Class: RubyAPI::App

Inherits:
Object
  • Object
show all
Includes:
DI, ErrorHandler
Defined in:
lib/fastrb.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from DI

included

Methods included from ErrorHandler

#error_handlers, extended, included, #rescue_from

Constructor Details

#initialize(&block) ⇒ App

Returns a new instance of App.



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# File 'lib/fastrb.rb', line 30

def initialize(&block)
  @router = Router.new
  @config = Config.new
  @container = Container.new
  @middlewares = []
  @before_hooks = []
  @after_hooks = []
  @error_handlers = {}
  @plugins = []
  instance_eval(&block) if block
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/fastrb.rb', line 28

def config
  @config
end

#container ⇒ Object (readonly)

Returns the value of attribute container.



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# File 'lib/fastrb.rb', line 28

def container
  @container
end

#router ⇒ Object (readonly)

Returns the value of attribute router.



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# File 'lib/fastrb.rb', line 28

def router
  @router
end

Instance Method Details

#after(&hook) ⇒ Object 



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# File 'lib/fastrb.rb', line 92

def after(&hook)
  @after_hooks << hook
end

#before(&hook) ⇒ Object 



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# File 'lib/fastrb.rb', line 88

def before(&hook)
  @before_hooks << hook
end

#call(env) ⇒ Object 



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# File 'lib/fastrb.rb', line 114

def call(env)
  req = Rack::Request.new(env)
  path = req.path_info
  method = req.request_method.upcase

  if path == "/openapi.json"
    return serve_openapi
  end

  if path == "/docs"
    return serve_swagger_ui
  end

  route = @router.find(method, path)

  if route && route[:websocket] && env["HTTP_UPGRADE"]&.downcase == "websocket"
    return handle_websocket(env, route)
  end

  ctx = Context.new(req, route || dummy_route(req))

  @before_hooks.each do |hook|
    hook.call(ctx)
    if ctx.response_status
      return error_response(ctx)
    end
  end

  return [404, { "content-type" => "application/json" }, ['{"error":"Not Found"}']] unless route

  ctx.apply_param_types!
  return error_response(ctx) if ctx.response_status

  if route[:body]
    ctx.validate_body!(route[:body])
    return error_response(ctx) if ctx.response_status
  end

  session = Session.new(req, secret_key: @config.get(:secret_key))
  ctx.session = session

  inject_deps(ctx, route)
  return error_response(ctx) if ctx.response_status

  begin
    result = route[:block].call(ctx)
  rescue => e
    handler_status = find_error_handler(e)
    if handler_status
      set_session_cookie(ctx, session)
      return [handler_status, { "content-type" => "application/json" }, [JSON.generate({ error: e.class.name, message: e.message })]]
    end
    raise e
  end

  @after_hooks.each { |hook| hook.call(ctx) }
  ctx.response_body = result if result && !ctx.response_body

  set_session_cookie(ctx, session)
  serialize_response(ctx)
end

#delete(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 58

def delete(path, **opts, &block)
  @router.add_route(:DELETE, path, **opts, &block)
end

#get(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 42

def get(path, **opts, &block)
  @router.add_route(:GET, path, **opts, &block)
end

#group(prefix, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 78

def group(prefix, &block)
  @router.push_prefix(prefix)
  instance_eval(&block)
  @router.pop_prefix(prefix)
end

#head(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 66

def head(path, **opts, &block)
  @router.add_route(:HEAD, path, **opts, &block)
end

#options(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 62

def options(path, **opts, &block)
  @router.add_route(:OPTIONS, path, **opts, &block)
end

#patch(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 54

def patch(path, **opts, &block)
  @router.add_route(:PATCH, path, **opts, &block)
end

#plugin(name_or_klass, **opts) ⇒ Object 



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# File 'lib/fastrb.rb', line 96

def plugin(name_or_klass, **opts)
  klass = name_or_klass.is_a?(Class) ? name_or_klass : PluginRegistry.find(name_or_klass)
  return unless klass

  old_options = klass.options.dup
  opts.each { |k, v| klass.option(k, v) }

  @plugins << klass
  klass.on_load(self)
rescue => e
  klass.options.replace(old_options) if old_options
  raise e
end

#post(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 46

def post(path, **opts, &block)
  @router.add_route(:POST, path, **opts, &block)
end

#put(path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 50

def put(path, **opts, &block)
  @router.add_route(:PUT, path, **opts, &block)
end

#register(name, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 110

def register(name, &block)
  @container.register(name, &block)
end

#route(method, path, **opts, &block) ⇒ Object 



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# File 'lib/fastrb.rb', line 70

def route(method, path, **opts, &block)
  @router.add_route(method, path, **opts, &block)
end

#use(middleware, *args) ⇒ Object 



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# File 'lib/fastrb.rb', line 84

def use(middleware, *args)
  @middlewares << [middleware, args]
end

#websocket(path, &handler) ⇒ Object 



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# File 'lib/fastrb.rb', line 74

def websocket(path, &handler)
  @router.add_route(:GET, path, websocket: true, block: handler)
end