Become an Express.js Expert: Comprehensive Online Training Course

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Express.js Course Overview

Express.js is a popular, open-source web application framework for Node.js. It provides a minimal and flexible structure for building web applications and APIs. Express.js is based on the middleware pattern, which means that it processes incoming requests through a series of middleware functions before sending a response. This allows for easy handling of tasks such as routing, error handling, and request/response processing.
Express.js is built on top of Node.js, so you need to have basic knowledge of Node.js before diving into Express.js. It also uses JavaScript, so it's a great choice for developers who already have experience with JavaScript.
Target Audience:
The target audience for Express.js would primarily be web developers who are interested in building web applications and APIs using Node.js. This would include both front-end and back-end developers who are looking for a minimal and flexible framework for building web applications and APIs. Additionally, Express.js could also be a good choice for developers who are already familiar with JavaScript and have experience with Node.js and are looking to build web applications and APIs using these technologies.
Learning Objectives:
  • Understanding the basics of Express.js, including how to set up a web server, handle requests, and send responses.
  • Familiarity with the routing capabilities of Express.js, including how to handle different types of requests (GET, POST, etc.) and how to handle parameters in the URL.
  • Knowledge of how to use middleware in Express.js, including how to create custom middleware functions and how to use third-party middleware modules.
  • Familiarity with Express.js' built-in support for handling cookies and sessions, and how to use them to authenticate users.
  • Understanding of how to test and debug Express.js applications and how to troubleshoot common issues.
  • Familiarity with the most common use cases for Express.js, such as building RESTful APIs and serving static files.
  • Knowledge of how to use Express.js in conjunction with other technologies, such as MongoDB, to build complete web applications.
  • Understanding of best practices and design patterns for building scalable and maintainable Express.js applications.
  • Familiarity with the Express.js community, its ecosystem, and its documentation.

The 1-on-1 Advantage

Get 1-on-1 session with our expert trainers at a date & time of your convenience.

Flexible Dates

Start your session at a date of your choice-weekend & evening slots included, and reschedule if necessary.

4-Hour Sessions

Training never been so convenient- attend training sessions 4-hour long for easy learning.

Destination Training

Attend trainings at some of the most loved cities such as Dubai, London, Delhi(India), Goa, Singapore, New York and Sydney.
Live Online Training (Duration : 16 Hours)
We Offer :
  • 1-on-1 Public - Select your own start date. Other students can be merged.
  • 1-on-1 Private - Select your own start date. You will be the only student in the class.

950 + If you accept merging of other students. Per Participant & excluding VAT/GST
4 Hours
8 Hours
Week Days

Start Time : At any time

12 AM
12 PM

1-On-1 Training is Guaranteed to Run (GTR)
Group Training
850 Per Participant & excluding VAT/GST
12 - 13 Jun
09:00 AM - 05:00 PM CST
(8 Hours/Day)
03 - 04 Jul
09:00 AM - 05:00 PM CST
(8 Hours/Day)
Course Prerequisites
  • A solid understanding of JavaScript, including concepts such as variables, functions, objects, and arrays.
  • Familiarity with Node.js and its core modules, as Express.js is built on top of Node.js.
  • Familiarity with web development concepts, such as the HTTP protocol, web servers and routing.
  • Familiarity with web development tools such as npm, webpack and babel.
  • Familiarity with middleware pattern, which is a common pattern used in modern web development.
  • Familiarity with Git, which is a version control system used to manage code changes.
  • Familiarity with the command line, as Express.js uses command line tools to create, build, and deploy applications.
  • Familiarity with web development tools, such as Postman, that can help in testing and debugging web applications.


Yes, fee excludes local taxes.
Yes, we do.
Schedule for Group Training is decided by Koenig. Schedule for 1-on-1 is decided by you.
In 1 on 1 Public you can select your own schedule, other students can be merged. Choose 1-on-1 if published schedule doesn't meet your requirement. If you want a private session, opt for 1-on-1 Private.
1-on-1 Public - Select your start date. Other students can be merged. 1-on-1 Private - Select your start date. You will be the only student in the class.
Yes, course requiring practical include hands-on labs.
You can buy online from the page by clicking on "Buy Now". You can view alternate payment method on payment options page.
Yes, you can pay from the course page and flexi page.
Yes, the site is secure by utilizing Secure Sockets Layer (SSL) Technology. SSL technology enables the encryption of sensitive information during online transactions. We use the highest assurance SSL/TLS certificate, which ensures that no unauthorized person can get to your sensitive payment data over the web.
We use the best standards in Internet security. Any data retained is not shared with third parties.
You can request a refund if you do not wish to enroll in the course.
To receive an acknowledgment of your online payment, you should have a valid email address. At the point when you enter your name, Visa, and other data, you have the option of entering your email address. Would it be a good idea for you to decide to enter your email address, confirmation of your payment will be emailed to you.
After you submit your payment, you will land on the payment confirmation screen. It contains your payment confirmation message. You will likewise get a confirmation email after your transaction is submitted.
We do accept all major credit cards from Visa, Mastercard, American Express, and Discover.
Credit card transactions normally take 48 hours to settle. Approval is given right away; however, it takes 48 hours for the money to be moved.
Yes, we do accept partial payments, you may use one payment method for part of the transaction and another payment method for other parts of the transaction.
Yes, if we have an office in your city.
Yes, we do offer corporate training More details
Yes, we do.
Yes, we also offer weekend classes.
Yes, Koenig follows a BYOL(Bring Your Own Laptop) policy.
It is recommended but not mandatory. Being acquainted with the basic course material will enable you and the trainer to move at a desired pace during classes. You can access courseware for most vendors.
Yes, this is our official email address which we use if a recipient is not able to receive emails from our email address.
Buy-Now. Pay-Later option is available using credit card in USA and India only.
You will receive the digital certificate post training completion via learning enhancement tool after registration.
Yes you can.
Yes, we do. For details go to flexi
You can pay through debit/credit card or bank wire transfer.
Dubai, London, Sydney, Singapore, New York, Delhi, Goa, Bangalore, Chennai and Gurugram.
Yes you can request your customer experience manager for the same.
Yes of course. 100% refund if training not upto your satisfaction.

Prices & Payments

Yes of course.
Yes, We are

Travel and Visa

Yes we do after your registration for course.

Food and Beverages



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