Create swagger UI versioning for controller and action using core 3.1

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.NET

C#3.5

.NET-Core

WebAPI2

hi,

I have tried the swagger ui versioning by using the .net core 3.1 with API 2.0. i have completed this scenario up to controller level. but i dont know how to do this versioning for controller Action...anyone can you please help me on this i have struggled past 3 days on this. help me to solve this......

What I have tried:

public void ConfigureServices(IServiceCollection services)
        {

            services.AddMvc();           
            services.AddApiVersioning(o =>
            {
                o.AssumeDefaultVersionWhenUnspecified = true;
                o.DefaultApiVersion = new ApiVersion(3, 0);
            });
            // Add this
            services.AddSwaggerGen(options =>
            {
                options.SwaggerDoc("v1",
                    new OpenApiInfo
                    {
                        Version = "v1",
                        Title = "v1 API",
                        Description = "v1 API Description",
                    });

                // Add a SwaggerDoc for v2 
                options.SwaggerDoc("v2",
                    new OpenApiInfo
                    {
                        Version = "v2",
                        Title = "v2 API",
                        Description = "v2 API Description"                       
                    });
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
       {

           app.UseSwagger();
           app.UseSwaggerUI(c =>
           {
               c.SwaggerEndpoint($"/swagger/v1/swagger.json", $"v1");
               c.SwaggerEndpoint($"/swagger/v2/swagger.json", $"v2");
               c.DefaultModelExpandDepth(0); // Hide Models section in swagger UI
               c.DefaultModelsExpandDepth(-1);
           });

}

[Route("api/v{version:ApiVersion}/[controller]")]
    [ApiController]
    [ApiVersion("1.0")]
    [ApiVersion("2.0")]
    public partial class xxxController : ControllerBase
    {

        private readonly IxxxDomainService _xxxService;
        private readonly IMapper _mapper;


        public xxxController(IxxxService studprofService, IMapper mapper)
        {
            this._mapper = mapper;
            this._xxxService = xxxService;
        }
        
        [ActionName("GetAll")]
        
        [HttpGet("{InstitutionProgAssocId}/{ProgApSpAssocId}")]
        public async Task<List<XXXDTO>> GetAllXXX(int XXXProgAssocId, int ProgApSpAssocId)
        {
            return await _XXXService.GetAllXXX(XXXAssocId, ProgApSpAssocId);
        }