I want to post a message 'Hello world' with three hashtags #abc #bcd #cde to a users timeline who visits my website and clicks on the share button. what I have tried : 1)Initially I tried Facebook's javascript SDK but I was not able to do it as publish_actions is now deprecated. So 2)Secondly I used 'share dialog' to get it done. I was able to post my content there but by default share dialog supports only one Hashtag. So how can I post multiple Hashtags using share dialog? or is there any other way I can achieve this?
Prefilling the message is not possible and not allowed, it must be user generated. About the hashtag: Only one is possible, you can try adding one in the "quote" parameter - i doubt that it will work though.