Node.js training

This course is taught 100% remote

Last updated on January 31, 2023, 04:04pm

First released in 2009, Node.js has completely revolutionized the perception of JavaScript and server-side software infrastructures. Being extremely performant, nice to use, and blessed with a thriving ecosystem and vigorous community, Node.js now boasts numerous top corporate users and large-scale actors along with impressive performance and lots of success stories.

Check out our new edition, significantly overhauled with a focus on producing modern, performant and secure APIs! As always with Delicious Insights, our sessions massively resort to hands-on practice.

  • ES2017+ (incl. ES0215 modules)
  • Heart of Node (event loop, streams…)
  • npm, modules and scripts
  • MongoDB & Mongoose
  • Test-rich development
  • Modern APIs (REST + GraphQL)
  • Strong security topics
  • In-house and cloud deployment


The Node.js training gives you all the keys to best leverage the power of Node.js by professionalizing and industrializing your JavaScript development practices, with a specific focus on the production of high-quality, latest-generation APIs. It empowers trainees to:

  • know how to install and upgrade Node.js and npm,
  • search for, install and upgrade Node modules,
  • work efficiently with Node thanks to a tooling that enables rapid development cycles,
  • elegantly manipulate complex asynchronous code, notably with the async module and promises,
  • know and leverage core modules built in Node,
  • understand and master pivotal aspects of Node such as events and streams,
  • structure their code using Node best practices, both for the server and client sides,
  • automatically test their code, both with unit and integration tests,
  • produce modern APIs, both as REST and GraphQL
  • Secure their code by following state-of-the-art practices

Please note: the training’s source code is entirely in ES2017+.

As you can see, it’s not just a “simple” technical training, but truly a complete set of know-hows that not only gives you the keys to immediate productivity, but also equips you with the means to write maintainable, high-quality code that’s built to last.

Intended audience

This course targets developers. A decent knowledge of JavaScript is mandatory; anyone already using JavaScript on a daily basis, ideally beyond just jQuery-based stuff, is likely comfortable enough.

However, trainees might want to “study up” ahead of time to make learning all of this easier once attending the training proper. Future trainees will likely benefit from browsing this list of quality contents Christophe compiled; an ES2015-specific list is also available.

This preparation is also quite desirable for back-end developers who have never worked with JavaScript.

Overall, you should:

  • Having already used at least one back-end technology in production (e.g. PHP, Python, Java, .NET, Node.js)
  • Know the fundamentals of JavaScript: variables, data types, loops, functions, the language's standard library at least as of ES3 (1999).

Unless otherwise specified, predefined-dates, multi-client sessions are held in French, so attendees should be reasonably fluent. You are naturally welcome to book custom dates for your company using the link above.

Not sure you’re a good fit?

Let’s check together (FR)


There is no pre-requisite for this training course (as in, verifiably acquired knowledge, through degrees, certifications, tests, etc.).


  1. Getting your bearings

    Hi Node!

    • Installation and upgrade methods
    • Node, a history in 5 minutes
    • My first program
    • Running a JS file
    • A richer example
    • Shebangs and “executable” files

    Node’s module system

    • Configurable modules
    • Deferred initialization
    • Built-in modules
    • Module loaders and alternative syntaxes
    • Module paths and the nitty-gritty about require


    • With Visual Studio Code
    • With Google Chrome
    • A few words on WebStorm et al.
    • Debugging when using nodemon


    • All about automated tests: unit tests, integration tests…
    • A rich test harness with Jest
    • Rich assertions with Chai
    • Mocking methods, objects and modules


    • Module packaging
    • Searching for modules
    • Local installation vs. global installation
    • Production vs. development dependencies
    • The end of version conflicts
    • package.json details

    Some core modules

    • console
    • process and os
    • fs and path
    • util
    • Global objects
    • Quick overview of the other core modules


    • The events module
    • EventEmitter
    • Mixing event handling in existing code
  2. Critical skills

    Asynchronous programming

    • Callbacks
    • “Callback Hell” and “Pyramid of Doom”
    • Mitigating the issue using proper function declarations
    • Node-style callbacks
    • Complex callback combos with async.js
    • Promises: principles, examples and native support
    • “Promisified” classic async APIs
    • async / await

    Streams and buffers

    • Stream types
    • Stream modes and mode switching
    • Buffers
    • Text encodings
    • Pipelining
    • Stream all the things!

