CODEWITHSUNDEEP
asp.net-coreblazorblazor-server-sidehttpcontext.net-8.0
Arkinala
Arkinala

Reputation: 1

Blazor - Read a cookie value in pre-rendering and OnInitializeAsync

I have a Blazor Server .NET 8 web application that uses/calls a DLL for various tasks including retrieving and reading the value of a cookie. Basically, the DLL used HttpContext, which is not always available in Blazor.

Thank you, Max

I therefore tried to use JSRuntime, but I have to retrieve the cookie in the page initialization, so this solution isn't possible.

I tried using HttpContext only when it's available (pre-rendered) and saving a static variable from a class in my DLL, hoping that it would persist too, but that didn't work.

I also tried using the "Scoped" feature, without success.

I can't see any other solution at the moment... help!

The crazy thing is that I'm able to access my cookie during pre-rendering, my DLL is doing its job well. Then on the second page execution, the HttpContext disappears and I don't know how to retrieve the cookie.

Upvotes: 0

Views: 228

Answers (1)

Qiang Fu
Qiang Fu

Reputation: 8616

HttpContext is always available using IHttpContextAccessor in blazor.

builder.Services.AddHttpContextAccessor();

@inject IHttpContextAccessor accessor

@code{
    protected override void OnInitialized(){
        var mycookies = accessor.HttpContext.Request.Cookies;
    }
}

Upvotes: 0

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