Class: Eventflit::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/eventflit/client.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Client

Returns a new instance of Client.



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# File 'lib/eventflit/client.rb', line 25

def initialize(options = {})
  default_options = {
    :scheme => 'http',
    :port => 80,
  }
  merged_options = default_options.merge(options)

  if options.has_key?(:host)
    merged_options[:host] = options[:host]
  elsif options.has_key?(:cluster)
    merged_options[:host] = "api-#{options[:cluster]}.eventflit.com"
  else
    merged_options[:host] = "service.eventflit.com"
  end

  # TODO: Change host name when finalized
  merged_options[:notification_host] =
    options.fetch(:notification_host, "push.eventflit.com")

  merged_options[:notification_scheme] =
    options.fetch(:notification_scheme, "https")

  @scheme, @host, @port, @app_id, @key, @secret, @notification_host, @notification_scheme =
    merged_options.values_at(
      :scheme, :host, :port, :app_id, :key, :secret, :notification_host, :notification_scheme
    )

  @http_proxy = nil
  self.http_proxy = options[:http_proxy] if options[:http_proxy]

  # Default timeouts
  @connect_timeout = 5
  @send_timeout = 5
  @receive_timeout = 5
  @keep_alive_timeout = 30
end

Instance Attribute Details

#app_id ⇒ Object

Returns the value of attribute app_id.



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# File 'lib/eventflit/client.rb', line 5

def app_id
  @app_id
end

#connect_timeout=(value) ⇒ Object (writeonly)

Sets the attribute connect_timeout

Parameters:

  • value —

    the value to set the attribute connect_timeout to.



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# File 'lib/eventflit/client.rb', line 7

def connect_timeout=(value)
  @connect_timeout = value
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/eventflit/client.rb', line 5

def host
  @host
end

#http_proxy ⇒ Object

Returns the value of attribute http_proxy.



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# File 'lib/eventflit/client.rb', line 6

def http_proxy
  @http_proxy
end

#keep_alive_timeout=(value) ⇒ Object (writeonly)

Sets the attribute keep_alive_timeout

Parameters:

  • value —

    the value to set the attribute keep_alive_timeout to.



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# File 'lib/eventflit/client.rb', line 7

def keep_alive_timeout=(value)
  @keep_alive_timeout = value
end

#key ⇒ Object

Returns the value of attribute key.



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# File 'lib/eventflit/client.rb', line 5

def key
  @key
end

#notification_host ⇒ Object

Returns the value of attribute notification_host.



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# File 'lib/eventflit/client.rb', line 5

def notification_host
  @notification_host
end

#notification_scheme ⇒ Object

Returns the value of attribute notification_scheme.



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# File 'lib/eventflit/client.rb', line 5

def notification_scheme
  @notification_scheme
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/eventflit/client.rb', line 5

def port
  @port
end

#proxy ⇒ Object (readonly)

Returns the value of attribute proxy.



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# File 'lib/eventflit/client.rb', line 6

def proxy
  @proxy
end

#receive_timeout=(value) ⇒ Object (writeonly)

Sets the attribute receive_timeout

Parameters:

  • value —

    the value to set the attribute receive_timeout to.



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# File 'lib/eventflit/client.rb', line 7

def receive_timeout=(value)
  @receive_timeout = value
end

#scheme ⇒ Object

Returns the value of attribute scheme.



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# File 'lib/eventflit/client.rb', line 5

def scheme
  @scheme
end

#secret ⇒ Object

Returns the value of attribute secret.



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# File 'lib/eventflit/client.rb', line 5

def secret
  @secret
end

#send_timeout=(value) ⇒ Object (writeonly)

Sets the attribute send_timeout

Parameters:

  • value —

    the value to set the attribute send_timeout to.



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# File 'lib/eventflit/client.rb', line 7

def send_timeout=(value)
  @send_timeout = value
end

Class Method Details

.from_env(key = 'EVENTFLIT_URL') ⇒ Object

Loads the configuration from an url in the environment



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# File 'lib/eventflit/client.rb', line 13

def self.from_env(key = 'EVENTFLIT_URL')
  url = ENV[key] || raise(ConfigurationError, key)
  from_url(url)
end

.from_url(url) ⇒ Object

Loads the configuration from a url



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# File 'lib/eventflit/client.rb', line 19

def self.from_url(url)
  client = new
  client.url = url
  client
end

Instance Method Details

#authenticate(channel_name, socket_id, custom_data = nil) ⇒ Hash

Generate the expected response for an authentication endpoint. See docs.eventflit.com/authenticating_users for details.

