问题描述
我希望用户通过网站上的表单在 Facebook 页面上发布图片.当他们在本网站上通过 facebook 登录后,他们可以从他们的电脑中选择一张图片.
I want users to post an image on a facebook page via a form on a website. When they have logged in via facebook on this website, they can select an image from their computer.
一旦他们选择了图像,我希望将其发布到用户墙上,以及我是管理员之一的页面的相册中.
Once they have selected the image, I want it to be posted to the users wall, and in an album of the page where I'm one of the *****istrators.
我为此创建了一个应用程序,但我们似乎无法找到让应用程序在此 facebook 页面上发布的方法.
I have created an app for this, but we can't seem to find a way to get the app to post on this facebook-page.
我们需要为此页面或应用设置任何权限吗?
Do we need to set any permissions on this page or app?
推荐答案
要将图像上传到您是其管理员的 Facebook 页面,您需要执行以下操作:
To upload images to a facebook page of which you're an ***** you need to do the following:
1.) 创建一个 facebook 应用程序(通常的方式),确保你指定了 Canvas URL
1.) Create a facebook application (the usual way), make sure you specify the Canvas URL
2.) 导航到以下 url 以页面管理员身份登录,并授予权限 (user_photos,manage_pages,offline_access,publish_stream)
2.) Navigate to the url below logged in as the ***** of the page, and give the permissions (user_photos,manage_pages,offline_access,publish_stream)
https://www.facebook.com/dialog/oauth? client_id=<application_id> &redirect_uri=<canvas_url> &response_type=token &scope=user_photos,manage_pages,offline_access,publish_stream
3.) 当您授予应用程序所需的权限时,您将被重定向到 canvas_url#access_token=*access_token*,例如
3.) When you give the application the required permissions you'll be redirected to canvas_url#access_token=*access_token*, for example
http://www.51sjk.com/Upload/Articles/1/0/337/337783_20221130104420642.jpg
4.) 然后导航到
https://graph.facebook.com/me/accounts?access_token=<access_token>
(使用 #3 中的访问令牌).这将列出您管理的页面;记下要上传图片的页面的 access_token
(use the access token from #3). This will list the pages you *****ister; write down the access_token for the page(s) to which you want to upload the image
我不是 100% 确定,但我相信使用图形 API 您只能将图像上传到通过图形 API 创建的相册;即您需要首先通过图形 api 创建一个专辑.下面是使用 curl 的示例代码:
I'm not 100% sure but I believe that using graph api you can upload images only to albums created via graph api; i.e. you need to first create an album via graph api. Here's sample code using curl:
$uri = sprintf( 'https://graph.facebook.com/%1$s/albums?access_token=%2$s', $page_id, $access_token ); $post_fields = array( 'name' => trim( $album_name ) ); $curl = curl_init( $uri ); curl_setopt( $curl, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt( $curl, CURLOPT_POST, TRUE ); curl_setopt( $curl, CURLOPT_POSTFIELDS, $post_fields ); $raw_data = curl_exec( $curl ); curl_close( $curl ); $data = json_decode( $raw_data, $assoc = TRUE );
上面的 $data 将包含相册 ID,您需要上传照片:
The $data above will contain the album id, which you'll need to upload a photo:
// prepare the curl post fields $batch = sprintf( '[{"method":"POST", "relative_url":"%1$s/photos", "attached_files":"file1"}]', $album_id ); $post_fields = array( 'batch' => $batch, 'access_token' => $access_token, 'file1' => '@' . $image_abs_path ); $uri = 'https://graph.facebook.com'; $curl = curl_init( $uri ); curl_setopt( $curl, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt( $curl, CURLOPT_POST, TRUE ); curl_setopt( $curl, CURLOPT_POSTFIELDS, $post_fields ); $raw_data = curl_exec( $curl ); curl_close( $curl ); $data = json_decode( $raw_data, $assoc = TRUE );