1. 程式人生 > >騰訊雲短信服務使用記錄與.NET Core C#代碼分享

騰訊雲短信服務使用記錄與.NET Core C#代碼分享

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1、即使是相同的短信簽名與短信正文模板,也需要針對“國內文本短信”與“海外文本短信”分別申請。開始不知道,以為只要申請一次,給國外手機發短信時給api傳對應的國家碼就行,後來才發現需要分別申請。

2、短信服務web api響應“手機號內容頻率限制”錯誤。這是由於在30秒內向同一手機號多次發送了相同內容的短信,這是騰訊雲短信服務的默認限制——“相同內容短信對同一個手機號,30秒內發送短信條數不超過1條”,可以通過“應用配置”的“短信頻率配置”修改這個限制。

3、騰訊雲短信服務沒有提供 .NET Core 的 SDK,我們自己實現的代碼如下:

public class TencentCloudSmsService : ISmsService
{
    private static readonly HttpClient _httpClient = 
        new HttpClient { BaseAddress = new Uri("https://yun.tim.qq.com") };
    private readonly string _appId;
    private readonly string _appKey;
    
private const string SIGNATURE = "..."; private const int DOMESTIC_TEMPLATE_ID = 1234; private const int OVERSEA_TEMPLATE_ID = 5678; private readonly ILogger _logger; public TencentCloudSmsService(IConfiguration conf, ILoggerFactory loggerFactory) { _appId
= conf["tencentCloudSms:appId"]; if (string.IsNullOrEmpty(_appId)) throw new ArgumentException($"{nameof(_appId)} must have a value"); _appKey = conf["tencentCloudSms:appKey"]; if (string.IsNullOrEmpty(_appKey)) throw new ArgumentException($"{nameof(_appKey)} must have a value"); _logger = loggerFactory.CreateLogger<TencentCloudSmsService>(); } public async Task<bool> SendCode(string countryCode, long mobile, int code) { var random = GetRandom(); var timestamp = DateTimeOffset.Now.ToUnixTimeSeconds(); var data = new { tel = new { nationcode = countryCode.Replace("+", ""), mobile = mobile.ToString() }, sign = SIGNATURE, tpl_id = countryCode == "+86" ? DOMESTIC_TEMPLATE_ID : OVERSEA_TEMPLATE_ID , @params = new[] { code.ToString() }, sig = ComputeSignature(mobile, random, timestamp), time = timestamp, extend = "", ext = "" }; var url = $"/v5/tlssmssvr/sendsms?sdkappid={_appId}&random={random}"; _logger.LogDebug("Post to " + _httpClient.BaseAddress + url); var response = await _httpClient.PostAsJsonAsync<dynamic>(url, data); _logger.LogDebug("Post data:\n" + JsonConvert.SerializeObject(data)); response.EnsureSuccessStatusCode(); var result = await response.Content.ReadAsAsync<dynamic>(); if(result.result != 0) { _logger.LogError($"Failed to send message to {countryCode}-{mobile}: {result.errmsg}"); return false; } return true; } private string ComputeSignature(long mobile, int random, long timestamp) { var input = $"appkey={_appKey}&random={random}&time={timestamp}&mobile={mobile}"; var hasBytes = SHA256.Create().ComputeHash(Encoding.UTF8.GetBytes(input)); return string.Join("", hasBytes.Select(b => b.ToString("x2"))); } private int GetRandom() { return new Random().Next(100000, 999999); } }

騰訊雲短信服務使用記錄與.NET Core C#代碼分享