In the web application I'm currently developing, a user should be able to read all the messages from his/her Facebook inbox. The corresponding data is supposed to be loaded by the server using facebook4j (Java) and then presented to the user. The current documentation for the Graph API suggests that the "read_mailbox" permission is needed to access the inbox. However, it also says that the use is limited:
This permission is granted to apps building a Facebook-branded client on platforms where Facebook is not already available. For example, Android and iOS apps will not be approved for this permission. In addition, Web, Desktop, in-car and TV apps will not be granted this permission.
This indicates that my web application will not even be allowed to use the "read_mailbox" permission when asking the user to grant access. Did I understand this correctly? If yes, what kind of app would even be able to use "read_mailbox" based on these stringent limitations?
According to the changelog, the
read_mailboxpermission is deprecated: https://developers.facebook.com/docs/apps/changelog#v2_4_deprecations...which means, it is not possible at all.