Introduction to Mercure

Discover Mercure protocol basics and learn how to use it with PHP via Symfony and API Platform

800€/ attendee

Practical information

1 day
On site
Schedules 9:00-12:30 / 13:30 - 17:00
Training rooms accessible to people with reduced mobility

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Goals

Mercure is a protocol for delivering real-time data updates to web browsers (or other HTTP clients) in a reliable, fast, and energy-efficient way. Mercure is useful for publishing real-time updates on resources exposed through web APIs.

Prerequisites

Working knowledge of PHP and OOP
Own laptop

Program

Introducing the protocol

Use cases

Live availability
Asynchronous work
Collaborative editing

Similarities and differences with prior protocols

With Server-Sent Events
With Websocket
With Websub
With Webpush

Introducing HTTP/2 and its use in Mercure

Introducing HTTP/3 and its use in Mercure

The hub

Classic install
Docker install
Kubernetes install
Automatic support for HTTP/2 and HTTPS (via Let’s Encrypt)
Configuation
Alternative implementation (node.js hub)

Client side

Javascript : the EventSource class
Cross-domain cookies considerations
Configuring CORS
Polyfill for old browsers

Authorisation

Introducing Mercure authorization mechanics
Introducing JWT tokens format
Targets
Publishing rights
Subscribing rights
Authorisation via cookies
Authorisation via HTTP headers

Mercure and the APIs

Reminders on REST, HATEOAS and Hypermedia
Introduction to Mercure auto-discovery mechanics via Web Linking
Using Mercure for GraphQL subscriptions

Mercure Integration within major frameworks and languages

API-Platform and Symfony example (PHP, via Hub)
Node.js example (via Hub)
Without hub using Go
Without hub using Node.js

End to end encryption

Our trainers

Discover our team !

Antoine BLUCHET

Principal developer

Full-Stack expert, Antoine has been contributing to Open Source software for almost 10 years. Author and maintainer of JavaScript modules, he also contributes to Symfony or API Platform. He also masters Node.js and many JavaScript frameworks (Nest, Angular, React). As an architect, implementing and supporting teams on these technologies are his daily job. He is also a trainer, blogger and speaker.

Grégoire HÉBERT

Principal developer

Specialist of PHP with Symfony and API Platform, author of a book on REST, speaker and teacher, Grégoire likes to share his skills in order to set up qualitative projects thanks to his 10 years of experience in development, consulting, audit and architecture.

Kévin DUNGLAS

CEO

Kévin is the founder of Les-Tilleuls.coop. He’s a member of Symfony’s core-team and the creator of the API Platform framework. He’s a contributor to over a hundred Open Source projects, and is also a conference speaker, an article and technical book writer as well as a lecturer at Lille University.

Our trainings