Examples:

Private channels

render :json => Eventflit.authenticate('private-my_channel', params[:socket_id])

Presence channels

render :json => Eventflit.authenticate('presence-my_channel', params[:socket_id], {
  :user_id => current_user.id, # => required
  :user_info => { # => optional - for example
    :name => current_user.name,
    :email => current_user.email
  }
})

Parameters:

  • socket_id (String)
  • custom_data (Hash) (defaults to: nil) —

    used for example by private channels

Returns:

  • (Hash)

Raises:



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# File 'lib/eventflit/client.rb', line 357

def authenticate(channel_name, socket_id, custom_data = nil)
  channel_instance = channel(channel_name)
  channel_instance.authenticate(socket_id, custom_data)
end

#authentication_token ⇒ Object

Raises:



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# File 'lib/eventflit/client.rb', line 63

def authentication_token
  raise ConfigurationError, :key unless @key
  raise ConfigurationError, :secret unless @secret
  Pusher::Signature::Token.new(@key, @secret)
end

#channel(channel_name) ⇒ Channel Also known as: []

Return a convenience channel object by name that delegates operations on a channel. No API request is made.

Examples:

Eventflit['my-channel']

Returns:

Raises:

  • (Eventflit::Error) —

    if the channel name is invalid. Channel names should be less than 200 characters, and should not contain anything other than letters, numbers, or the characters “_-=@,.;”



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# File 'lib/eventflit/client.rb', line 213

def channel(channel_name)
  Channel.new(nil, channel_name, self)
end

#channel_info(channel_name, params = {}) ⇒ Hash

Request info for a specific channel

GET /apps//channels/

Parameters:

  • channel_name (String) —

    Channel name (max 200 characters)

  • params (Hash) (defaults to: {}) —

    Hash of parameters for the API - see REST API docs

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 246

def channel_info(channel_name, params = {})
  get("/channels/#{channel_name}", params)
end

#channel_users(channel_name, params = {}) ⇒ Hash

Request info for users of a presence channel

GET /apps//channels//users

Parameters:

  • channel_name (String) —

    Channel name (max 200 characters)

  • params (Hash) (defaults to: {}) —

    Hash of parameters for the API - see REST API docs

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 262

def channel_users(channel_name, params = {})
  get("/channels/#{channel_name}/users", params)
end

#channels(params = {}) ⇒ Hash

Request a list of occupied channels from the API

GET /apps//channels

Parameters:

  • params (Hash) (defaults to: {}) —

    Hash of parameters for the API - see REST API docs

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 230

def channels(params = {})
  get('/channels', params)
end

#cluster=(cluster) ⇒ Object 



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# File 'lib/eventflit/client.rb', line 125

def cluster=(cluster)
  @host = "api-#{cluster}.eventflit.com"
end

#em_http_client(uri) ⇒ Object 



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# File 'lib/eventflit/client.rb', line 377

def em_http_client(uri)
  begin
    unless defined?(EventMachine) && EventMachine.reactor_running?
      raise Error, "In order to use async calling you must be running inside an eventmachine loop"
    end
    require 'em-http' unless defined?(EventMachine::HttpRequest)

    connection_opts = {
      :connect_timeout => @connect_timeout,
      :inactivity_timeout => @receive_timeout,
    }

    if defined?(@proxy)
      proxy_opts = {
        :host => @proxy[:host],
        :port => @proxy[:port]
      }
      if @proxy[:user]
        proxy_opts[:authorization] = [@proxy[:user], @proxy[:password]]
      end
      connection_opts[:proxy] = proxy_opts
    end

    EventMachine::HttpRequest.new(uri, connection_opts)
  end
end

#encrypted=(boolean) ⇒ Object

Configure whether Eventflit API calls should be made over SSL (default false)

Examples:

Eventflit.encrypted = true


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# File 'lib/eventflit/client.rb', line 115

def encrypted=(boolean)
  @scheme = boolean ? 'https' : 'http'
  # Configure port if it hasn't already been configured
  @port = boolean ? 443 : 80
end

#encrypted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eventflit/client.rb', line 121

def encrypted?
  @scheme == 'https'
end

#get(path, params = {}) ⇒ Hash

GET arbitrary REST API resource using a synchronous http client. All request signing is handled automatically.

Examples:

begin
  Eventflit.get('/channels', filter_by_prefix: 'private-')
rescue Eventflit::Error => e
  # Handle error
end

Parameters:

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 159

def get(path, params = {})
  resource(path).get(params)
end

#get_async(path, params = {}) ⇒ Object

GET arbitrary REST API resource using an asynchronous http client. All request signing is handled automatically.

When the eventmachine reactor is running, the em-http-request gem is used; otherwise an async request is made using httpclient. See README for details and examples.

