Documentation

SSL

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Published 2026-08-01. Current stable documentation.

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1.4.1
1.5
2.0

SSL

For development use self-signed keys and edit config/environments/development.yml

YAML
ssl_key_file: example.key
ssl_cert_file: example.crt

For production, please use CertBot (https://certbot.eff.org) and edit config/environments/production.yml

It is possible to set this in your Amber configure block as well, in config/application.cr

Crystal
Amber::Server.configure do |setting|
  # Server options
  setting.name = "Example web application."
  setting.port = 3000 # Port you wish your app to run
  setting.host = "0.0.0.0"
  setting.ssl_key_file = "example.key"
  setting.ssl_cert_file = "example.crt"
end