笹田  晃

笹田 晃

1594305660

【rails】Herokuにデプロイできない|teratail

前提・実現したいこと

Ruby on railsで作成したアプリケーションをHerokuにデプロイしたいです。

発生している問題

GithubとHerokuを接続して手動展開しようとするとエラーが発生する。

エラーメッセージ

-----> Ruby app detected
-----> Installing bundler 2.0.2
-----> Removing BUNDLED WITH version in the Gemfile.lock
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.6.6
###### WARNING:
       Removing `Gemfile.lock` because it was generated on Windows.
       Bundler will do a full resolve so native gems are handled properly.
       This may result in unexpected gem versions being used in your app.
       In rare occasions Bundler may not be able to resolve your dependencies at all.
       https://devcenter.heroku.com/articles/bundler-windows-gemfile
-----> Installing dependencies using bundler 2.0.2
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4
       Fetching gem metadata from https://rubygems.org/.............
       Fetching gem metadata from https://rubygems.org/.
       Resolving dependencies....
       Using rake 13.0.1
       Using concurrent-ruby 1.1.6
       Using minitest 5.14.1
       Using thread_safe 0.3.6
       Fetching zeitwerk 2.3.0
       Using builder 3.2.4
       Using erubi 1.9.0
       Using mini_portile2 2.4.0
       Using crass 1.0.6
       Using rack 2.2.2
       Using nio4r 2.5.2
       Using websocket-extensions 0.1.4
       Using mimemagic 0.3.5
       Using mini_mime 1.0.2
       Fetching public_suffix 4.0.5
       Using execjs 2.7.0
       Using bcrypt 3.1.13
       Fetching bindex 0.8.1
       Installing zeitwerk 2.3.0
       Installing bindex 0.8.1 with native extensions
       Installing public_suffix 4.0.5
       Fetching popper_js 1.16.0
       Installing popper_js 1.16.0
       Using rb-fsevent 0.10.4
       Using ffi 1.12.2
       Using bundler 2.0.2
       Fetching regexp_parser 1.7.0
       Installing regexp_parser 1.7.0
       Fetching childprocess 3.0.0
       Installing childprocess 3.0.0
       Using coffee-script-source 1.12.2
       Using method_source 1.0.0
       Using thor 1.0.1
       Using duktape 2.3.0.0
       Using pg 1.2.3
       Fetching puma 3.12.6
       Installing puma 3.12.6 with native extensions
       Fetching rubyzip 2.3.0
       Installing rubyzip 2.3.0
       Using tilt 2.0.10
       Using turbolinks-source 5.2.0
       Using i18n 1.8.2
       Using tzinfo 1.2.7
       Using nokogiri 1.10.9
       Using rack-test 1.1.0
       Fetching websocket-driver 0.7.2
       Installing websocket-driver 0.7.2 with native extensions
       Using sprockets 3.7.2
       Using marcel 0.3.3
       Using mail 2.7.1
       Fetching autoprefixer-rails 9.7.6
       Installing autoprefixer-rails 9.7.6
       Using uglifier 4.2.0
       Using rb-inotify 0.10.1
       Fetching addressable 2.7.0
       Installing addressable 2.7.0
       Using coffee-script 2.4.1
       Fetching selenium-webdriver 3.142.7
       Installing selenium-webdriver 3.142.7
       Using turbolinks 5.2.1
       Fetching activesupport 6.0.3.1
       Installing activesupport 6.0.3.1
       Fetching tzinfo-data 1.2020.1
       Installing tzinfo-data 1.2020.1
       Using loofah 2.5.0
       Fetching xpath 3.2.0
       Installing xpath 3.2.0
       Using sass-listen 4.0.0
       Fetching webdrivers 4.3.0
       Installing webdrivers 4.3.0
       Using rails-dom-testing 2.0.3
       Using globalid 0.4.2
       Fetching activemodel 6.0.3.1
       Installing activemodel 6.0.3.1
       Using jbuilder 2.10.0
       Using rails-html-sanitizer 1.3.0
       Fetching capybara 3.32.2
       Installing capybara 3.32.2
       Using sass 3.7.4
       Fetching activejob 6.0.3.1
       Installing activejob 6.0.3.1
       Fetching activerecord 6.0.3.1
       Fetching actionview 6.0.3.1
       Installing activerecord 6.0.3.1
       Installing actionview 6.0.3.1
       Fetching bootstrap 4.1.3
       Installing bootstrap 4.1.3
       Fetching actionpack 6.0.3.1
       Installing actionpack 6.0.3.1
       Fetching actioncable 6.0.3.1
       Fetching activestorage 6.0.3.1
       Fetching actionmailer 6.0.3.1
       Installing actionmailer 6.0.3.1
       Installing actioncable 6.0.3.1
       Installing activestorage 6.0.3.1
       Fetching railties 6.0.3.1
       Using sprockets-rails 3.2.1
       Fetching actiontext 6.0.3.1
       Fetching actionmailbox 6.0.3.1
       Installing railties 6.0.3.1
       Installing actiontext 6.0.3.1
       Installing actionmailbox 6.0.3.1
       Fetching coffee-rails 5.0.0
       Using jquery-rails 4.4.0
       Using jquery-ui-rails 6.0.1
       Fetching rails 6.0.3.1
       Fetching rails-i18n 6.0.0
       Installing coffee-rails 5.0.0
       Installing rails 6.0.3.1
       Using sass-rails 5.1.0
       Fetching web-console 4.0.2
       Installing rails-i18n 6.0.0
       Installing web-console 4.0.2
       Bundle complete! 20 Gemfile dependencies, 80 gems now installed.
       Gems in the groups development and test were not installed.
       Bundled gems are installed into `./vendor/bundle`
       Removing arel (9.0.0)
       Removing bootsnap (1.4.6)
       Removing request_store (1.5.0)
       Removing activemodel (5.2.4.2)
       Removing activerecord (5.2.4.2)
       Removing multi_json (1.14.1)
       Removing gon (6.3.2)
       Removing activejob (5.2.4.2)
       Removing actioncable (5.2.4.2)
       Removing websocket-driver (0.7.1)
       Removing actionpack (5.2.4.2)
       Removing rails-i18n (5.1.3)
       Removing actionview (5.2.4.2)
       Removing railties (5.2.4.2)
       Removing actionmailer (5.2.4.2)
       Removing rails (5.2.4.2)
       Removing msgpack (1.3.3)
       Removing puma (3.12.4)
       Removing activesupport (5.2.4.2)
       Removing activestorage (5.2.4.2)
       Removing coffee-rails (4.2.2)
       Bundle completed (11.41s)
       Cleaning up the bundler cache.
-----> Installing node-v10.15.3-linux-x64
-----> Detecting rake tasks
-----> Preparing app for Rails asset pipeline
       Running: rake assets:precompile
       Web Console is activated in the production environment. This is
       usually a mistake. To ensure it's only activated in development
       mode, move it to the development group of your Gemfile:

