One way to handle processing tasks is by running them in the background. This can be easily achieved on Heroku using tools like Resque + Redis or DelayedJob. Resque is a popular option for queuing tasks on top of Redis.
- To get started, install the free Heroku addon Redis to Go.
- Follow the instructions in the Redis To Go blog post on setting up Resque with Redis on Heroku.
Once everything is set up, here's a simple workflow:
- Submit the form data.
- Save the data as-is for later processing.
- Add the task to the queue using Resque.
For example, if you're dealing with user creation forms, you could write code like this:
module SaveUser
@queue = :save_user
def perform(attributes = {})
user = User.create(attributes)
user.process! if user && !user.processed_everthing?
end
end
def create
Resque.enqueue(SaveUser, params[:user])
An alternative approach would be storing just the user's ID in the queue:
module SaveUser
@queue = :save_user
def perform(id)
user = User.find(id)
user.process! if user && !user.processed_everthing?
end
end
def create
user = User.create(params[:user])
Resque.enqueue(SaveUser, user.id)
By offloading tasks to the queue, users will experience minimal delays when interacting with your application. However, if real-time results are essential, consider exploring other solutions.