Question

我是azure web功能的新手，我似乎无法在同一个项目中找到有关多个触发器的任何文档。我已经创建了我的解决方案并且已经创建了一个很好的 TimerTrigger ，它可以正常工作。

此触发器从ftp目录下载文件，然后将文件上载到我们的azure存储帐户。代码如下所示：

[DependencyInjectionConfig(typeof(DependencyInjectionConfig))]
public class FtpTrigger
{
    [FunctionName("EOrderTimerTrigger")]
    public static async Task Run(
        [TimerTrigger("*/15 * * * * *")]TimerInfo myTimer, 
        TraceWriter log,
        [Inject]IConfig config,
        [Inject]SmartFileClient smartFileClient,
        [Inject]SettingsHandler settingsHandler,
        [Inject]StorageHandler storageHandler)
    {
        if (myTimer.IsPastDue)
            log.Info("Timer is running late!");

        log.Info($"Listing directories from { config.FtpUrl }");

        var accounts = await smartFileClient.ListDirectories(config.FtpPath);

        if (!accounts.Any())
        {
            log.Warning($"There are no files waiting to be processed for any account");
            return;
        }

        foreach (var account in accounts)
        {
            try
            {
                log.Info($"Retrieving settings for { account }");
                var url = $"{config.ApiBaseUrl}/{config.ApiSettingsPath}";
                var settings = await settingsHandler.GetAsync(url, account);

                log.Info($"Find all order files for { account }");
                var fileNames = await smartFileClient.ListFiles($"{config.FtpPath}/{account}", settings.OrderFileSuffix.Replace(".", ""));

                if (!fileNames.Any())
                {
                    log.Warning($"No files to process for { account }");
                    continue;
                }

                log.Info($"Get a list of files awaiting to be processed for { account }");
                var awaiting = await storageHandler.ListAsync(config.StorageProcessingContainer, account);

                foreach(var fileName in fileNames)
                {
                    log.Info($"Finding any files awaiting to be processed in the storage account for { account }");
                    var friendlyName = Regex.Replace(fileName, "[^a-zA-Z0-9_.]+", "", RegexOptions.Compiled); ;
                    var match = awaiting.Any(m => m.Equals(friendlyName));
                    if (match)
                    {
                        log.Warning($"File ({fileName}) already awaiting to be processed for { account }");
                        continue;
                    }

                    log.Info($"Download { fileName } from the ftp directory for { account }");
                    var bytes = await smartFileClient.DownloadFile($"{config.FtpPath}/{account}", fileName);

                    log.Info($"Upload { fileName } to the Azure Storage account for { account }");
                    await storageHandler.UploadAsync(friendlyName, bytes, config.StorageProcessingContainer, account);

                    log.Info($"Delete { fileName } from the ftp directory for { account }");
                    if (!await smartFileClient.DeleteFile($"{config.FtpPath}/{account}", fileName))
                        log.Error($"Failed to delete { fileName } from the ftp directory for { account }");
                }

            } catch (Exception ex)
            {
                log.Error($"{ ex.Message }");
            }
        }

        log.Info($"C# Timer trigger function executed at: {DateTime.Now}");
    }
}

现在我想添加第二个触发器。此触发器将是 BlobTrigger 。我将它添加到我的项目并运行它，即使创建了文件也从未触发过。所以我意识到我一定做错了。

有人可以告诉我如何在项目中使用多个触发器吗？如果不能做到;有什么替代方案？

Answer 1

实际上，您可以在同一个天蓝色功能项目中添加多个触发器。

我将它添加到我的项目中并运行它并且它从未被触发，即使创建了文件也是如此。

您可以关注此article。

[FunctionName("Function2")]
        public static void Run([BlobTrigger("samples-workitems/{name}", Connection = "blobconnect")]Stream myBlob, string name, TraceWriter log)
        {
            log.Info($"C# Blob trigger function Processed blob\n Name:{name} \n Size: {myBlob.Length} Bytes");
        }

注意：blob触发器路径中的字符串{name} samples-workitems / {name}创建一个绑定表达式，您可以在函数代码中使用该表达式来访问触发blob的文件名。有关详细信息，请参阅本文后面的Blob名称模式。

您只需将samples-workitems修改为container name即可。并在local.hosting.json文件中设置blob连接。

azure函数，同一.net项目中的多个触发器

1 个答案: