#Metaprogramming In Ruby

[ijayaprakashyt]

Ruby Send Metaprogramming Tutorial - Part 2 - Send Method

[billloguidice]

Learn Ruby on Rails with The Pragmatic Programmers Book Bundle!

Learn Ruby on Rails with The Pragmatic Programmers Book Bundle! #sale #ruby #rubyonrails #rails #microservices #book #education #learning #coding #programming #software #ebook

Check out the three book bundle options at this link. Want to write powerful, easy-to-maintain code with the Ruby programming language? Looking to create great web apps quickly with Rails? This bundle of books from the experts at Pragmatic Programmers will get you on track! Explore topics like metaprogramming, optimization, testing, sustainable development, and much more, and help support Active…

[jiskblr]

I'm not sure if you could reduce the flexibility of Ruby's metaprogramming without touching the core OOP, but I think it would be a good thing if you could.

It's easy to mess around with everything, and so people do, and they create appalling edifices that follow completely different design philosophies from the tools they used to make them (e.g. Rails) and from each other, and then try to use them all at once, resulting in systems no one understands because there are several different conflicting logics underlying them and no one can hold all those logics in their head at once.

My hot take is that OOP is good actually, but Java and C++ are not OOP, and are in fact bad for most of the same reasons that OOP is good

[techwebdevelopment]

"Meta or not to Meta" programming in Ruby

In the ever-evolving landscape of Ruby on Rails, how we choose to handle code can be as diverse as the developers themselves. Recently, my exploration into refactoring Rails helper to generate UI component names dynamically, led me down the path of metaprogramming – a powerful, dynamic tool that Ruby handles with elegance. My latest blog […] The post "Meta or not to Meta" programming in Ruby appeared first on TECH - WEB DEVELOPMENT NEWS. https://tech-webdevelopment.news-6.com/meta-or-not-to-meta-programming-in-ruby/

[webcoderph]

Metaprogramming

[jetstudies]

Ever since I moved to this new town, I’ve been having a hard time making new friends.

Honestly though, I had a hard time making new friends back when I was living in my home town. I usually have a close group of friends and stay within that small, social circle. But this year, I am trying to expand that group. And I am running into challenges. So, for the mean time, books are my friend. And I am okay with that. I just have to take life day by day. I put myself out there, but don’t put too much stake into who responds back.

Anyway, I keep myself busy with my “Start Where You Are” Journal which is a reflective journal with prompts and quotes. “Do One Thing Every Day That Centers You” is a mindfulness and small prompt journal with quotes. You are meant to answer with a short sentence and that, actually, is quite challenging to me haha. And then, of course, Becoming by Michelle Obama. My mentor let me borrow Metaprogramming Ruby which I have only read a few pages of but am so eager to dive into that this weekend.

I’m listening to Bon Iver by Bon Iver this weekend. Have a great Sunday.

[abhisheksurde]

Top Reasons to Migrate from Monolithic Apps to Ruby on Rails Microservices

In today’s world of rapidly changing business requirements and fast-paced software development, migrating from a monolithic application to a Ruby on Rails microservices can bring several benefits.

Ruby on Rails microservices helps to improve scalability, maintainability, and flexibility and promotes faster deployment.

This blog post explores the benefits of migrating from a monolithic architecture to a Ruby on Rails microservices architecture.

By the end of this post, you will have a good understanding of the benefits of using a microservices architecture and then make an informed decision about whether it is the right choice for your application.

What is Ruby on Rails microservices?

Ruby on Rails microservices refers to a software architecture style. While using Ruby on Rails microservices, an application is divided into smaller components, like modular services that communicate with each other through APIs. Each service runs in its process and communicates with other services through well-defined interfaces, typically using a lightweight mechanism such as an HTTP API.

To implement Ruby on Rails microservices, you can use tools such as Docker and message queues such as RabbitMQ.

Ruby on Rails is well-suited for building microservices because it provides several tools and conventions that make it easy to develop and deploy web applications quickly.

Related Post: Ruby Metaprogramming Explained: Key Aspects and Real-World Examples

What is a Monolithic Rails App?

A monolithic Rails application is a single and large application that contains all the code, resources, and functionality for a web application.

Ruby on Rails web framework is used to develop this kind of application. Ruby on Rails was designed to make it easy to build and maintain web applications.

Since all parts of the application are tightly coupled and depend on each other, monolithic apps do not have the luxury of quick scaling.

Monolithic Rails App vs Ruby on Rails Microservices

There are several key differences between monolithic Rails applications and Ruby on Rails microservices:

FACTORSRUBY ON RAILS MICROSERVICESMONOLITHIC RAILS APPLICATIONS

SCALABILITYMicroservices make it easier to scale different parts of your application separately.In a monolithic application, scaling the entire application can be more difficult because all parts of the application are tightly coupled.

