2) Add the previous file to your index.html file:

<script src="JavaScript.js"></script>

3) Consume the function using the IJSRuntime service:

var referrer = await js.InvokeAsync<string>("getReferrer");

This should get you the referrer.

user_11088950
Related