Parameters:

Returns:

  • Either an EM::DefaultDeferrable or a HTTPClient::Connection



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# File 'lib/eventflit/client.rb', line 175

def get_async(path, params = {})
  resource(path).get_async(params)
end

#notification_client ⇒ Object 



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# File 'lib/eventflit/client.rb', line 314

def notification_client
  @notification_client ||=
    NativeNotification::Client.new(@app_id, @notification_host, @notification_scheme, self)
end

#notify(interests, data = {}) ⇒ Hash

Send a push notification

POST /apps//notifications

Parameters:

  • interests (Array) —

    An array of interests

  • message (String) —

    Message to send

  • options (Hash) —

    Additional platform specific options

Returns:

  • (Hash) 


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# File 'lib/eventflit/client.rb', line 329

def notify(interests, data = {})
  notification_client.notify(interests, data)
end

#post(path, params = {}) ⇒ Object

POST arbitrary REST API resource using a synchronous http client. Works identially to get method, but posts params as JSON in post body.



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# File 'lib/eventflit/client.rb', line 181

def post(path, params = {})
  resource(path).post(params)
end

#post_async(path, params = {}) ⇒ Object

POST arbitrary REST API resource using an asynchronous http client. Works identially to get_async method, but posts params as JSON in post body.



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# File 'lib/eventflit/client.rb', line 188

def post_async(path, params = {})
  resource(path).post_async(params)
end

#resource(path) ⇒ Object

INTERACT WITH THE API ##



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# File 'lib/eventflit/client.rb', line 137

def resource(path)
  Resource.new(self, path)
end

#sync_http_client ⇒ Object 



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# File 'lib/eventflit/client.rb', line 363

def sync_http_client
  @client ||= begin
    require 'httpclient'

    HTTPClient.new(@http_proxy).tap do |c|
      c.connect_timeout = @connect_timeout
      c.send_timeout = @send_timeout
      c.receive_timeout = @receive_timeout
      c.keep_alive_timeout = @keep_alive_timeout
    end
  end
end

#timeout=(value) ⇒ Object

Convenience method to set all timeouts to the same value (in seconds). For more control, use the individual writers.



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# File 'lib/eventflit/client.rb', line 131

def timeout=(value)
  @connect_timeout, @send_timeout, @receive_timeout = value, value, value
end

#trigger(channels, event_name, data, params = {}) ⇒ Hash

Trigger an event on one or more channels

POST /apps//events

Parameters:

  • channels (String or Array) —

    1-10 channel names

  • event_name (String)
  • data (Object) —

    Event data to be triggered in javascript. Objects other than strings will be converted to JSON

  • params (Hash) (defaults to: {}) —

    Additional parameters to send to api, e.g socket_id

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 281

def trigger(channels, event_name, data, params = {})
  post('/events', trigger_params(channels, event_name, data, params))
end

#trigger_async(channels, event_name, data, params = {}) ⇒ Object

Trigger an event on one or more channels asynchronously. For parameters see #trigger



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# File 'lib/eventflit/client.rb', line 303

def trigger_async(channels, event_name, data, params = {})
  post_async('/events', trigger_params(channels, event_name, data, params))
end

#trigger_batch(*events) ⇒ Hash

Trigger multiple events at the same time

POST /apps//batch_events

Parameters:

  • events (Array) —

    List of events to publish

Returns:

  • (Hash) —

    See Eventflit API docs

Raises:

  • (Eventflit::Error) —

    Unsuccessful response - see the error message

  • (Eventflit::HTTPError) —

    Error raised inside http client. The original error is wrapped in error.original_error



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# File 'lib/eventflit/client.rb', line 296

def trigger_batch(*events)
  post('/batch_events', trigger_batch_params(events.flatten))
end

#trigger_batch_async(*events) ⇒ Object

Trigger multiple events asynchronously. For parameters see #trigger_batch



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# File 'lib/eventflit/client.rb', line 310

def trigger_batch_async(*events)
  post_async('/batch_events', trigger_batch_params(events.flatten))
end

#url(path = nil) ⇒ Object

Raises:



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# File 'lib/eventflit/client.rb', line 70

def url(path = nil)
  raise ConfigurationError, :app_id unless @app_id
  URI::Generic.build({
    :scheme => @scheme,
    :host => @host,
    :port => @port,
    :path => "/apps/#{@app_id}#{path}"
  })
end

#url=(url) ⇒ Object

Configure Eventflit connection by providing a url rather than specifying scheme, key, secret, and app_id separately.

Examples:

Eventflit.url = http://KEY:[email protected]/apps/APP_ID


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# File 'lib/eventflit/client.rb', line 86

def url=(url)
  uri = URI.parse(url)
  @scheme = uri.scheme
  @app_id = uri.path.split('/').last
  @key    = uri.user
  @secret = uri.password
  @host   = uri.host
  @port   = uri.port
end

#webhook(request) ⇒ Object

Convenience method for creating a new WebHook instance for validating and extracting info from a received WebHook

Parameters:

  • request (Rack::Request) —

    Either a Rack::Request or a Hash containing :key, :signature, :body, and optionally :content_type.



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# File 'lib/eventflit/client.rb', line 199

def webhook(request)
  WebHook.new(request, self)
end