ARCHITECTUREMicroservices are divided into smaller, modular services.Monolithic applications have a single codebase.

DEPLOYMENTIndependent deployment is the key to Microservices.Monolithic applications are deployed as a single unit.

RESILIENCEMicroservices can continue to function if one service fails, resulting in a more resilient system.If a monolithic application fails, the entire application may fail.

FLEXIBILITYMicroservices allow for more flexibility by enabling changes to individual services.It is difficult to make changes to a monolithic application.

REUSABILITYMicroservices can be reused in other projects or applications.Monolithic applications are generally not reusable.

Ruby on Rails framework for microservices

Ruby on Rails is a full-stack framework that provides tools and libraries to help developers build web applications quickly and easily.

Watch out our video on – Why Should You Choose Ruby on Rails for Web Development?

One of the main benefits of using Ruby on Rails for microservices is its focus on convention over configuration. This means that it provides a set of default conventions for file structure, naming, and coding style, making it easier to develop and maintain microservices.

In addition, Ruby on Rails provides a range of tools and libraries that can be useful for building microservices, including

ActiveRecord: A library for working with databases that provides an object-relational mapping (ORM) layer, making it easier to store and retrieve data from the database.

ActionPack: A library that provides tools for building web applications, including controllers, views, and routing.

ActiveSupport: A library that provides a range of utility classes and methods for simplifying tasks in Ruby on Rails applications.

How to use Ruby on Rails Microservices? Explain with a Ruby microservices example

To use Ruby on Rails microservices in your application, you’ll need to follow these steps:

Identify the decoupled-worthy parts of the application:

The first step in using microservices is to identify the various components of an application that you can split into independent services.

For example, suppose you have a monolithic Rails application with a shopping cart feature, a payment gateway, and a product catalogue. You might consider breaking these components into separate microservices since they are relatively self-contained and don’t depend heavily on other parts of the application. You can also hire Ruby on Rails developers at affordable prices to make the best use of this framework and build powerful applications like AirBnB.

Define the boundaries of the microservices:

After identifying the decoupled components, define the boundaries of each microservice by determining the inputs, outputs, data and functionality it will be responsible for each service.

For example, the shopping cart microservice might be responsible for storing and retrieving items in the shopping cart. While the payment gateway microservice might be responsible for processing payments.

Extract the code for the microservices:

After defining the boundaries of the microservices, begin extracting the relevant code into separate repositories or codebases. It involves refactoring the code to ensure that it is independent and self-contained.

For example, you might extract the code for the shopping cart feature into a different repository, and update the code to use an external API to communicate with the payment gateway and product catalogue microservices.

Here is an example of how you might extract the shopping cart feature into a separate microservice:

Set up the infrastructure for the microservices:

Set up the necessary infrastructure to support the microservices, including deployment pipelines, monitoring, and logging. It involves setting up separate environments for each service and configuring the required infrastructure to support them.

Test and deploy the microservices:

The next step is testing and deploying the services.

It involves setting up integration tests to ensure that the services work together as expected and deploying services to production.

Related Post: Top 4 Ruby On Rails Projects For Beginners

Microservice architecture

Microservices architecture is a way of building and deploying applications as a set of independent, self-contained services that communicate with each other through well-defined interfaces.

In a microservices-based architecture, each service is responsible for a specific piece of functionality and designed to be independently deployable and scalable.

REST API with Ruby on Rails

A REST API (Representational State Transfer API) uses HTTP to allow different systems to communicate with others. REST APIs use a set of conventions for making requests and receiving responses, which makes them easy to use and understand.

Ruby on Rails is a popular web development framework that provides tools and libraries for building REST APIs. Here are some steps you can follow to develop a REST API with Ruby on Rails:

Set up a new Rails project:

To get started, you need to create a new Rails project using the rails new command. It creates a new directory with the necessary files and directories for a Rails project.

Define your API endpoints:

Next, you will need to define the endpoints for your API. It involves creating one or more controllers that will handle the different types of requests that your API will support.

For example, you might create a UsersController to handle requests related to user management.

Implement the API logic:

Once you have defined your API endpoints, you will need to implement the logic for your API. This will involve writing code in the controllers and models to handle the different types of requests that your API will support.

Test your API:

Once you have implemented your API, you will want to test it to make sure it is working as expected. You can use tools like Postman or cURL to send requests to your API and verify that it is returning the expected responses.

Deploy your API:

After testing your API and seeing it in action, deploying it to the production environment is the next step. Your clients can use it only after deploying.

Overall, building a REST API with Ruby on Rails is a relatively straightforward process, thanks to the powerful tools and libraries provided by the framework.

