Sinatra Framework Interview Questions for Beginners

Sinatra Framework Interview Questions

What is Sinatra Framework?

Sinatra is a web application framework for rapidly building applications in Ruby. Sinatra is a domain-specific language or DSL which means it is designed from the ground up to build applications with minimal effort. It is written in Ruby.

Quick Questions About Sinatra Framework

Quick Questions Answers
Sinatra Framework is a Open source web application library
Sinatra Framework is written in Ruby programming language
Sinatra Framework purposeBuild web applications quickly and easily
Sinatra Framework is developed byKonstantin Haase
Sinatra Framework is initially released in09 Sept. 2007
Sinatra Framework LicenceMIT
Sinatra Framework popular web applicationsGitHub's Gist, Heroku Dashboard, and the Ruby Toolbox

Key Responsibilities of Sinatra Framework Developer

Some of the key responsibilities of a Sinatra Framework Developer include:

  • Develop web applications using the Sinatra framework.
  • Build APIs that conform to RESTful standards and follow best practices for API design.
  • Write clean,& maintainable code that is easy to understand and modify.
  • debug the code and identify and fix issues quickly.
  • Experience with database systems like MySQL, PostgreSQL, or MongoDB.
  • Able to integrate their application with these databases.
  • Familiar with deployment tools like Capistrano and have experience with web servers like Nginx or Apache.
  • Able to communicate effectively and contribute to code reviews and project planning.
  • Able to work in a team environment and collaborate with other developers.
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Below are the list of Best Sinatra Framework Interview Questions and Answers

Sinatra is web application framework for rapidly building applications in Ruby.Sinatra is a domain specific language or DSL which means it is designed from the ground up to build applications with minimal efforts.It is written in Ruby and an alternative to Ruby web application frameworks such as Ruby on Rails, Merb, Nitro, and Camping.
By default, Sessions are disabled in Sinatra.You need to enable them and then use the session hash from routes and views. Below code shows how to enable, set or get a session in Sinatra.
//Enabling Session

enable :sessions

get '/foo' do
  // setting session value
  session[:message] = 'Hello World!'
  redirect to('/bar')

get '/bar' do
 // getting session value
  session[:message]   # => 'Hello World!'
Rack:: Flash is used to flash a message in Sinatra.
Example Usage :
require 'sinatra/base'
require 'rack-flash'

class MyApp < Sinatra::Base enable :sessions use Rack::Flash post '/set-flash' do # Set a flash entry flash[: notice] = "Thanks for signing up!" # Get a flash entry flash[:notice] # => "Thanks for signing up!"
    # Set a flash entry for only the current request[: notice] = "Thanks for signing up!"
The request object probably has what you’re looking for:
get '/hello-world' do
  request.path_info   # => '/hello-world'
  request.fullpath    # => '/hello-world?foo=bar'
  request.url         # => ''