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Yandex Cloud Functions
  • Comparison with other Yandex Cloud services
  • Getting started
    • Overview
    • Creating a function
      • Overview
      • Node.js
      • Python
      • Go
      • PHP
      • Bash
      • Java
    • Creating a trigger
      • Overview
      • Timer
      • Trigger for Message Queue
      • Trigger for Object Storage
      • Trigger for Container Registry
      • Trigger for Cloud Logs
      • Trigger for Cloud Logging
      • Trigger for Yandex IoT Core
      • Trigger for budgets
      • Trigger for Data Streams
  • Step-by-step instructions
    • All instructions
    • Using functions to get an IAM token for a service account
    • Connecting to managed databases from functions
    • Managing rights to access functions
    • Managing functions
      • Creating a function
      • Managing function versions
      • Working in the code editor
      • Invoking a function
      • Updating a function
      • Scaling a function
      • Function monitoring
      • Viewing the execution log
      • Deleting a function
    • Managing triggers
      • Getting information about a trigger
      • Creating a timer
      • Creating a trigger for Message Queue
      • Creating a trigger for Object Storage
      • Creating a trigger for Container Registry
      • Creating a trigger for Cloud Logs
      • Creating a trigger for Cloud Logging
      • Creating a trigger for Yandex IoT Core
      • Creating a trigger for budgets
      • Creating a trigger for Data Streams
      • Updating a trigger
      • Trigger monitoring
      • Deleting a trigger
  • Concepts
    • Overview
    • Function
    • Invoking a function
    • Runtime environment
      • Overview
      • Environment
      • Execution context
      • Preloaded runtime environment
    • Builder
    • Trigger
      • Overview
      • Timer
      • Trigger for Message Queue
      • Trigger for Object Storage
      • Trigger for Container Registry
      • Trigger for Cloud Logs
      • Trigger for Cloud Logging
      • Trigger for Yandex IoT Core
      • Trigger for budgets
      • Trigger for Data Streams
    • Dead Letter Queue
    • Log groups
    • Backups
    • Quotas and limits
  • Developing in Node.js
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Python
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Go
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in PHP
    • Overview
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
  • Developing in Bash
    • Overview
    • Request handler
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in Java
    • Overview
    • Programming model
      • Overview
      • Function interface
      • YcFunction interface
      • HttpServlet class
      • Spring Boot
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Developing in R
    • Overview
    • Programming model
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
  • Developing in C#
    • Overview
    • Programming model
      • Overview
      • Function interface
      • YcFunction interface
    • Managing dependencies
    • Request handler
    • Invocation context
    • Logging
    • Handling errors
    • Using the SDK
  • Practical guidelines
    • Creating skills for Alice
    • Deploying a web application
    • Developing a skill for Alice and a website with authorization
    • Writing data from a device to Managed Service for PostgreSQL
    • Developing a Slack bot
    • Developing a Telegram bot
    • Connecting to a YDB database from a Python function
    • Connecting to a YDB database from a function in Node.js
    • Converting a video to a GIF in Python
  • Pricing policy
  • Access management
  • API Functions reference
    • Authentication in the API
    • gRPC
      • Overview
      • FunctionService
      • OperationService
    • REST
      • Overview
      • Function
        • Overview
        • create
        • createVersion
        • delete
        • get
        • getVersion
        • getVersionByTag
        • list
        • listAccessBindings
        • listOperations
        • listRuntimes
        • listScalingPolicies
        • listTagHistory
        • listVersions
        • removeScalingPolicy
        • removeTag
        • setAccessBindings
        • setScalingPolicy
        • setTag
        • update
        • updateAccessBindings
  • API Triggers reference
    • Authentication in the API
    • gRPC
      • Overview
      • TriggerService
      • OperationService
    • REST
      • Overview
      • Trigger
        • Overview
        • create
        • delete
        • get
        • list
        • listOperations
        • pause
        • resume
        • update
  • Questions and answers
  1. Concepts
  2. Trigger
  3. Overview

Triggers. Overview

Written by
Yandex.Cloud
  • Specifics of functions invoked by triggers

Triggers are the criteria that automatically launch a function in Cloud Functions or a container in Serverless Containers. Triggers let you automate your work with other Yandex Cloud services, such as Yandex Object Storage, Yandex Message Queue, and Yandex IoT Core.

Note

The trigger is initiated within 5 minutes of being created.

The following types of triggers are available in Cloud Functions:

  • Timer.
  • Trigger for Message Queue.
  • Trigger for Object Storage.
  • Trigger for Yandex IoT Core.
  • Trigger for Container Registry.
  • Trigger for Cloud Logs.
  • Trigger for Cloud Logging.
  • Trigger for budgets.
  • Trigger for Data Streams.

Specifics of functions invoked by triggers

Triggers call functions based on preset quotas and limits.

When a function is called by a trigger, the following specifics apply:

  • Functions are always called by triggers with the integration=raw query string parameter. Read more about function calls.
  • Before the trigger passes messages to a function, it changes their format. Each trigger has a specific message format. Read more about this in the trigger description.

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