user_id | ID of the user whose friend request will be approved or to whom a friend request will be sent. positive number |
text | Text of the message (up to 500 characters) for the friend request, if any. string |
follow | 1 to pass an incoming request to followers list. flag, either 1 or 0 |
174 | Cannot add user himself as friend |
175 | Cannot add this user to friends as they have put you on their blacklist |
176 | Cannot add this user to friends as you put him on blacklist |
177 | Cannot add this user to friends as user not found |