           gem 'web-console', group: :development

       If you still want to run it in the production environment (and know
       what you are doing), put this in your Rails application
       configuration:

           config.web_console.development_only = false
 !
 !     Precompiling assets failed.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed

以下のようなエラーメッセージが表示されます。

What is GEEK

Buddha Community

【rails】Herokuにデプロイできない|teratail

Ruby on Rails Development Services | Ruby on Rails Development

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Marcelle  Smith

Marcelle Smith

1598839653

Authenticating Your API Using "Knock Gem" in Rails

Due to the inability to generate a well-defined way to authenticate rails API, I have sourced out this information in order to help me and you have a way of authenticating our rails API token. This tutorial would be based on the latest version (6.0) of Ruby on Rails.

In getting this set up as well as up and doing, the few steps through which the processes would be implemented are listed below:

Step 1:

We would need to, first of all, generate a new rails app as we embark on the journey. Follow the example given below:

$ rails new sample-app --api -d=postgresql -T
$ cd sample-app
$ rails db:create
$ rails db:migrate

Step 2:

In order to gain access to the API, we would need to uncomment or remove Cors gems as that serves as permission into gaining access to the API

gem “rack-cors”

After uncommented the gem ‘rack-cors’ then we run this command below

$ bundle install

#ruby-on-rails #rails #rails-api #knock-gem #ruby #software-development #rails-only-api

Emily Johnson

1599568900

Hire Ruby on Rails Developer | Hire RoR Developer

Are you looking for Ruby on Rails developers for building next-generation web applications?

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ruby on rails development

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Shardul Bhatt

Shardul Bhatt

1618576835

Why should we use Ruby on Rails for Software Development?

What is Rails, Ruby on Rails?

Rails is a server-side web application development framework written in the Ruby programming language. Its emergence in 2005 has influenced and impacted web application development to a vast range, including but not limited to seamless database tables, migrations, and scaffolding of views. In the simplest understanding, Rails is a highly productive and intuitive software developer. 

Websites and applications of any complexity can be achieved with Ruby on Rails. The software is designed to perceive the needs of ruby on rails developers and encourage them with the best way out. It is designed to allow developers to write lesser code while spiking productivity much more than any other framework or language. Ruby on Rails rapid application development offers everyday web development tasks easier and uniquely out-of-the-box, both with the same effectiveness.

