All you need to know about Node JS ORM

Sharad Jaiswal
Sharad Jaiswal

Posted On: Sep 16, 2018

 

JS or Javascript is a client side as well as server-side scripting language that runs on web browsers and servers too. On browsers, javascript is used for implementing dynamic visual effects or logical operations on the web page and on the server from creating web services to complete website.

Like human language, this scripting language JS also went through many major and minor evolutions since its origin. Over the past few years, Node js become one of the most attractive and popular among Javascript Frameworks all around the world that is a free open source cross-platform.

However, you are on the right page if you do not have an idea of what Node JS and why it is used then it is all about that. Let us now discuss all the related points one by one for better understanding:

Brief Idea of Node JS:

To be simple, Node JS is the server side programming framework that allows the developers to build servers and other networks using javascript for the first time. This is also a runtime environment – an open cross-platform that easily allows the developers to test any software program, clearing any bugs and errors while it is still running. It gives a brief idea of how that particular software might work or behave once it is been executed. In simple words, Node JS helps to execute Javascript directly on the system without using any browser.

Javascript programmers can use Node JS to build various network programs or servers, real-time data-intensive applications along with real-time web APIs. The reasons for its popularity are the speed and the ease to use features which make Node JS perfect for most of the web server applications.

Below are the few advantages that come from Node JS:

  • Superfast: Being a javascript runtime built on Google Chrome’s V8 Javascript engine Node JS library is very fast in code execution.
  • Event-driven and asynchronous: Every APIs of Node JS are asynchronous or non-blocking in simple terms which means Node JS based servers never wait for an API to return the data.
  • Single threaded yet highly scalable: It follows a single threaded model with an event looping. Node JS is even highly scalable as the event mechanism helps the server to perform in a non-blocking way by making the server highly scalable, unlike the traditional servers that create limited threads to handle all the client requests.
  • Less buffering: Another amazing feature is Node JS applications never buffer any data. It cuts down the overall processing time even while unloading audio or video files.
  • License: It was released under the MIT license.

What is ORM in Node JS?

ORM tool or Object Relational Mapping tool is a computer programming technique or a framework that is used to map, convert and manipulate an object or data to that of a relational database in your computer. ORM is such a computer science technology which helps the developers in maintaining a steady view on the objects even when the sources and applications they access tend to change over the time. In the world of computer programming, Java professionals previously used the techniques of JDBC for data persistence that only includes writing and executing SQL statements to update particular data in the database. Although this JDBC approach was quite popular, the SQL statements were being difficult to read, write and troubleshoot.

ORM or commonly known as Object Relational Mapping flourished into the picture to make computer programming more easy with fewer mistakes. The professional developers can easily build an object model without writing any kinds of SQL statements and they convert or retrieve the data from the database and transfer it into the object model they have made. This is how ORM works precisely.

Benefits of using ORM:

  • ORM mechanism helps to improve the system performance.
  • It is an upgraded solution which makes every application run smooth and fast, maintaining the quality easily.
  • ORM contains much fewer codes as compared to SQL statements before and other handwritten stored operation.
  • Being an object to table and table to object makes ORM result in lower maintenance and development charges or costs.

Pros and Cons of using ORM in Node JS:

In this technical world, everything has its own advantages and disadvantages no matter how perfect the system looks like. Similarly, there are few major pros and cons of using ORM in Node JS. Let us now discuss the all the primary pros and cons below:

Pros of using ORM in Node Js:

  • Easy to learn: Node JS is quite easy to learn and less time-consuming. Javascript is one of most popular programming language for the computer programmers.
  • Easy scalability: Programmers find is easy to scale the applications in both horizontal and vertical directions. It is highly scalable and also offers better options than other javascript servers.
  • High performance: As Node JS is built on Google Chrome’s V8 Javascript engine it becomes easier and faster to implement the Javascript code into the machine code. Node JS offers a high performance supporting the non-blocking I/O operations.
  • Fullstack JS: Node JS is considered as a full stack Javascript for better serving not only the client but also the server side applications. As a result, you do not need to hire any separate developer for both the front end and back end development.
  • Commonly used tabs support: The developers get extended support from various commonly used tabs or tools. For example, if the developers wish to test the source of code of the application in Node js, they can do it by using the Jasmin and other similar unit-testing tools.

Cons of using ORM in Node JS

  • Unstable APIs: This is one of the common drawbacks that the developers face while using Node JS. Application Programming Interface or API is not a stable one rather it tends to change every now and then.
  • Lacks a strong library support system: Node JS does not have a proper library system compared to other computer programming languages which have inbuilt well-equipped library support system. As a result, the developers take help from the common library for tasks like processing of the image, handling database operations, ORM etc.
  • Asynchronous programming model: According to many developers, the asynchronous programming model is much more complicated than linear blocking I/O programming as it makes the code look messy.
  • Not for any complex web application: Node JS never supports both multi-threading programming

Best Node JS ORM that you can use in your next project:

  • Mongoose: Mongoose is a javascript framework, commonly used in Node JS application with a MongoDB object modeling tool that is formed to work in an asynchronous environment
  • Sequelize: Sequelize is another promise-based ORM for Node JS which supports common dialects like MySQL, SQLite, MSSQL and others and it features solid transaction supports, relations along with reading replication and few more.
  • TypeORM: A kind of ORM that runs in not only Node JS but Browser, PhoneGap, Ionic, Electron platforms and others. It always focuses on to support the latest javascript features by providing additional features that help you to develop any kind of application with a database.
  • CaminteJS: It is a CrossDB ORM in Node JS and allows access to the most popular database formats.
  • NodeORM2: NodeORM2 can be regarded as the object relation manager for Node JS. It also works with MySQL, PostgreSQL, and SQLite.
  • Persistence: It is an asynchronous Javascript ORM library that can be used both in any web browser and on other server using Node JS. It provides specialized and persistent data structures built on top of immutable.

Conclusion:

Moreover, the best part is even if you have minimum knowledge regarding JavaScript still it will not take much time to learn Node JS, work with it and be a maestro in it. It the right time to start adapting the new things in life and learn Node JS as it has become widely popular among the coders from every corner of the world.

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