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DRUMKIT

Mercure hub, in PHP.

Discover Mercure: The best way to discover Mercure is to run the server in dev mode with active subcription. This enables all the features including a UI (you'll be redirected on) where you can quickly test mercure locally.

How to run it

The easiest way is probably to run it in docker:

docker run \
    -e DRUMKIT_TLS_KEY=/ssl/mercure-router.local-key.pem \
    -e DRUMKIT_TLS_CERT=/ssl/mercure-router.local.pem \
    -e DRUMKIT_CORSORIGIN=mercure-router.local \
    -e DRUMKIT_SECURITY_PUBLISHER_KEY='!ChangeThisMercureHubJWTSecretKey!' \
    -e DRUMKIT_SECURITY_SUBSCRIBER_KEY='!ChangeThisMercureHubJWTSecretKey!' \
    -v ./ssl:/ssl \
    --rm -it nekdev/drumkit

Please notice that you must provide SSL certificates to run drumkit.

You may want to use mkcert to quickly generate certificates in local:

# Generate a certification and install it in your browsers
mkcert -install

# Create a certificate for mercure-router.local
# Change the value of the option corsOrigin to make it work with DRUMKIT
mkcert -cert-file ssl/mercure-router.local.pem -key-file ssl/mercure-router.local-key.pem "mercure-router.local"

Prepare dev environment

make configure-dev
composer install
# To avoid SSL issues, use this domain which is the one configured in the makefile
echo "127.0.0.1	mercure-router.local" | sudo tee --append /etc/host > /dev/null

Run it with:

./bin/drumkit \
    --tls-cert=ssl/mercure-router.local.pem \
    --tls-key=ssl/mercure-router.local-key.pem \
    --security-publisher-key='!ChangeThisMercureHubJWTSecretKey!' \
    --security-subscriber-key='!ChangeThisMercureHubJWTSecretKey!' \
    --corsOrigin=mercure-router.local \
    [--dev]

Then open https://mercure-router.local in your browser.

If you are running the command with --dev option, you should be redirected to https://mercure-router.local/.well-known/mercure/ui/

ℹ️ You can also use a file to configure DRUMKIT, see documentation for more information.

Roadmap for v1.0.0

  • Support Redis as event storage
  • Add no-ssl option (to make it possible to run it behinds a proxy easily)

Running in production

Read this: https://amphp.org/production or use the docker implementation.

Backward compatibility promise

This project is NOT designed to be used as a library. It provides a single node mercure server.

This is why no backward compatibility is provided on any class ATM.

But you can expect no behavior change in minor version, including:

  • Configuration files format
  • Command options

This project follows semver and so we may break any of the previous statement on major version learn more in the CHANGELOG.md file provided as well.