缩略图上传YouTube API v3失败
YouTube API v3的记录非常糟糕。 我已经多次报告了很多错误，但没有人做出反应。 我仍然需要使用此API上传缩略图。 该指南指出：
POST https://www.googleapis.com/youtube/v3/thumbnails/set
认证范围：
- https://www.googleapis.com/auth/youtubepartner
- https://www.googleapis.com/auth/youtube.upload
- https://www.googleapis.com/auth/youtube
参数：
- videoId：string videoId参数指定要为其提供自定义video缩略图的YouTubevideoID。
首先 – url错了 。 它必须是https://www.googleapis.com/upload/youtube/v3/thumbnails/set 。 现在关注代码，它使用Unirest ：
final HttpResponse response = Unirest.post("https://www.googleapis.com/upload/youtube/v3/thumbnails/set") .header("Content-Type", "application/octet-stream") .header("Authorization", accountService.getAuthentication(account).getHeader()) .field("videoId", videoid) .field("thumbnail", thumbnail) .asString();
收到的答复：
{ "error": { "errors": [ { "domain": "global", "reason": "required", "message": "Required parameter: videoId", "locationType": "parameter", "location": "videoId" } ], "code": 400, "message": "Required parameter: videoId" } }
怎么会这样？ videoId已设置好！ 有没有人玩过这部分API？
我可以将请求更改为
Unirest.post("https://www.googleapis.com/upload/youtube/v3/thumbnails/set?videoId=" + videoid) .header("Content-Type", "application/octet-stream") .header("Authorization", accountService.getAuthentication(account).getHeader()) .field("mediaUpload", thumbnail) .asString();
这会给我这个错误：
{ "error": { "errors": [ { "domain": "global", "reason": "backendError", "message": "Backend Error" } ], "code": 503, "message": "Backend Error" } }
编辑：Ibrahim Ulukaya发布的URL相同请求（参考指南中的原始url）：
{ "error": { "errors": [ { "domain": "global", "reason": "wrongUrlForUpload", "message": "Uploads must be sent to the upload URL. Re-send this request to https://www.googleapis.com/upload/youtube/v3/thumbnails/set" } ], "code": 400, "message": "Uploads must be sent to the upload URL. Re-send this request to https://www.googleapis.com/upload/youtube/v3/thumbnails/set" } }
我们挖掘了这个问题，如果您不想使用该库，这里是您必须遵循的步骤。
1）POST https://www.googleapis.com/upload/youtube/v3/thumbnails/set?videoId=VIDEO_ID&uploadType=resumable ，空体
2）获取响应的Location：标题中的URL，并使用Content-Type：image / png和正文中的缩略图POST到该URL
url将被修复。
您还需要在频道中拥有特定权限才能设置自定义缩略图。
我们的示例代码中有PHP和Python示例。
这是Java，我刚刚编写并测试过，它的工作原理。
/* * Copyright (c) 2013 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express * or implied. See the License for the specific language governing permissions and limitations under * the License. */ package com.google.api.services.samples.youtube.cmdline.youtube_cmdline_uploadthumbnail_sample; import com.google.api.client.auth.oauth2.Credential; import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp; import com.google.api.client.extensions.java6.auth.oauth2.FileCredentialStore; import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver; import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow; import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets; import com.google.api.client.googleapis.json.GoogleJsonResponseException; import com.google.api.client.googleapis.media.MediaHttpUploader; import com.google.api.client.googleapis.media.MediaHttpUploaderProgressListener; import com.google.api.client.http.HttpTransport; import com.google.api.client.http.InputStreamContent; import com.google.api.client.http.javanet.NetHttpTransport; import com.google.api.client.json.JsonFactory; import com.google.api.client.json.jackson2.JacksonFactory; import com.google.api.services.youtube.YouTube; import com.google.api.services.youtube.YouTube.Thumbnails.Set; import com.google.api.services.youtube.model.ThumbnailSetResponse; import com.google.common.collect.Lists; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.util.List; /** * This sample uploads and sets a custom thumbnail for a video by: * * 1. Uploading a image utilizing "MediaHttpUploader" 2. Setting the uploaded image as a custom * thumbnail to the video via "youtube.thumbnails.set" method * * @author Ibrahim Ulukaya */ public class UploadThumbnail { /** * Global instance of the HTTP transport. */ private static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport(); /** * Global instance of the JSON factory. */ private static final JsonFactory JSON_FACTORY = new JacksonFactory(); /** * Global instance of Youtube object to make all API requests. */ private static YouTube youtube; /* Global instance of the format used for the image being uploaded (MIME type). */ private static String IMAGE_FILE_FORMAT = "image/png"; /** * Authorizes the installed application to access user's protected data. * * @param scopes list of scopes needed to run youtube upload. */ private static Credential authorize(List scopes) throws IOException { // Load client secrets. GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(UploadThumbnail.class.getResourceAsStream("/client_secrets.json"))); // Checks that the defaults have been replaced (Default = "Enter X here"). if (clientSecrets.getDetails().getClientId().startsWith("Enter") || clientSecrets.getDetails().getClientSecret().startsWith("Enter ")) { System.out.println( "Enter Client ID and Secret from https://code.google.com/apis/console/?api=youtube" + "into youtube-cmdline-uploadthumbnail-sample/src/main/resources/client_secrets.json"); System.exit(1); } // Set up file credential store. FileCredentialStore credentialStore = new FileCredentialStore( new File(System.getProperty("user.home"), ".credentials/youtube-api-uploadthumbnail.json"), JSON_FACTORY); // Set up