Rails microservices authentication

In a Rails microservices architecture, it is important to consider how you will handle authentication and authorization for your services. There are several different approaches you can take to handle authentication in a Rails microservices architecture:

Use a central authentication service:

This service could be implemented using a framework like Devise, and it could store user credentials in a database. Your microservices could then use the central authentication service to authenticate users by sending requests to it.

Use JSON Web Tokens (JWTs):

JWTs are self-contained tokens that contain information about a user, such as their user ID and permissions. You can use JWTs to authenticate users in your microservices by sending a JWT along with each request and then verifying the JWT on the server side.

Use OAuth:

OAuth is a widely used protocol for allowing users to grant access to their resources to third-party applications without sharing their passwords. You can use OAuth to authenticate users in your microservices by having them authenticate with a third-party service, such as Google or Facebook, and then granting your microservices access to their resources.

Related Post: A Detailed Guide on How to Use Ruby Threads

Ruby on Rails Microservices FAQ

What are microservices?

Microservices are a software architecture style in which a single application is composed of small, independent services that communicate with each other through APIs. Each service is responsible for a specific function and can be developed, tested, and deployed independently of the other services.

What is a microservice architecture?

Microservice architecture is a design pattern in which a single application is composed of multiple small, independent services. Each service is designed to handle a specific set of functions and communicates with other services through well-defined interfaces, typically using APIs.

The goal of this architecture is to improve flexibility, scalability, and maintainability by breaking down a monolithic application into smaller, more manageable components.

Why use Ruby on Rails for microservices?

Ruby on Rails is a popular choice for building microservices because it is a powerful and flexible web development framework that allows developers to quickly build and deploy web applications. It has a strong emphasis on convention over configuration, which means that developers can focus on writing code rather than spending a lot of time on boilerplate or configuration tasks.

How do I structure a Ruby on Rails application as a microservice?

There are a few different approaches to structuring a Ruby on Rails application as a microservice.

Approach One is to build a standalone Rails API that handles all the business logic and data persistence, then develop a separate front-end application (such as a single-page application) that consumes the API.

Approach Two is to build each microservice as a separate Rails application and use API gateways to manage communication between them.

How do I deploy Ruby on Rails microservices?

There are many options for deploying Ruby on Rails microservices. You can use containerization technologies like Docker or a cloud platform like Amazon Web Services (AWS) or Google Cloud Platform (GCP). It is crucial to choose a deployment strategy that is scalable, reliable, and easy to maintain.

How do I monitor and debug Ruby on Rails microservices?

There are several tools and techniques available for monitoring and debugging Ruby on Rails microservices. Some options include using logging and error-tracking tools like Logstash and Sentry, as well as using tools like Postman or cURL to test and debug API requests. It’s also important to have monitoring and alerting systems in place to alert you to any issues or problems with your microservices.

What are the benefits of using Ruby on Rails for building microservices?

Ruby on Rails is a popular web framework that provides developers with tools and conventions for building web applications quickly and efficiently.

Some of the benefits of using Ruby on Rails microservices include:

It is easy to learn and use

It has a large, active community of developers

It has a readily available wealth of resources and libraries

It has built-in support for API development and tools and libraries for testing and debugging

It has excellent performance and handles a high volume of requests

How do I test and debug my Ruby on Rails microservices built?

There are many tools and libraries available for testing and debugging microservices built with Ruby on Rails. Some popular options include:

RSpec: A testing framework for Ruby that allows you to write tests for your application and verify that it is working correctly

FactoryBot: A library for generating test data for your application

Pry: A powerful debugging tool for Ruby that allows you to inspect the state of your application and step through the code line by line

Postman: A tool for testing and debugging APIs that allows you to send HTTP requests and inspect the responses

[thothonegan]

Updates for February 2022

This month:

StageRunner gained scripting support. As part of getting the ability to create components via scripting, StageRunner now has callbacks that can be ran by scripting.

Much better ruby handling: exceptions and static methods. Also better enum handling for WolfScript in general.

HGuild: Better support on macOS for using the correct brew on arm64

CatalystCI: Start of support for generating CI on Windows. This involves making it powershell compatible, along with its support scripts. Still ongoing.

mruby now has metaprogramming in its default gems

New REPL tool for WolfScript as part of WolfTool. While very basic, its useful to test and check certain canis features.

LLVM 13.0.1 / mruby 3.0

[ijayaprakashyt]

Learn Ruby - Basics of Metaprogramming with examples | Ruby

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At the Amsterdam Ruby meetup Chris Salzberg has us metaprogramming and PJ Hagerty explores a number of Ruby and Rails frameworks. Powered by AutoBlogger.co

[metricoid-technology-solutions]

Laravel vs. Ruby on Rails

Backend web frameworks include Laravel and Ruby on Rails. Both are well-known in the world of development, but the key distinction between them is the language they use. Laravel is based on PHP, while Ruby on Rails is based on Ruby, and both have a significant community.

