Defining and adding multiple CORS policies to the middleware

startup.cs

readonly string CORSPolicies.PublicAPI = "corspolicy.public";
readonly string CORSPolicies.DevAPI = "corspolicy.dev";
    
services.AddCors(options =>
{
    options.AddPolicy(CORSPolicies.PublicAPI,
        builder => builder
            .AllowAnyHeader()
            .WithMethods("POST", "GET")
            .WithOrigins("https://domain1.com", "https://domain2.com"));

    options.AddPolicy(CORSPolicies.DevAPI,
        builder => builder
            .AllowAnyHeader()
            .AllowAnyMethod()
            .AllowAnyOrigin());
});