ASP.NetCore3.1 and OData

Question

I am working with ASP.NET Core3.1 and OData.The sisue I have is as follows:

Startup.cs added:

public void ConfigureServices(IServiceCollection services)

{

services.AddOData();

}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)

{

app.UseEndpoints(endpoints =>

{

endpoints.MapHealthChecks("/health");

endpoints.MapControllers();

endpoints.Select().Filter().OrderBy().Expand().Count().MaxTop(50);

endpoints.MapODataRoute("odata", "odata", GetEdmModel(app.ApplicationServices));

});

}

private IEdmModel GetEdmModel(IServiceProvider serviceProvider)

{

var builder = new ODataConventionModelBuilder(serviceProvider);

builder.EntitySet<TestController>("testcontrollers");

return builder.GetEdmModel();

}

However when accessing odata points I always get 404 error.

Sachin Singh · Answer

Try to configure as shown below public class Startup { public Startup(IConfiguration configuration) { Configuration = configuration; } public IConfiguration Configuration { get; } public void ConfigureServices(IServiceCollection services) { services.AddControllers(); services.AddOData(); } public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); endpoints.Select().Filter().OrderBy().Count().MaxTop( 10 ); endpoints.MapODataRoute( "odata" , "odata" , GetEdmModel()); }); } private IEdmModel GetEdmModel() { var odataBuilder = new ODataConventionModelBuilder(); odataBuilder.EntitySet ( "Test" ); return odataBuilder.GetEdmModel(); } }