[ApiController]
[Route("api/[controller]")]
public class CalculatorController : ControllerBase
{
    [HttpPost("calculate-discount")]
    public ActionResult<decimal> CalculateDiscount([FromBody] DiscountRequest request)
    {
        // 自定义业务逻辑
        decimal discount = request.BaseAmount * (request.IsPremiumMember ? 0.2m : 0.1m);
        return Ok(discount);
    }
}

public class DiscountRequest
{
    public decimal BaseAmount { get; set; }
    public bool IsPremiumMember { get; set; }
}

async function callCustomApi() {
    const requestData = {
        baseAmount: 1000,
        isPremiumMember: true
    };
    
    try {
        const response = await fetch('https://api.example.com/api/calculator/calculate-discount', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'Authorization': 'Bearer your_token_here'
            },
            body: JSON.stringify(requestData)
        });
        
        if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
        }
        
        const discount = await response.json();
        console.log('Calculated discount:', discount);
    } catch (error) {
        console.error('Error calling API:', error);
    }
}

// C# CORS配置示例
services.AddCors(options =>
{
    options.AddPolicy("AllowSpecificOrigin",
        builder => builder.WithOrigins("https://your-client-domain.com")
                         .AllowAnyMethod()
                         .AllowAnyHeader());
});