Laravel is a sophisticated web application framework for quickly and effectively developing web applications. It can easily customize an internet application without worrying about the cost. It's a PHP-based open-source system that's extremely popular.

Ruby on Rails is one such system that provides the developer with a set of pre-built features, allowing the developer to focus on the business logic rather than the framework's complexities. It might be a Ruby-based server-side web application system.

Differences between Laravel and Ruby on Rails:

Laravel is an open-source MVC-based framework that was published in 2011, whereas Rails is an amazing web application framework that was released in 2008 and is based on MVC.

Laravel is built in PHP and distributed under an MIT license, whereas the Rails framework is written in Ruby and distributed under an MIT license.

Laravel is best suited for enterprise-level projects with complicated business logic to small websites, whereas Rails is best suited for metaprogramming language and small project web applications.

Laravel has several great features, such as Blade, a template engine that can also employ PHP code directly in view, whereas Rails' key feature is its support for third-party plugins, such as Ruby gems, that help with development and are extensively documented.

Laravel is superior for performance and scalability than Rails, which is slower.

With built-in authentication features, Laravel is superior for web applications, although Rails has a superb feature for online applications in the shape of CoffeeScript, a built-in static compilation tool.

Laravel:

It comes with a built-in lightweight template engine for creating layouts. Layouts ranging from simple to complicated can be created using these templates.

Laravel supports MVC architecture and has a number of built-in functions that aid in application efficiency.

Laravel may run several unit tests at the same time, checking for new changes made by the developer.

Laravel's built-in function combines a hash and salted password technique to guarantee strong security.

It includes pre-installed libraries that aid in the application's performance.

Database definitions and schema are maintained in PHP code using Schema Builder. It keeps track of database migrations as well.

Laravel contains a mail class that allows you to send mail from your web application with rich content and attachments.

Ruby on rails:

The symbol garbage collector is a feature of Ruby on Rails that gathers symbols and protects your system from a variety of assaults.

The keyword arguments assist the Ruby application in consuming less memory.

Before Ruby 5, we had to use the gem render anywhere to render views, but with Ruby 5, we can render views from anywhere.

We may tweak the browser's friendly URLs with Ruby.

It lets you add a module before the class to which it was prepended.

Because it loads the entire page from the server, websites can take a long time to reload. Turbolinks 3 just reloads the body content; it does not reload the entire page.

It allows you to create APIs and removes any middleware that isn't required for an application

Rails include a large set of AJAX functions. The AJAX-specific java programming is generated automatically.

https://metricoidtech.com/services/

[w3villatech]

How Ruby on Rails is becoming the top choice of the coders?

Ruby on rails or ROR was first released in August 2014. Ruby on rails makes it easier to build modern web applications. Rails is an MVC framework that provides default structures for a web service, web pages and database. Along with MVC, it also supports software engineering patterns and paradigms like CoC (convention over configuration), DRY (Don't repeat yourself), and the active record pattern.  There are many web apps that build on ROR and some of them are mentioned below:

Github

Basecamp

Airbnb

Square

Shopify, etc

It is apparent that many other languages' frameworks borrow its ideas like Catalyst in Perl, CakePHP, Laravel, and Yii in PHP, Django in Python, Phoenix in Elixir, and sails.js in Node.js. In total 17 versions have been created so far and 6.1 is the latest version. A web application can be developed at least ten times faster with Rails than a typical Java framework and it needs fewer lines of code than other frameworks.

What features make it more productive:

Metaprogramming - This means it allows the ruby ninjas to define and redefine the methods and classes at runtime. Using Metaprogramming , one can create code that is DRY by avoiding repetitions, and more.

Read More:- https://bit.ly/3ftcApC

[online-qualityassignmenthelp]

Elixir assignment help- Functional programming help

New Post has been published on https://qualityassignmenthelp.com/elixir-assignment-help-functional-programming-help/

Elixir assignment help- Functional programming help

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An overview of Elixir programming language 

José Valim brought Elixir into the world in 2011. He had to assemble the new dialect due to the absence of suitable devices to take care of the ruby world’s simultaneousness issues.

In the wake of investing energy considering simultaneousness and circulated-centered dialects, he discovered two dialects that he preferred, Erlang and Clojure, which run in the JVM.

He chose all that he found in the Erlang language (Erlang VM). He despised the things he didn’t see, similar to polymorphism, metaprogramming, and language extendability credits, which Clojure was acceptable at.

Thus, Elixir was brought into the world to have an option for Clojure and a unique language that runs in the Erlang Virtual Machine with great extendibility uphold. 

Remedy has been intended to be extensible, letting engineers typically stretch out the language to specific spaces to build their efficiency.

You may also interested in the following: 

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