    Key security best practices

    • Updating Node itself; regular vs. LTS releases
    • Deprecating risky APIs
    • npm audit, npm audit fix
    • Node Security Project
    • Node Certified Modules
    • Automatic vulnerability auditing on GitHub
    • Install scripts
    • Managing credentials and secrets
    • Choosing your crypto algorithms wisely
    • General data storage principles
    • Third-party attack foiling services
  3. Modern data storage with MongoDB

    • About NoSQL
    • Intro to MongoDB
    • A few words on CouchDB, ElasticSearch, Firebase…
    • MongoDB’s native API
    • Getting comfier with Mongoose
    • A quick tour of GUIs (e.g. dbKoda, Robo 3T, Compass)
  4. Developing a REST API

    • REST principles
    • Hypermedia
    • Versions
    • Content variation
    • Testing a REST API
  5. Developing a GraphQL API

    • A whirlwind tour of GraphQL
    • Designing a useful schema
    • Auditing performance
    • Testing a GraphQL API
  6. Securing an API

    • Request / Query validation
    • Rate limiting: REST and GraphQL variations
    • Authentication: tokens or sessions?
    • About JWT…
    • Authorization
    • 2FA / MFA
    • CORS
  7. Deploying an API server

    • Manually on infrastructure
    • On PaaS: Heroku, Azure, GCP, Now

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  • Every session is held synchronously, “live,” including remote sessions. This is not about pre-recorded videos.
  • We are currently not scheduling new multi-client in-room sessions.
  • Comprehensive course material is provided, acting as a common thread. It usually includes numerous slides and starter codebases or repositories for every exercise and lab.
  • Trainees can ask questions at any time.
  • Sessions always alternate between theory and hands-on labs, in short intervals (5 minutes to 1 hour).
  • Hands-on periods rely on real-world use-cases (which can be bootstrapped through starter codebases, Git repositories or online assignment labs).
  • Hands-on periods may be completed individually or as sub-groups that may vary from one period to the next, to foster pair programming and collaboration.
  • Remote sessions use a Zoom recurring meeting, accessible through a provided link using both the installed app and the pure-web, no-install client. They mostly use features such as video thumbnails, screensharing, chat, breakout rooms and possibly quizzes, annotations and whiteboards.
  • Sessions span 4 consecutive days, adding up to 28 hours of class.
  • The schedule typically runs from 09:45 to 12:45 and from 13:48 to 18:00.
  • For custom dates booked specifically by your company, the schedule can be adjusted to better suit your needs. In particular, we can use half-days locked on reasonable hours in your timezone, e.g. 9a-12:30p EST or 8a-11:30a PST.
  • Training sessions range from 3 to 10 trainees.

Deliverables & assessments

  • Every session half-day requires attendance signing (paper sheet or digital tool). For remote sessions, should a trainee fail to submit their entire attendance sheet in due time, Zoom participant logs will be considered authoritative.
  • At the beginning of every day's first period, we run a “debrief”: during about half an hour, we help collectively resurface skills and knowledge first tackled on the previous day. This helps put everyone back “in the zone,”, consolidate learning and boost group dynamics.
  • Throughout the course, assessment of skill acquisition is done through the successful completion of hands-on labs (exercises, mini-projects, labs, use cases, etc.). Interactive quizzes may supplement this. The trainer remains available for any question during hands-on periods.
  • Should a trainee exhibit significant difficulty, the trainer may opt to provide one-to-one mentoring for a while using the trainee's computer as a working base. This also applies to remote sessions using Zoom's dedicated features (e.g. one-to-one / individual assistance).
  • When the session ends, every trainee may request a completion certificate (or at least attendance certificate) and, for remote sessions financed by a French institutional entity, we issue a standardized completion certificate in order for financing to be able to proceed smoothly.
  • Once the training is over, every trainee receives a link to an online “hot” feedback survey, so they can express, among other things, whether they feel they achieved the stated goals of the training (or believe these will be achieved in the short term).

