وب سرویس پیامک در C# و ASP.NET Core؛ راهنمای اتصال با HttpClient و DI

public interface ISmsService { Task<bool> SendOtpAsync(string mobile, string patternCode, Dictionary<string, object> parameters); Task<bool> SendSimpleSmsAsync(string mobile, string message); }

using System.Net.Http.Json; public class FreeSmsService : ISmsService { private readonly HttpClient _httpClient; public FreeSmsService(HttpClient httpClient) { _httpClient = httpClient; } public async Task<bool> SendOtpAsync(string mobile, string patternCode, Dictionary<string, object> parameters) { var payload = new { to = mobile, pattern_code = patternCode, params = parameters }; var response = await _httpClient.PostAsJsonAsync("otp", payload); return response.IsSuccessStatusCode; } public async Task<bool> SendSimpleSmsAsync(string mobile, string message) { var payload = new { to = new[] { mobile }, text = message }; var response = await _httpClient.PostAsJsonAsync("send", payload); return response.IsSuccessStatusCode; } }

builder.Services.AddHttpClient<ISmsService, FreeSmsService>(client => { client.BaseAddress = new Uri("https://api.free-sms.ir/v1/"); client.DefaultRequestHeaders.Add("Authorization", $"Bearer {builder.Configuration["FreeSms:ApiKey"]}"); client.Timeout = TimeSpan.FromSeconds(5); });

{ "FreeSms": { "ApiKey": "YOUR_FREE_SMS_API_KEY" } }

app.MapPost("/api/auth/send-code", async (string mobile, ISmsService smsService) => { var code = new Random().Next(10000, 99999).ToString(); var parameters = new Dictionary<string, object> { { "code", code } }; var sent = await smsService.SendOtpAsync(mobile, "identity_otp_v1", parameters); if (!sent) return Results.Problem("ارسال پیامک با خطا مواجه شد"); return Results.Ok(new { message = "کد تایید ارسال گردید" }); });