stefh / blazor.downloadfilefast

Fast download from files to the browser from Blazor without any javascript library reference or dependency.

Hi 👋, I'm Stef Heyenrath

• 🔭 I’m currently working on WireMock.Net
• 🌱 I’m currently learning more Azure and Blazor

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blazor.downloadfilefast's Issues

When this nuget is added to my Blazor WASM project, the app does not load

As the title says. I've got a working Blazor WASM project using .Net 6 and VS 2022.
I download this nuget and then start the app and get the following exception on the console:

blazor.webassembly.js:1 System.AggregateException: One or more errors occurred. (Invalid JS call result type '3'.
Error: Invalid JS call result type '3'.
    at S (https://localhost:7171/_framework/blazor.webassembly.js:1:5038)
    at Object.invokeJSFromDotNet (https://localhost:7171/_framework/blazor.webassembly.js:1:3170)
    at Object.At [as invokeJSFromDotNet] (https://localhost:7171/_framework/blazor.webassembly.js:1:58414)
    at _mono_wasm_invoke_js_blazor (https://localhost:7171/_framework/dotnet.6.0.0.a1fp8dqnl9.js:1:193780)
    at wasm://wasm/00945abe:wasm-function[2588]:0x8065b
    at wasm://wasm/00945abe:wasm-function[2307]:0x689a7
    at wasm://wasm/00945abe:wasm-function[7015]:0x17bac4
    at wasm://wasm/00945abe:wasm-function[6830]:0x172bc5
    at wasm://wasm/00945abe:wasm-function[3524]:0xb47cc
    at wasm://wasm/00945abe:wasm-function[675]:0x16602)
 ---> Microsoft.JSInterop.JSException: Invalid JS call result type '3'.
Error: Invalid JS call result type '3'.
    at S (https://localhost:7171/_framework/blazor.webassembly.js:1:5038)
    at Object.invokeJSFromDotNet (https://localhost:7171/_framework/blazor.webassembly.js:1:3170)
    at Object.At [as invokeJSFromDotNet] (https://localhost:7171/_framework/blazor.webassembly.js:1:58414)
    at _mono_wasm_invoke_js_blazor (https://localhost:7171/_framework/dotnet.6.0.0.a1fp8dqnl9.js:1:193780)
    at wasm://wasm/00945abe:wasm-function[2588]:0x8065b
    at wasm://wasm/00945abe:wasm-function[2307]:0x689a7
    at wasm://wasm/00945abe:wasm-function[7015]:0x17bac4
    at wasm://wasm/00945abe:wasm-function[6830]:0x172bc5
    at wasm://wasm/00945abe:wasm-function[3524]:0xb47cc
    at wasm://wasm/00945abe:wasm-function[675]:0x16602
   at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeJS(String identifier, String argsJson, JSCallResultType resultType, Int64 targetInstanceId)
   at Microsoft.JSInterop.JSInProcessRuntime.Invoke[IJSVoidResult](String identifier, Int64 targetInstanceId, Object[] args)
   at Microsoft.JSInterop.JSInProcessRuntime.Invoke[IJSVoidResult](String identifier, Object[] args)
   at Microsoft.JSInterop.JSInProcessRuntimeExtensions.InvokeVoid(IJSInProcessRuntime jsRuntime, String identifier, Object[] args)
   at Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer.AttachRootComponentToBrowser(Int32 componentId, String domElementSelector)
   at Microsoft.AspNetCore.Components.RenderTree.WebRenderer.AddRootComponent(Type componentType, String domElementSelector)
   at Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer.AddComponentAsync(Type componentType, ParameterView parameters, String domElementSelector)
   at Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHost.<>c.<<RunAsyncCore>b__15_1>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHost.RunAsyncCore(CancellationToken cancellationToken, WebAssemblyCultureProvider cultureProvider)
   at Program.Main(String[] args) in Program.cs:line 41
   --- End of inner exception stack trace ---

Program.cs:line 41 is builder.Build().RunAsync()

I've tried it with an empty project as well, there it did not cause this issue. Unfortunately, I cannot share the project where the problem happened, but I'm happy to answer any questions.

Example of use with Wasm Core Hosted

Hi can you please add example how to use it with core hosted type of wasm ? It is all depending how you gonna get bytes from server side. Dont see any point to generate some random bytes on client side, it is pretty useless right ?

Regards

Download Excel file

Hi, can you please show me how to download excel or csv file from list of objects?
thanks a lot.

[Question] Blazor Server and Advantages over BlazorDownloadFile

Was curious if this should work when using Blazor Server? I saw mention of WebAssembly, but not Server in the README.

Also was wondering what advantages this library has over BlazorDownloadFile, or why you would choose one over the other?

Thanks!

Download from a URL

Just thought to get your feedback on this.

I am using the following code to create a byte[] from a (video) URL and then your component and it works just splendidly but do you see an issue with it or recommend that I use something else?

private async Task DownloadAsync(string path)
{
    using var client = new HttpClient();
    using var response = await client.GetAsync(path.Url);
    byte[] imageBytes = await response.Content.ReadAsByteArrayAsync().ConfigureAwait(false);
    await BlazorDownloadFileService.DownloadFileAsync("Video.mp4", imageBytes);
}

Would you do something else or is this just fine in WASM Blazor-land?

p.s
The video files can get pretty large.

e.s
Would be great to have a BlazorDownloadFileService.DownloadFileFromUrlAsync() method