During the session, trainees receive at the start of every period access to:

  • all the related slides and supporting material in a web-based format, so they can easily follow along,
  • the starter repository for the common-theme app developed throughout the course.

Once the training is done, they also get:

  • an extremely content-rich debrief e-mail,
  • a reference archive with all related slides, finalized codebase with full documentation and tests, and various complementary resources.

Acquired skills are assessed throughout the session, looking for successful completion of the development steps of the common-theme app and the successful execution of automated tests (both trainee-written and provided ones).


Christophe Porteneuve

Christophe Porteneuve

Christophe has been doing professional web work since 1995. He co-created Europe’s first production JSP portal in 1999, moving to J2EE before going with Ruby, Rails and finally Node.js.

A best-selling author of“Bien développer pour le Web 2.0” (“Best practices for modern web development”) at Eyrolles, he also wrote the reference book “Prototype and” at Pragmatic Programmers, articles in various online magazines (most notably the widely-acclaimed A List Apart), and speaks at a number of conferences big and small.

In France, Christophe enjoys a solid reputation of expertise in the areas of front-end web dev (most notably JavaScript), Node.js, Git and Rails.

Christophe is the founder and CTO of Delicious Insights.

Next sessions

(Unless otherwise stated, every session has 4+ seats still available, and is in French; you can naturally book custom dates for your company using the link further below.)


You registerPer trainee
1 to 2 trainees€2,000 net
3 to 5 trainees€1,800 net
6+ trainees€1,600 net

(Any ongoing discount or special offer is not reflected here, but will be automatically applied in the registration form.)

Need an in-house / custom training?

For a bespoke training, tailored to your needs, either at your office, some other place or remotely, please describe your context and needs using the following link.

Usually, the core training cost for doing this training in-house, which is a flat fee based on how many trainees you bring, starts at €10,000 net. For international sessions with fewer trainees, we can trim that down: talk to us!

Request my in-house / custom training

Hardware & software requirements

  • Use a computer of sufficient performance (and provide it for single-client, in-room sessions, so ideally a laptop)
  • Remote sessions: this computer must feature a webcam, mic and audio output.
  • Remote sessions: use an internet connection with sufficient bandwidth (1Mbps+, ideally 5Mbps+), both incoming and outgoing.
  • Remote sessions: be able to run Zoom, either as a desktop install or as the pure-web client. You can test the installed software's configuration here.

Registration & deadlines

Regardless of the modalities you're looking for (single- or multi-client, in-room or remote), your initial request (for quotation or contract) should be made online from the training’s web page. You can find further up contract request links for every available multi-client session, a proposal request button for a single-client session, and for any other enquiry can use the contact button further below. Please favor our online forms as they speed up processing by avoiding numerous e-mail back-and-forths in order for us to get all your necessary information.

For multi-client, fixed-date sessions, we reply to quotation or contract requests within at most 2 business days (and usually within minutes). For single-client, custom sessions, we usually get back to you within 3 business days to fine-tune your requirements and create a bespoke offer.

The e-mails we send to provide quotations or contracts, as well as our online training pages, provide a link to an online survey prospective trainees can use for fit-for-needs assessment; this information should get to us ASAP, ideally before contract signing, so we can verify our training offer is a good match for the audience.

Summons are sent by e-mail no later than 7 days prior to the session, at which time a potential cancellation decision (usually because two few trainees registered) is made. If the session is guaranteed ahead of that deadline, we can send your summons earlier at your request.