authorization code flow. GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder( HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, scopes).setCredentialStore(credentialStore) .build(); // Build the local server and bind it to port 8080 LocalServerReceiver localReceiver = new LocalServerReceiver.Builder().setPort(8080).build(); // Authorize. return new AuthorizationCodeInstalledApp(flow, localReceiver).authorize("user"); } /** * This is a very simple code sample that looks up a user's channel, then features the most * recently uploaded video in the bottom left hand corner of every single video in the channel. * * @param args command line args (not used). */ public static void main(String[] args) { // An OAuth 2 access scope that allows for full read/write access. List scopes = Lists.newArrayList("https://www.googleapis.com/auth/youtube"); try { // Authorization. Credential credential = authorize(scopes); // YouTube object used to make all API requests. youtube = new YouTube.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential).setApplicationName( "youtube-cmdline-addfeaturedvideo-sample").build(); // Get the user selected video Id. String videoId = getVideoIdFromUser(); System.out.println("You chose " + videoId + " to upload a thumbnail."); // Get the user selected local image file to upload. File imageFile = getImageFromUser(); System.out.println("You chose " + imageFile + " to upload."); InputStreamContent mediaContent = new InputStreamContent( IMAGE_FILE_FORMAT, new BufferedInputStream(new FileInputStream(imageFile))); mediaContent.setLength(imageFile.length()); // Create a request to set the selected mediaContent as the thumbnail of the selected video. Set thumbnailSet = youtube.thumbnails().set(videoId, mediaContent); // Set the upload type and add event listener. MediaHttpUploader uploader = thumbnailSet.getMediaHttpUploader(); /* * Sets whether direct media upload is enabled or disabled. True = whole media content is * uploaded in a single request. False (default) = resumable media upload protocol to upload * in data chunks. */ uploader.setDirectUploadEnabled(false); MediaHttpUploaderProgressListener progressListener = new MediaHttpUploaderProgressListener() { @Override public void progressChanged(MediaHttpUploader uploader) throws IOException { switch (uploader.getUploadState()) { case INITIATION_STARTED: System.out.println("Initiation Started"); break; case INITIATION_COMPLETE: System.out.println("Initiation Completed"); break; case MEDIA_IN_PROGRESS: System.out.println("Upload in progress"); System.out.println("Upload percentage: " + uploader.getProgress()); break; case MEDIA_COMPLETE: System.out.println("Upload Completed!"); break; case NOT_STARTED: System.out.println("Upload Not Started!"); break; } } }; uploader.setProgressListener(progressListener); // Execute upload and set thumbnail. ThumbnailSetResponse setResponse = thumbnailSet.execute(); // Print out returned results. System.out.println("\n================== Uploaded Thumbnail ==================\n"); System.out.println(" - Url: " + setResponse.getItems().get(0).getDefault().getUrl()); } catch (GoogleJsonResponseException e) { System.err.println("GoogleJsonResponseException code: " + e.getDetails().getCode() + " : " + e.getDetails().getMessage()); e.printStackTrace(); } catch (IOException e) { System.err.println("IOException: " + e.getMessage()); e.printStackTrace(); } } /* * Prompts for a video ID from standard input and returns it. */ private static String getVideoIdFromUser() throws IOException { String title = ""; System.out.print("Please enter a video Id to update: "); BufferedReader bReader = new BufferedReader(new InputStreamReader(System.in)); title = bReader.readLine(); if (title.length() < 1) { // If nothing is entered, exits System.out.print("Video Id can't be empty!"); System.exit(1); } return title; } /* * Prompts for the path of the image file to upload from standard input and returns it. */ private static File getImageFromUser() throws IOException { String path = ""; System.out.print("Please enter the path of the image file to upload: "); BufferedReader bReader = new BufferedReader(new InputStreamReader(System.in)); path = bReader.readLine(); if (path.length() < 1) { // If nothing is entered, exits System.out.print("Path can not be empty!"); System.exit(1); } return new File(path); } }
给出的答案甚至不是正确的！ 如果您在此url中发布了没有图片的url：
https://www.googleapis.com/upload/youtube/v3/thumbnails/set?videoId=VIDEO_ID&uploadType=resumable
您将收到此错误：
“400：mediaBodyRequired”
此错误在本页底部的YouTube文档中进行了描述：
https://developers.google.com/youtube/v3/docs/thumbnails/set
如：
“该请求不包括图片内容。”
虽然他们的文档留下了很多东西（想想categoryId），但他们已经死了，因为我刚刚尝试了Ibrahim发布的第一个解决方案并收到了错误。 虽然他表示不提供身体中的图像数据，但文献和我自己的研究显示正好相反。
解决方案是发布到包含图像主体的URL。 这样做时，我收到了这样的回复：
{“kind”：“youtube＃thumbnailSetResponse”，“etag”：“\”kYnGHzMaBhcGeLrcKRx6PAIUosY / lcDPfygjJkG-yyzdBp0dKhY2xMY \“”，“items”：[{“default”：{“url”：“//i.ytimg.com /vi/fyBx3v1gmbM/default.jpg“，”width“：120，”height“：90}，”medium“：{”url“：”//i.ytimg.com/vi/fyBx3v1gmbM/mqdefault.jpg“， “width”：320，“height”：180}，“high”：{“url”：“//i.ytimg.com/vi/fyBx3v1gmbM/hqdefault.jpg”，“width”：480，“height”： 360}，“standard”：{“url”：“//i.ytimg.com/vi/fyBx3v1gmbM/sddefault.jpg”，“width”：640，“height”：480}，“maxres”：{“url “：”//i.ytimg.com/vi/fyBx3v1gmbM/maxresdefault.jpg“，”width“：1280，”height“：720}}]}
不幸的是，它并没有真正改变缩略图，但我认为这是一个问题，他们的API服务器和他们的缩略图处理排队。 它确实会返回一个成功的响应。 不知道为什么缩略图不会改变。