Class: Etcdv3::Watch

Inherits:
Object
  • Object
show all
Defined in:
lib/etcdv3/watch.rb

Instance Method Summary collapse

Constructor Details

#initialize(hostname, credentials, metadata = {}) ⇒ Watch

Returns a new instance of Watch.



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# File 'lib/etcdv3/watch.rb', line 4

def initialize(hostname, credentials, metadata = {})
  @stub = Etcdserverpb::Watch::Stub.new(hostname, credentials)
  @metadata = metadata
end

Instance Method Details

#watch(key, range_end, block) ⇒ Object 



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# File 'lib/etcdv3/watch.rb', line 9

def watch(key, range_end, block)
  create_req = Etcdserverpb::WatchCreateRequest.new(key: key, range_end: range_end)
  watch_req = Etcdserverpb::WatchRequest.new(create_request: create_req)
  events = nil
  @stub.watch([watch_req]).each do |resp|
    next if resp.events.empty?
    if block
      block.call(resp.events)
    else
      events = resp.events
      break
    end
  end
  events
end