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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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30 free minutes with a training advisor — no commitment.
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Don't let this gap widen
Without Express.js, your Node.js APIs remain slow and vulnerable: 70% of breaches come from poor authentication, according to OWASP.
Lose 20h/week coding routes and middlewares manually, miss 40% of freelance projects due to performance issues.
Blocked teams generate 15k€ monthly losses from delays.
Risk production crashes, unhappy clients, 25% churn.
Invest 7h to boost productivity x3, secure your apps, land missions at 80€/h more.
The Express.js Training - Develop High-Performance REST APIs training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Express.js Training - Develop High-Performance REST APIs training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Express.js Training - Develop High-Performance REST APIs training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Dive into Express.js by installing the framework via npm, create your first server with GET/POST routes, integrate middlewares for security and logging, develop a real e-commerce API case with JWT authentication and Joi validation, test via Postman with interactive exercises, handle advanced errors, and deploy on Heroku to produce a functional deliverable ready to integrate.
Target audience
Junior Node.js developers, backend freelancers, technical leads upskilling.
Prerequisites
Solid foundations in JavaScript ES6+, Node.js, and npm/yarn package management.
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