Research on Agricultural Product Traceability Technology (Economic Value) Based on Information Supervision and Cloud Computing

Algorithm 1

userRegister() function.

	The input: Supply Chain Contract address base_addr, User group id user_group, user ID user_id, user role user_name, contract publisher owner
	The output: The user registration is complete or failed
	Require: the registered user_id is not in use
	if msg.sender = = owner then
	The user group id is not occupied
	if user_group[msg.sender].occupied = = 0 then
	user_group[msg.sender].occupied = = 1
	Return Completes the user group registration
	end if
	else
	The user group number is required to be registered
	user_group[user_group].add(user_id)
	user.id = user_id
	user.name = user_name
	end if
	final
	return: The user registration is complete