如何 post 到用户的 facebook feed

Question

我需要post到用户的 facebook feed。

基于其他几个 SO 问题，我提出了以下 posting 请求：

let request = GraphRequest(graphPath: "me/feed", parameters: ["message" : "Hello world"], accessToken: accessToken, httpMethod: .POST, apiVersion: GraphAPIVersion.defaultVersion)
request.start({ (response, requestResult) in

    switch requestResult {
    case .failed(let error):
        print("error in graph request:", error)

    case .success(let graphResponse):
        if let responseDictionary = graphResponse.dictionaryValue {
            print(responseDictionary)
        }
    }
})

由于

这失败了

error =         {
    code = 200;
    "fbtrace_id" = GMp2cebddNb;
    message = "(#200) Requires either publish_actions permission, or manage_pages and publish_pages as an admin with sufficient administrative permission";
    type = OAuthException;
};

根据消息，问题似乎很容易解决 - 我只需要获得 publish_actions 或 manage_pages 和 publish_pages 权限即可。基于这个，这看起来很简单，我最终用这个包装了 posting 的代码：

let loginManager = LoginManager()
loginManager.logIn([PublishPermission.custom("publish_actions")], viewController: self) { (result) in

    print(">> \(AccessToken.current?.grantedPermissions)")

    switch result {

    case .cancelled:
        print(">>>> Cancelled")

    case .failed(let error):
        print(">>>> Error: \(error)" )

    case .success(grantedPermissions: _, declinedPermissions: _, token: let accessToken):
        print(">>>> Logged in!")
        let request = GraphRequest(graphPath: "me/feed", parameters: ["message" : post], accessToken: accessToken, httpMethod: .POST, apiVersion: GraphAPIVersion.defaultVersion)
        request.start({ (response, requestResult) in

            switch requestResult {
            case .failed(let error):
                print("error in graph request:", error)
                break
            case .success(let graphResponse):
                if let responseDictionary = graphResponse.dictionaryValue {
                    print(responseDictionary)
                }
            }
        })
    }
}

现在 "funny" 部分是，然后 facebook SDK 显示一个页面告诉我我之前使用 Facebook 登录到我的应用程序并询问我是否要继续。当我按继续时，SafariViewController 关闭并执行 .cancelled 分支。这里发生了什么？我没有取消，也没有被要求授予在我的 Feed 上发布任何内容的权限。

P.S.: 我尝试先注销 (loginManager.logOut() and/or AccessToken.current = nil)，在这种情况下 .success 分支执行但再次使用同样的错误 "(#200) Requires either publish_actions permission, or manage_pages and publish_pages as an admin with sufficient administrative permission".

在这种情况下 AccessToken.current.grantedPermissions 包含：

Set([FacebookCore.Permission(name: "user_friends"),
    FacebookCore.Permission(name: "publish_pages"), 
    FacebookCore.Permission(name: "user_location"), 
    FacebookCore.Permission(name: "email"), 
    FacebookCore.Permission(name: "user_likes"), 
    FacebookCore.Permission(name: "pages_show_list"), 
    FacebookCore.Permission(name: "manage_pages"), 
    FacebookCore.Permission(name: "user_photos"), 
    FacebookCore.Permission(name: "public_profile"), 
    FacebookCore.Permission(name: "user_posts"), 
    FacebookCore.Permission(name: "user_birthday")])

所以没有 publish_actions 许可！为什么登录成功但未授予我请求的权限？而且，我明明有"manage_pages"和"publish_pages"，为什么还不够呢？

Answer 1

https://developers.facebook.com/docs/graph-api/changelog/breaking-changes#4-24-2018

The publish_actions permission has been removed.

由于他们没有提及任何替代方案，因此无法再post 到用户供稿。

如何 post 到用户的 facebook feed

How to post to user's facebook feed

ios

swift

facebook

facebook-ios-sdk

fbsdk