There are two different ways of making authenticated requests. One is to obtain
a temporary access token from https://developers.facebook.com/tools/explorer/,
which can be used as argument in any of the functions in Rfacebook. An example is
shown below.However, this token has a 2-hour lifetime by default and after it expires, it
needs to be renewed. The second alternative is to create an OAuth token. The
process to create it is a bit more tedious. It is divided in three steps.
First, go to https://developers.facebook.com/apps, register as a developer
and create a new app. You will also need a verified Facebook account.
After that, click in "Show" under "App Secret" to find your 'App ID' and 'App Secret'.
Second, run the fbOAuth
function with your "App ID" and "App Secret" as
arguments. It will return a URL, which you will need to paste into the "Website with
Facebook login" field in your App Settings on Facebook. Once you've done so, press Enter.
Third, after pressing Enter, R will try to open a browser window to sign the token. If
everything works well, you will get a message that says you can return to R. If not,
try again in a few minutes to make sure your app had its settings updated properly.
To ensure proper functioning of the "getInsights" function-family you will need to
specify the exact permissions granted to your app. As this is (to our knowledge) currently not
possible through the R based authentication process, please follow these steps:
-> Create App as mentioned above.
1. Open the "Graph API Explorer": https://developers.facebook.com/tools/explorer/
2. Select your app in the upper right corner
3. Click "Get Token" -> "Get Access Token"
4. In the popup navigate to "Extended Permissions" and select "Insights"
5. Confirm
6. Ignore the following warning message ("Submit for Login Review...") and confirm again.
6. Go back to R and run fbOAuth with extended_permissions (still) set to FALSE.
-> See third step for possible messages concerning token creation.