The Ruby on Rails framework is based on two philosophies:

 

  • Don’t Repeat Yourself (DRY): It is a software development principle that ensures that every piece or entity of knowledge must be assigned with a single and unambiguous representation within a development system.

    It not only reduces the need to write lengthy codes but also eliminates the repetitive writing of codes. As a result, it provides a much more manageable web app development with the least possible bugs.

 

  • Convention over Configuration (CoC): It indicates the highly opinionated feature that the Ruby on Rails framework possesses. It offers ready-made solutions or the “best way out” for many tasks in a web application and defaults them to the convention without the need for external specification. The programmer using the software is required to specify only the unconventional aspects of the web application. 

Some of the commonly known websites built by the Ruby on Rails software developers are Instacart, Scribd, Shopify, Github, ConvertKit, Soundcloud, GoodReads, Airbnb. It finds its application in Sa-as Solutions, Social Networking Platforms, Dating websites, Stock Exchange Platforms, etc.  

Read more: Why Ruby on Rails is Perfect for eCommerce Web Development

Why use Ruby on Rails: The multifold benefits

  • Community and its abundant resources 

    • There is a large community that is dedicated to Ruby on Rails that keeps it up-to-date and indeed encourages its family of developers to continue using it. They make sure the benefits are soaring with every update they make. 

    • The community is committed to developing several ready-to-use code packages, commonly known as gems, for its users. They discuss and announce new project launches, help each other with queries, and engage in framework discussions and betterment. While Ruby on Rails helps developers in rapid application development, it also connects and grows businesses together.

  • Project Scalability

    • To talk about scalability, we indicate the ability to grow and manage more and more user requests per minute (RPM). However, this depends on the architecture rather than the framework. The right architecture of Ruby on Rails web application development allows it to write bulky codes and programs as compared to early-stage difficulties with scalability. 

    • It uses the Representational State Transfer (REST) architecture. This will enable Rails to create efficient web applications based on Rails 6, launched last year in 2020, which addresses most scalability issues. The portable components are agile and help in a better understanding of new requirements and needful adaptations for any business. The framework and architecture allow both vertical and horizontal scalability.

  • Fast Application Development and Cost Effectiveness

    • Ruby on Rails is lucid, logical, and has lean code requirements, thereby cutting down redundancy and improving the overall development speed. Lesser amount of code is proportional to lesser time investment with optimal results. The more time it takes for development, the more expensive it becomes for the end customers.

    • Considering the ready-made code modules/packages (gems) available, Ruby on Rails development company will less time and money are spent creating and modifying Rails websites and applications. Another advantage that has made Ruby on Rails super attractive for startups is its use of Model-View-Controller (MVC) architecture. It has a component separation scheme that speeds up the web development process and fixes any errors that occur.  

  • Data Protection

    • Rails framework and the Ruby on Rails community put in a lot of efforts for data protection and security of its customer base. It is also one of the efficient frameworks for developing database-backed applications. 

    • The developers at Ruby on Rails cover many aspects of cybersecurity, including encryptions of  passwords, credit card information, and users’ personal database. Special measures are taken to prevent the framework from SQL injections and XSS attacks. 

  • Ruby on Rails Enterprise Application Development

    • Ruby on Rails simplifies the daily operations and lowers the cost of enterprise app developments. The prominent features include data management, seamless updating of applications, easy and efficient code development, and high scalability, as discussed above. 

    • Ruby on Rails enterprise application development is preferred by companies and is slightly cost-intensive. It can be easily integrated with third-party apps like Oracle Business, Oracle, Windows services, and others. Ruby enterprise app development allows the developers and programmers to solve the problems at the root level, given its transparency.

Ruby on Rails V/S Django

Checkout Blog on Django vs Ruby on Rails Comparison

Bottom Line

There are several reasons to prefer Ruby on Rails discussed above and extend further to early detection of errors, reduced time to market, and easy adaptation for API developments. It makes web programming much easier and simplifies website building of any complexity. Its flexibility and acceptance among new developers and programmers make it the perfect, one-stop choice for software application development company in 2021. 

Source: https://techsite.io/p/2121044

#ruby on rails examples #ruby on rails rapid application development #ruby on rails web application development #ruby on rails software developer #ruby on rails enterprise application development

Emily Johnson

1615978073

How You Can Reduce Ruby on Rails Maintenance Cost?

https://www.bacancytechnology.com/blog/ruby-on-rails-maintenance

#ruby on rails maintenance cost #ruby on rails maintenance #ruby on rails #ror #ruby #rails