I get the following error while calling an api in my Blazor application: Following is the code where the error is pointing: And following is the calling api where request is made: What went wrong here? Any suggestions? Thanks, Puneet Chandiok

Please try using an absolute url such like http(s)://<hostname>/api/employees instead of relative url api/employees . Please note that if the api is located at a cross domain the server of the api must have CORS functionality.

Response status code does not indicate success: 404 (Not Found)

Puneet Chandiok 20

I get the following error while calling an api in my Blazor application:

User's image

Following is the code where the error is pointing:

User's image

And following is the calling api where request is made:

User's image

What went wrong here? Any suggestions?

Thanks,

Puneet Chandiok

Accepted answer

SurferOnWww 3,696 Reputation points

2025-01-03T05:55:45.67+00:00

Please try using an absolute url such like http(s)://<hostname>/api/employees instead of relative url api/employees.

Please note that if the api is located at a cross domain the server of the api must have CORS functionality.
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1 person found this answer helpful.
Puneet Chandiok 20 Reputation points

2025-01-03T06:22:17.39+00:00

Thanks for the help.

One more thing, how do I include the base address of AddHttpClient in program.cs file? I'd included the following but its not working.

builder.Services.AddHttpClient<IEmployeeService, EmployeeService>(client =>

{

client.BaseAddress = new Uri("https://localhost:7009/");

});

SurferOnWww 3,696 Reputation points

2025-01-03T06:55:32.61+00:00

If you use client-side rendered (CSR) components in Blazor Web Apps or Blazor WebAssembly apps, the following Microsoft document will probably help:

Upload files to a server with client-side rendering (CSR)

"The client project (.Client) of a Blazor Web App must also register an HttpClient for HTTP POST requests to a backend web API controller. Confirm or add the following to the client project's Program file:"

builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
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Response status code does not indicate success: 404 (Not Found)

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