For multi-client sessions, you can register online (requesting a contract and sending it back signed by e-mail) until the day before the session starts, provided the required amount of seats remain free. If you finalize your registration after the usual summons-sending deadline, your summons are sent immediately by e-mail.

However, when French nationals contractualize with us in their personal capacity, French law mandates a withdrawal period (10 calendar days for in-room sessions, 14 calendar days for online sessions). In order to allow such clients to register later than this, they are provided an opt-in choice in their contract request online form to waive their withdrawal rights if the schedule requires it.

For French client entities applying for third-party financing (e.g. OPCOs, Pôle Emploi, Regions, EU), it is imperative that financing agreements be sent to Delicious Insights no later than the last day of the training session. Should financing be denied or only partially provisioned, the client is liable for payment of the balance of the fee.

You can find more information on the details of registration, cancelling and getting refunds in our Terms of Sale.


  • 249 trainees
  • 130 ratings
  • 93% trainee satisfaction en Teaching skills
  • 100% trainee satisfaction en Expertise
  • 88% trainee satisfaction en Logistics

Pôle Emploi sees a “correct” return-to-employment rate after that training course.

Disabilities & special needs

The French law dated September 5, 2018 for “freedom to choose one’s professional future” aims to facilitate accessing and retaining a job for people with disabilities or special needs.

Delicious Insights is very keen to help everyone, regardless of their particulars, move forward professionally.

We can often adapt the modalities of our trainings to fit your needs: let's just review your situation together.

Do feel free to get in touch with our point person for Disabilities, Christophe Porteneuve, by e-mail or phone.

Do feel free to get in touch with our point person for Disabilities, Christophe Porteneuve, by e-mail at or phone at +33 662 059 656.

A question, a concern?

Don’t fret, we’re sure to have answers to help put your mind at ease and get a clearer picture. So let’s talk!

Get in touch

Get in touch by e-mail at or call us at +33 662 059 656.


  • Amazing training. The trainer’s ability to track down the origin of a bug near-instantly is quite mind-blowing! Every course item is taught with brio. […] Writing a whole app from scratch, just like the 360° JS training course, feels fantastic.

  • An excellent, crystal-clear, precise and most useful training course. The pace is quite strong, so you must hang on a bit as we go through a large number of concepts, but the trainer is really good at imparting his knowledge and efficiently teaching all this.

    The cost/quality ratio is a real steal, even as a freelancer (with no financial incentive or tax break of any kind).

    A truly pleasant experience, with lots of laughs, much food for thought and great lunches! You come out of this confident and reassured, eager to put all your newfound skills intro practice. I know this sounds very much like a marketing pitch, but I can’t recommend this training enough 😊

    Julien Pouillard – Effigie Créations
  • This training is truly great and ahead of the competition. The trainer has outstanding teaching skills, and the pace is perfect. I recommended this class a lot around me already.

  • You don’t just walk out of this with a better understanding of Node.js, but also a clearer view of the tooling and real-world production use around it. Factor in the great location (Paris 11st), a lovely venue and an excellent trainer, and you’ll have the perfect blend for a content-rich training you won’t regret.

  • Boosted my learning curve by taking me to many places I hadn’t ventured in yet… Node.js runs impeccably… This is just the beginning of the journey… The ecosystem is amazing… All my expectations were met… Node.js is definitely the next big technological leap!

  • A very promising tech… Great technical quality… Fantastic modules… Very beneficial to any web project… All the pieces finally click into place… The training is very thorough and made sense of everything… Discovering Node is truly an energy boost to me as a developer…

  • An efficient and relevant Node.js training, I came out feeling I had made a leap towards tomorrow’s technologies.

  • I heartily recommend this training. But don’t go there unprepared: you’ll get a truckload of knowledge. Great content, outstanding trainer, an an environment honed for efficient learning.