Yandex Cloud
Search
Contact UsGet started
  • Pricing
  • Customer Stories
  • Documentation
  • Blog
  • All Services
  • System Status
    • Featured
    • Infrastructure & Network
    • Data Platform
    • Containers
    • Developer tools
    • Serverless
    • Security
    • Monitoring & Resources
    • AI for business
    • Business tools
  • All Solutions
    • By industry
    • By use case
    • Economics and Pricing
    • Security
    • Technical Support
    • Start testing with double trial credits
    • Cloud credits to scale your IT product
    • Gateway to Russia
    • Cloud for Startups
    • Center for Technologies and Society
    • Yandex Cloud Partner program
  • Pricing
  • Customer Stories
  • Documentation
  • Blog
© 2025 Direct Cursus Technology L.L.C.
Yandex Serverless Integrations
  • Comparison with other Yandex Cloud services
    • Overview
      • Bus
      • Connector
      • Rule
      • Sending events to the bus
    • Cron expressions
    • Quotas and limits
  • Pricing policy
  • Terraform reference
  • Monitoring metrics
  • Public materials
  • Release notes
  1. Concepts
  2. EventRouter
  3. Bus

Bus

Written by
Yandex Cloud
Updated at July 15, 2025

A bus is a logical entity that groups events and links connectors, which send events to the bus from external sources, with rules that process events and deliver them to targets.

An event is a JSON object delivered to the bus in one of these ways:

  • Via a connector.
  • Via the EventService/Put gRPC API call. You can use the API to deliver user events.

For more information about sending events to a bus, see Sending events to the bus.

An event is considered processed when all targets of all triggered rules return a successful response, or when the event is moved to a dead-letter queue.

Was the article helpful?

Previous
Templating
Next
Connector
© 2025 Direct Cursus Technology L.L.C.