使用C＃将页面发布为页面（Facebook）

Question

I've made some progress thanks to this page: Facebook Error (#200) The user hasn't authorized the application to perform this action

However, I'm now lost when it comes to posting as a page. From the comments, I see that I need to

... get a page access token by granting yourself manage_pages permission and getting the page token from an API call to /me/accounts (using the user token with the last call)

I've gone and granted myself manage_pages permission but how do I make an API call to /me/accounts to get the page token? And once I get the page token, do I just simply use that token instead and leave my code as it stands?

Code below:

        var pageId = facebookPageId;

        var app = new FacebookClient();
        app.AccessToken = facebookAccessToken; // copied from Graph Explorer

        dynamic messagePost = new ExpandoObject();
        messagePost.access_token = facebookAccessToken; // copied from Graph Explorer
        messagePost.link = "www.google.com";
        messagePost.name = "some name";
        messagePost.caption = "{test actor} " + "Test message"; //<---{*actor*} is the user (i.e.: Aaron)
        messagePost.description = "Test description";

        try {
            var result = app.Post("/" + pageId + "/feed", messagePost);
        } catch (FacebookOAuthException ex) {
            var test = ex;
        } catch (FacebookApiException ex) {
            var test = ex;
        }

Answer 1

I've gone and granted myself manage_pages permission but how do I make an API call to /me/accounts to get the page token?

You use the API, I'm assuming there is an equivalent call in the C# SDK for app.Post as app.Get . Seeing that this is a personal app, you can just use the developer tool again, select your app from the dropdown, grant yourself manage_pages permissions then call /me/accounts

The page token for your page should be there in the result.

You can also directly get it via a call to PAGE_ID?fields=access_token