Instance variable getting reset after subsequent calls

I am new to ROR.

I have a controller

class Controllername < application
  def method1
    @obj = API_CALL
    redirect_to redirect_url    #calls the API authorization end point 
                                #and redirects to action method2 
  end

  def method2    #redirection to this action
     @obj.somemethod  #this value is null
  end
end

My problem is when I use Instance variable or class varaible @obj or @@obj becomes nil in the action method2. I want this value to be whatever the value in method1.

Note: SESSION note helping as it's giving SSL error.

Any help is kindly appreciated.