How do you scale up Rails?

Some of them are specific to Ruby on Rails; others generalize to any shared-nothing application server architecture.

1. 1) Cache, cache, cache and more cache.
2. 2) Segregate data and data serving.
3. 3) Minimize & handle external dependencies.
4. 4) Tend your database and your job handlers.
5. 5) Shard your unavoidably relational data.

Is Rails scalable?

Ruby on Rails has not a larger scalability issue than comparable PHP frameworks. Both Rails and PHP will scale well if you have only a moderate number of users (10,000-100,000) which operate on a similar number of objects. For a few thousand users a classic monolithic architecture will be sufficient.

What is Packwerk?

Packwerk is a Ruby gem used to enforce boundaries and modularize Rails applications. Packwerk can be used to: Combine groups of files into packages. Define package-level constant visibility (i.e. have publicly accessible constants) Enforce privacy (inbound) and dependency (outbound) boundaries between packages.

What are strong parameters?

Strong Parameters is a feature of Rails that prevents assigning request parameters to objects unless they have been explicitly permitted. It has its own DSL (Domain Specific Language, or in other words, a predefined syntax it understands), that allows you to indicate what parameters should be allowed.

How do you use Packwerk?

Start Using Packwerk. To get Packwerk installed in your Rails application, add it as a gem and simply run the command packwerk init . The command will generate the configuration files needed for you to use Packwerk.

Is Shopify monolithic?

Shopify uses a monolith architecture built with Ruby on Rails and MySQL. And, it scales to traffic volumes that most of the projects we are usually building will never even dream of getting 5% of that load.

Why we use strong params in Rails?

Strong Parameters, aka Strong Params, are used in many Rails applications to increase the security of data sent through forms. Strong Params allow developers to specify in the controller which parameters are accepted and used.

What are strong parameters ROR?

What tech stack does Shopify use?

Today, we use Docker, Kubernetes, and Google Kubernetes Engine to make it easy to bootstrap resources for new Shopify Pods. As is common in the Rails stack, since the very beginning, we’ve stayed with MySQL as a relational database, Memcached for key/value storage and Redis for queues and background jobs.

Is Shopify modular?

We chose to evolve Shopify into a modular monolith, meaning that we would keep all of the code in one codebase, but ensure that boundaries were defined and respected between different components.

What are callbacks in Rails?

In Rails, callbacks are hooks provided by Active Record that allow methods to run before or after a create, update, or destroy action occurs to an object. Since it can be hard to remember all of them and what they do, here is a quick reference for all current Rails 5 Active Record callbacks.

What are filters in Ruby on Rails?

Rails filters are methods that run before or after a controller’s action method is executed. They are helpful when you want to ensure that a given block of code runs with whatever action method is called.