I am working on an application,which allows the user to share his promos(promos are daily deals) to all social media in a single click.That is I want to connect his FB,twitter and Linkedin accounts and authorize once and later he can share it to his FB,twitter,linkkedin with a single share button and a message fiels to add custom messg.
Tried to find something online but there are only individual plugins which are mostly for login and not for connect.These sites hootsuite and buffer app have this feature but they dont provide it for third party apps.
Can anyone point to a library that has this feature to connect all the social media and then post to the user wall?
There is no library, you have to program that on your own by using all the APIs of those Social Networks - which is what Hootsuite does. That´s why you have to authorize the Hootsuite App to make this work.