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Contents
require 'connection_pool'
require 'react/server_rendering/exec_js_renderer'
require 'react/server_rendering/bundle_renderer'
module React
module ServerRendering
mattr_accessor :renderer, :renderer_options,
:pool_size, :pool_timeout
self.renderer_options = {}
# Discard the old ConnectionPool & create a new one.
# This will clear all state such as loaded code, JS VM state, or options.
# @return [void]
def self.reset_pool
options = { size: pool_size, timeout: pool_timeout }
@@pool = ConnectionPool.new(options) { self.renderer.new(self.renderer_options) }
end
# Check a renderer out of the pool and use it to render the component.
# @param component_name [String] Component identifier, looked up by UJS
# @param props [String, Hash] Props for this component
# @param prerender_options [Hash] Renderer-specific options
# @return [String] Prerendered HTML from `component_name`
def self.render(component_name, props, prerender_options)
@@pool.with do |renderer|
renderer.render(component_name, props, prerender_options)
end
end
# Yield a renderer for an arbitrary block
def self.with_renderer
@@pool.with { |renderer| yield(renderer) }
end
# Raised when something went wrong during server rendering.
class PrerenderError < RuntimeError
def initialize(component_name, props, js_message)
message = ["Encountered error \"#{js_message.inspect}\" when prerendering #{component_name} with #{props}",
js_message.backtrace.join("\n")].join("\n")
super(message)
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems