Training WebSocket - Develop Scalable Real-Time Apps

$2,310

  • 2 days
  • Onsite
  • 10 people max.
Ref: GUL269
10 people max.
$2,310
In-company rate: from $4,190 for the whole team
On-site and certification exam on quote
2 days
Onsite

Don't let this gap widen

Why this program matters

  • Without advanced WebSocket mastery, your real-time apps crash under load: 40% of connections lost in traffic spikes, data leaks through unsecured channels cost 50k€/an in GDPR fines, latency >500ms drives away 25% of clients (Gartner study), manual scaling blocks growth, competitors like Slack dominate with seamless bidirectionality, revenue stagnates against poor UX, team loses 2 weeks/month on futile debugging.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

40,869 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft

Every program built with a dedicated engineer

  • OpenAI
  • Anthropic
  • Mistral AI
  • NVIDIA
  • Google
  • Amazon Web Services
  • Microsoft Dynamics 365
  • Salesforce
  • ServiceNow
  • SAP
  • Oracle
  • Cisco
  • Fortinet
  • Palo Alto Networks
  • Aruba
  • VMware
  • Red Hat
  • Databricks
  • Snowflake
  • OVHcloud
  • Notion
  • AMD
  • Apple

Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft and Microsoft.

WebSocket training objectives

  • Implement robust WebSocket servers/clients
  • Secure connections with JWT authentication
  • Optimize performance for 10k+ simultaneous connections
  • Manage reconnections, heartbeats, and broadcasting
  • Integrate WebSocket into microservices
  • Deploy with load balancing and Redis Pub/Sub

Program

WebSocket curriculum: 2 modules over 2 days

Module 1 : Advanced Implementation: WebSocket Servers/Clients (Node.js, Socket.io)

Dive into creating performant WebSocket servers with Node.js and Socket.io, configure React clients for smooth bidirectional exchanges, perform exercises on chat rooms and live notifications, test heartbeats for reliability, produce a production-ready functional prototype, while mastering advanced error handling.

Module 2 : Security and Scaling: Authentication, Load Balancing (JWT, Redis)

Secure your streams with JWT and rate limiting, integrate Redis for horizontal scaling, simulate massive loads via Artillery, deploy on Docker with Nginx proxy, analyze metrics via Prometheus, build a scalable real-time dashboard, leave with complete source code and monitoring strategies for critical apps.

How WebSocket skills are assessed

  • Continuous technical quizzes
  • Graded practical exercises
  • Final scalable chat project

How the WebSocket course is taught

  • 70% hands-on with real-world cases
  • 30% applied theory
  • Pro tools: VS Code, Postman

WebSocket training: access and practical arrangements

The Training WebSocket - Develop Scalable Real-Time Apps program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training WebSocket - Develop Scalable Real-Time Apps program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training WebSocket - Develop Scalable Real-Time Apps program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Our method

How Learni guarantees the quality of your WebSocket training

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

WebSocket: frequently asked questions

Which tools are used in WebSocket training?+
Hands-on work runs on node.js, socket.io, JWT and redis. Those tools come from the WebSocket program itself, delivered on site over 2 days, so participants practise on the stack they will use at work.
What can participants do after WebSocket training?+
They can implement robust WebSocket servers/clients, secure connections with JWT authentication and optimize performance for 10k+ simultaneous connections. Those are the stated objectives of the WebSocket program at Advanced level, checked by the end-of-session assessment.
What does the WebSocket program cover, day by day?+
Day 1: Advanced Implementation: WebSocket Servers/Clients (Node.js, Socket.io). Day 2: Security and Scaling: Authentication, Load Balancing (JWT, Redis). The WebSocket program runs over 2 days, delivered on site.
How is WebSocket training assessed?+
Assessment relies on continuous technical quizzes, graded practical exercises and final scalable chat project. Learni issues a completion certificate together with the individual assessment report at the end of the WebSocket program, which an L&D team can file as evidence.
How much does WebSocket training cost per participant?+
WebSocket training costs $2,310 per participant. For an in-company team, the flat rate starts at $4,190 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does WebSocket training take?+
2 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for WebSocket training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before WebSocket training?+
Mastery of JavaScript/TypeScript, REST/GraphQL APIs, experience with Node.js/Spring Boot, HTTP/2 basics.
Is a certificate issued after WebSocket training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for WebSocket training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
Your professional training, anywhere

Let's build your WebSocket learning path.

30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.

Reply within 24h · Vetted experts · USD invoicing · W-9 available
On-site & remote

WebSocket training in your city

Available on-site and remotely. Pick your city to see the local training center.

Share in 2 clicks