无法成功 运行 包含将视频上传到 YouTube 的代码的 Azure 函数

Question

我基本上是在创建一个 HTTP 触发器 Azure 函数，它具有使用 YouTube API 将视频上传到 YouTube 的代码。代码几乎由 YouTubeAPI 文档提供：https://developers.google.com/youtube/v3/docs/videos/insert。我稍微重新格式化了代码以使其适合 Azure 函数。

但是，当我尝试在 Visual Studio 上本地 运行 函数时，我收到 500 错误消息：

Executed 'Function1' (Failed, Id=84400f0c-b6e4-4c78-bf55-30c4527a8b5f) System.Private.CoreLib: Exception while executing function: Function1. System.Private.CoreLib: Could not find file 'C:\Users\Peter\Desktop\TestDemo\UploadVideo\UploadVideo\bin\Debug\netcoreapp2.1\client_secrets.json'.

我不确定如何修复此错误并使函数 运行 没有任何错误。在代码（下面）中是否需要 added/changed 才能解决此问题？

我的目标：我的最终目标是每当有新视频添加到 Azure Blob 存储中时触发此 azure 函数。

代码

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Upload;
using Google.Apis.YouTube.v3.Data;
using System.Reflection;
using Google.Apis.YouTube.v3;
using Google.Apis.Services;
using System.Threading;

namespace UploadVideo
{
    public static class Function1
    {
        [FunctionName("Function1")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");

            log.LogInformation("YouTube Data API: Upload Video");
            log.LogInformation("==============================");

            try
            {
                await Run();
            }
            catch (AggregateException ex)
            {
                foreach (var e in ex.InnerExceptions)
                {
                    log.LogInformation("Error: " + e.Message);
                }
            }

            return new OkObjectResult($"Video Processed..");

        }

        private static async Task Run()
        {
            UserCredential credential;
            using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
            {
                credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.Load(stream).Secrets,
                    // This OAuth 2.0 access scope allows an application to upload files to the
                    // authenticated user's YouTube channel, but doesn't allow other types of access.
                    new[] { YouTubeService.Scope.YoutubeUpload },
                    "user",
                    CancellationToken.None
                );
            }

            var youtubeService = new YouTubeService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
            });

            var video = new Video();
            video.Snippet = new VideoSnippet();
            video.Snippet.Title = "Default Video Title";
            video.Snippet.Description = "Default Video Description";
            video.Snippet.Tags = new string[] { "tag1", "tag2" };
            video.Snippet.CategoryId = "22"; // See https://developers.google.com/youtube/v3/docs/videoCategories/list
            video.Status = new VideoStatus();
            video.Status.PrivacyStatus = "unlisted"; // or "private" or "public"
            var filePath = @"C:\Users\Peter\Desktop\audio\test.mp4"; // Replace with path to actual movie file.

            using (var fileStream = new FileStream(filePath, FileMode.Open))
            {
                var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", fileStream, "video/*");
                videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
                videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;

                await videosInsertRequest.UploadAsync();
            }
        }

        private static void videosInsertRequest_ProgressChanged(Google.Apis.Upload.IUploadProgress progress)
        {
            switch (progress.Status)
            {
                case UploadStatus.Uploading:
                    Console.WriteLine("{0} bytes sent.", progress.BytesSent);
                    break;

                case UploadStatus.Failed:
                    Console.WriteLine("An error prevented the upload from completing.\n{0}", progress.Exception);
                    break;
            }
        }

        private static void videosInsertRequest_ResponseReceived(Video video)
        {
            Console.WriteLine("Video id '{0}' was successfully uploaded.", video.Id);
        }
    }
}

Answer 1

Could not find file 'C:\Users\Peter\Desktop\TestDemo\UploadVideo\UploadVideo\bin\Debug\netcoreapp2.1\client_secrets.json'.

它正在寻找 "client_secrets.json" 它需要与您的代码位于同一目录中。因为你还没有告诉它看其他地方

using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
        {

备注

GoogleWebAuthorizationBroker.AuthorizeAsync 仅设计用于已安装的应用程序，它将打开服务器上的 Web 浏览器并提示用户验证代码。

如果我错了请纠正我，但 azure 函数没有 ui 端点，您可以在其中提示用户进行身份验证。这意味着您唯一可以使用的是服务帐户，而 YouTube api 不支持服务 帐户。

Answer 2

首先，根据您的要求：

My goal: my ultimate goal is to trigger this azure function whenever there is a new video added into the Azure Blob Storage.

您需要使用 Azure blob 触发器来实现您的目标。

从你的错误来看：

Executed 'Function1' (Failed, Id=84400f0c-b6e4-4c78-bf55-30c4527a8b5f) System.Private.CoreLib: Exception while executing function: Function1. System.Private.CoreLib: Could not find file 'C:\Users\Peter\Desktop\TestDemo\UploadVideo\UploadVideo\bin\Debug\netcoreapp2.1\client_secrets.json'.

我认为您在创建 json 文件后没有将其属性更改为 'Copy if newer'。如果您不更改此 属性，您将面临此错误。因此它与您的代码在同一文件夹中，但与您的 dll 文件不在同一文件夹中。